From 3a20931982e94578bb94510f5e67321f42619646 Mon Sep 17 00:00:00 2001
From: Igor Matsak <matsak.i.v@gmail.com>
Date: Mon, 9 Dec 2019 20:25:02 +0300
Subject: [PATCH] fix delegation views

---
 Atomex.Client.Core                            |   2 +-
 Atomex.Client.Wpf.Installer/Product.wxs       |   2 +-
 Atomex.Client.Wpf/Atomex.Client.Wpf.csproj    |   7 +
 Atomex.Client.Wpf/Common/Navigation.cs        |  13 +-
 .../DelegateConfirmationViewModel.cs          |   2 +
 .../SendViewModels/DelegateViewModel.cs       | 121 ++++--
 Atomex.Client.Wpf/Views/DelegatingPage.xaml   |  31 ++
 .../Views/DelegatingPage.xaml.cs              |  12 +
 Atomex.Client.Wpf/Views/FrameView.xaml.cs     |   1 +
 .../Views/SendViews/DelegatePage.xaml         | 341 ++++++++--------
 .../Views/SendViews/SendPage.xaml             | 367 +++++++++---------
 11 files changed, 497 insertions(+), 402 deletions(-)
 create mode 100644 Atomex.Client.Wpf/Views/DelegatingPage.xaml
 create mode 100644 Atomex.Client.Wpf/Views/DelegatingPage.xaml.cs

diff --git a/Atomex.Client.Core b/Atomex.Client.Core
index 83dfe41..8a3e5eb 160000
--- a/Atomex.Client.Core
+++ b/Atomex.Client.Core
@@ -1 +1 @@
-Subproject commit 83dfe41b806eafac4c35f50c78c23e95992e4305
+Subproject commit 8a3e5ebcca5f454ba881590d2918ff38743f9d6b
diff --git a/Atomex.Client.Wpf.Installer/Product.wxs b/Atomex.Client.Wpf.Installer/Product.wxs
index eb3dc5e..1748b7a 100644
--- a/Atomex.Client.Wpf.Installer/Product.wxs
+++ b/Atomex.Client.Wpf.Installer/Product.wxs
@@ -3,7 +3,7 @@
 <?define Name = "Atomex Client" ?>
 <?define Manufacturer = "Atomex.me" ?>
 <?define Description = "Multicurrency HD wallet with built-in hybrid exchange based on atomic swap." ?>
-<?define Version = "1.0.16" ?>
+<?define Version = "1.0.17" ?>
 <?define UpgradeCode = "DB7FCF8D-E0C6-4C99-A6B1-3FB6D703F97E" ?>
 <?define ExeName = "Atomex.Client.Wpf.exe" ?>
 
diff --git a/Atomex.Client.Wpf/Atomex.Client.Wpf.csproj b/Atomex.Client.Wpf/Atomex.Client.Wpf.csproj
index 79ad9f5..2309894 100644
--- a/Atomex.Client.Wpf/Atomex.Client.Wpf.csproj
+++ b/Atomex.Client.Wpf/Atomex.Client.Wpf.csproj
@@ -406,6 +406,9 @@
     <Compile Include="Views\ConversionConfirmationPage.xaml.cs">
       <DependentUpon>ConversionConfirmationPage.xaml</DependentUpon>
     </Compile>
+    <Compile Include="Views\DelegatingPage.xaml.cs">
+      <DependentUpon>DelegatingPage.xaml</DependentUpon>
+    </Compile>
     <Compile Include="Views\SendViews\DelegateConfirmationPage.xaml.cs">
       <DependentUpon>DelegateConfirmationPage.xaml</DependentUpon>
     </Compile>
@@ -541,6 +544,10 @@
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
     </Page>
+    <Page Include="Views\DelegatingPage.xaml">
+      <Generator>MSBuild:Compile</Generator>
+      <SubType>Designer</SubType>
+    </Page>
     <Page Include="Views\SendViews\DelegateConfirmationPage.xaml">
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
diff --git a/Atomex.Client.Wpf/Common/Navigation.cs b/Atomex.Client.Wpf/Common/Navigation.cs
index 8ab1937..59556f4 100644
--- a/Atomex.Client.Wpf/Common/Navigation.cs
+++ b/Atomex.Client.Wpf/Common/Navigation.cs
@@ -11,6 +11,7 @@ public class Navigation
         public const string DelegateConfirmationAlias = "DelegateConfirmationPage";
         public const string ConversionConfirmationAlias = "ConversionConfirmationPage";
         public const string SendingAlias = "SendingPage";
+        public const string DelegatingAlias = "DelegatingPage";
         public const string MessageAlias = "MessagePage";
         public const string DelegateAlias = "DelegatePage";
 
@@ -71,10 +72,8 @@ public static void Navigate(Page page, object context)
                 navigationState: context);
         }
 
-        public static void Navigate(Page page)
-        {
+        public static void Navigate(Page page) =>
             Navigate(page, null);
-        }
 
         public static void Navigate(string uri, object context)
         {
@@ -86,10 +85,8 @@ public static void Navigate(string uri, object context)
             Navigate(page, context);
         }
 
-        public static void Navigate(string uri)
-        {
+        public static void Navigate(string uri) =>
             Navigate(uri, null);
-        }
 
         public static void Back()
         {
@@ -97,9 +94,7 @@ public static void Back()
                 Instance._service.GoBack();
         }
 
-        public static void UseResolver(IPageResolver resolver)
-        {
+        public static void UseResolver(IPageResolver resolver) =>
             Instance._resolver = resolver;
-        }
     }
 }
\ No newline at end of file
diff --git a/Atomex.Client.Wpf/ViewModels/SendViewModels/DelegateConfirmationViewModel.cs b/Atomex.Client.Wpf/ViewModels/SendViewModels/DelegateConfirmationViewModel.cs
index b30b6e1..b28c332 100644
--- a/Atomex.Client.Wpf/ViewModels/SendViewModels/DelegateConfirmationViewModel.cs
+++ b/Atomex.Client.Wpf/ViewModels/SendViewModels/DelegateConfirmationViewModel.cs
@@ -57,6 +57,8 @@ private async void Send()
             
             try
             {
+                Navigation.Navigate(uri: Navigation.DelegatingAlias);
+
                 var signResult = await Tx
                     .SignDelegationOperationAsync(keyStorage, WalletAddress, default);
 
diff --git a/Atomex.Client.Wpf/ViewModels/SendViewModels/DelegateViewModel.cs b/Atomex.Client.Wpf/ViewModels/SendViewModels/DelegateViewModel.cs
index 6ebeb2c..882cb78 100644
--- a/Atomex.Client.Wpf/ViewModels/SendViewModels/DelegateViewModel.cs
+++ b/Atomex.Client.Wpf/ViewModels/SendViewModels/DelegateViewModel.cs
@@ -87,7 +87,8 @@ public BakerViewModel BakerViewModel
                 _bakerViewModel = value;
                 OnPropertyChanged(nameof(BakerViewModel));
                 
-                Address = _bakerViewModel?.Address;
+                if (_bakerViewModel != null)
+                    Address = _bakerViewModel.Address;
             }
         }
         
@@ -171,7 +172,18 @@ public bool UseDefaultFee
         public string Address
         {
             get => _address;
-            set { _address = value; OnPropertyChanged(nameof(Address)); }
+            set
+            {
+                _address = value;
+                OnPropertyChanged(nameof(Address));
+
+                var baker = FromBakersList.FirstOrDefault(b => b.Address == _address);
+
+                if (baker == null)
+                    BakerViewModel = null;
+                else if (baker != BakerViewModel)
+                    BakerViewModel = baker;
+            }
         }
 
         private string _warning;
@@ -187,59 +199,82 @@ public string Warning
             DialogViewer?.HideDelegateDialog();
         }));
 
+        private bool _delegationCheck;
+        public bool DelegationCheck
+        {
+            get => _delegationCheck;
+            set { _delegationCheck = value; OnPropertyChanged(nameof(DelegationCheck)); }
+        }
+
         private ICommand _nextCommand;
         public ICommand NextCommand => _nextCommand ?? (_nextCommand = new Command(async () =>
         {
-            if (string.IsNullOrEmpty(Address)) {
-                Warning = Resources.SvEmptyAddressError;
+            if (DelegationCheck)
                 return;
-            }
 
-            if (!_tezos.IsValidAddress(Address)) {
-                Warning = Resources.SvInvalidAddressError;
-                return;
-            }
+            DelegationCheck = true;
 
-            if (Fee < 0) {
-                Warning = Resources.SvCommissionLessThanZeroError;
-                return;
-            }
+            try
+            {
 
-            /*
-            if (xTezos.GetFeeAmount(Fee, FeePrice) > CurrencyViewModel.AvailableAmount) {
-                Warning = Resources.SvAvailableFundsError;
-                return;
-            }*/
+                if (string.IsNullOrEmpty(Address))
+                {
+                    Warning = Resources.SvEmptyAddressError;
+                    return;
+                }
 
-            var result = await SendDelegation();
+                if (!_tezos.IsValidAddress(Address))
+                {
+                    Warning = Resources.SvInvalidAddressError;
+                    return;
+                }
 
-            if (result.HasError)
-                Warning = result.Error.Description;
-            else
-            {
-                var confirmationViewModel = new DelegateConfirmationViewModel(DialogViewer, _onDelegate)
+                if (Fee < 0)
                 {
-                    Currency = _tezos,
-                    WalletAddress = WalletAddress,
-                    UseDefaultFee = UseDefaultFee,
-                    Tx = _tx,
-                    From = WalletAddress.Address,
-                    To = Address,
-                    BaseCurrencyCode = BaseCurrencyCode,
-                    BaseCurrencyFormat = BaseCurrencyFormat,
-                    Fee = Fee,
-                    FeeInBase = FeeInBase,
-                    CurrencyCode = _tezos.FeeCode,
-                    CurrencyFormat = _tezos.FeeFormat
-                };
-                
-                Navigation.Navigate(
-                    uri: Navigation.DelegateConfirmationAlias,
-                    context: confirmationViewModel);
+                    Warning = Resources.SvCommissionLessThanZeroError;
+                    return;
+                }
+
+                /*
+                if (xTezos.GetFeeAmount(Fee, FeePrice) > CurrencyViewModel.AvailableAmount) {
+                    Warning = Resources.SvAvailableFundsError;
+                    return;
+                }*/
+
+                var result = await GetDelegate();
+
+                if (result.HasError)
+                    Warning = result.Error.Description;
+                else
+                {
+                    var confirmationViewModel = new DelegateConfirmationViewModel(DialogViewer, _onDelegate)
+                    {
+                        Currency = _tezos,
+                        WalletAddress = WalletAddress,
+                        UseDefaultFee = UseDefaultFee,
+                        Tx = _tx,
+                        From = WalletAddress.Address,
+                        To = Address,
+                        BaseCurrencyCode = BaseCurrencyCode,
+                        BaseCurrencyFormat = BaseCurrencyFormat,
+                        Fee = Fee,
+                        FeeInBase = FeeInBase,
+                        CurrencyCode = _tezos.FeeCode,
+                        CurrencyFormat = _tezos.FeeFormat
+                    };
+
+                    Navigation.Navigate(
+                        uri: Navigation.DelegateConfirmationAlias,
+                        context: confirmationViewModel);
+                }
+            }
+            finally
+            {
+                DelegationCheck = false;
             }
         }));
 
-        private Action _onDelegate;
+        private readonly Action _onDelegate;
 
         public DelegateViewModel()
         {
@@ -318,7 +353,7 @@ private async Task PrepareWallet(CancellationToken cancellationToken = default)
             WalletAddress = FromAddressList.FirstOrDefault().WalletAddress;
         }
 
-        private async Task<Result<string>> SendDelegation(CancellationToken cancellationToken = default)
+        private async Task<Result<string>> GetDelegate(CancellationToken cancellationToken = default)
         {
             if(_walletAddress == null)
                 return new Result<string>(new Error(Errors.InvalidWallets, "You don't have non-empty accounts"));
diff --git a/Atomex.Client.Wpf/Views/DelegatingPage.xaml b/Atomex.Client.Wpf/Views/DelegatingPage.xaml
new file mode 100644
index 0000000..acd96b6
--- /dev/null
+++ b/Atomex.Client.Wpf/Views/DelegatingPage.xaml
@@ -0,0 +1,31 @@
+<Page x:Class="Atomex.Client.Wpf.Views.DelegatingPage"
+      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+      xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+      xmlns:mah="http://metro.mahapps.com/winfx/xaml/controls"
+      mc:Ignorable="d" 
+      d:DesignHeight="200"
+      d:DesignWidth="560">
+
+    <StackPanel Orientation="Vertical">
+        <Border Margin="0 10 0 10"
+                Height="33"
+                VerticalAlignment="Top"
+                HorizontalAlignment="Stretch"
+                Background="{StaticResource ChildViewHeaderBackgroundBrush}">
+            <TextBlock Text="Delegating..."
+                       Foreground="{StaticResource ChildViewHeaderForegroundBrush}"
+                       FontFamily="{StaticResource RobotoLight}"
+                       FontSize="25"
+                       HorizontalAlignment="Center"
+                       VerticalAlignment="Center"/>
+        </Border>
+
+        <Grid>
+            <mah:ProgressRing Width="50"
+                              Height="50"
+                              Margin="0 40 0 40"/>
+        </Grid>
+    </StackPanel>
+</Page>
diff --git a/Atomex.Client.Wpf/Views/DelegatingPage.xaml.cs b/Atomex.Client.Wpf/Views/DelegatingPage.xaml.cs
new file mode 100644
index 0000000..c36b8b3
--- /dev/null
+++ b/Atomex.Client.Wpf/Views/DelegatingPage.xaml.cs
@@ -0,0 +1,12 @@
+using System.Windows.Controls;
+
+namespace Atomex.Client.Wpf.Views
+{
+    public partial class DelegatingPage : Page
+    {
+        public DelegatingPage()
+        {
+            InitializeComponent();
+        }
+    }
+}
\ No newline at end of file
diff --git a/Atomex.Client.Wpf/Views/FrameView.xaml.cs b/Atomex.Client.Wpf/Views/FrameView.xaml.cs
index 5b5291e..1b4f4ad 100644
--- a/Atomex.Client.Wpf/Views/FrameView.xaml.cs
+++ b/Atomex.Client.Wpf/Views/FrameView.xaml.cs
@@ -24,6 +24,7 @@ private void OnLoaded(
             resolver.AddResolver(Navigation.ConversionConfirmationAlias, () => new ConversionConfirmationPage());
             resolver.AddResolver(Navigation.SendingAlias, () => new SendingPage());
             resolver.AddResolver(Navigation.DelegateAlias, () => new DelegatePage());
+            resolver.AddResolver(Navigation.DelegatingAlias, () => new DelegatingPage());
 
             Navigation.UseResolver(resolver);
             Navigation.Service = Frame.NavigationService;
diff --git a/Atomex.Client.Wpf/Views/SendViews/DelegatePage.xaml b/Atomex.Client.Wpf/Views/SendViews/DelegatePage.xaml
index 8d2afbb..7d7ee1f 100644
--- a/Atomex.Client.Wpf/Views/SendViews/DelegatePage.xaml
+++ b/Atomex.Client.Wpf/Views/SendViews/DelegatePage.xaml
@@ -18,183 +18,194 @@
       d:DataContext="{d:DesignInstance Type=viewModels:DelegateViewModel, IsDesignTimeCreatable=True}">
     <Page.Resources>
         <SolidColorBrush x:Key="AmountBrush" Color="#ffa500"/>
-        <converters:InverseBooleanConverter x:Key="InverseBooleanConverter" />
-        <converters:BoolToVisibilityConverter x:Key="BoolToVisibilityConverter" FalseEquivalent="Collapsed" />
+        <converters:InverseBooleanConverter x:Key="InverseBooleanConverter"/>
+        <converters:BoolToVisibilityConverter x:Key="BoolToVisibilityConverter" FalseEquivalent="Collapsed"/>
+        <converters:BoolToVisibilityConverter x:Key="InverseBoolToVisibilityConverter" FalseEquivalent="Collapsed" OppositeBoolValue="True"/>
     </Page.Resources>
 
-    <StackPanel Orientation="Vertical"
-                Width="600">
+    <Grid Width="600">
+        <StackPanel Orientation="Vertical"                     
+                    IsEnabled="{Binding DelegationCheck, Converter={StaticResource InverseBooleanConverter}}">
 
-        <Border Margin="0 10 0 10"
-                Height="33"
-                VerticalAlignment="Top"
-                HorizontalAlignment="Stretch"
-                Background="{StaticResource ChildViewHeaderBackgroundBrush}">
-            <TextBlock Text="Delegate"
-                       Foreground="{StaticResource ChildViewHeaderForegroundBrush}"
+            <Border Margin="0 10 0 10"
+                    Height="33"
+                    VerticalAlignment="Top"
+                    HorizontalAlignment="Stretch"
+                    Background="{StaticResource ChildViewHeaderBackgroundBrush}">
+                <TextBlock Text="Delegate"
+                           Foreground="{StaticResource ChildViewHeaderForegroundBrush}"
+                           FontFamily="{StaticResource RobotoLight}"
+                           FontSize="25"
+                           HorizontalAlignment="Center"
+                           VerticalAlignment="Center"/>
+            </Border>
+
+            <TextBlock Text="Delegating to a bakery."
+                       Foreground="{StaticResource DefaultForegroundBrush}"
                        FontFamily="{StaticResource RobotoLight}"
-                       FontSize="25"
-                       HorizontalAlignment="Center"
-                       VerticalAlignment="Center"/>
-        </Border>
+                       FontSize="15"
+                       Margin="40 20 40 15"
+                       TextWrapping="Wrap"
+                       HorizontalAlignment="Center"/>
 
-        <TextBlock Text="Delegating to a bakery."
-                   Foreground="{StaticResource DefaultForegroundBrush}"
-                   FontFamily="{StaticResource RobotoLight}"
-                   FontSize="15"
-                   Margin="40 20 40 15"
-                   TextWrapping="Wrap"
-                   HorizontalAlignment="Center"/>
+            <ComboBox Width="510"
+                      MinHeight="68"
+                      Margin="0 5 0 5"
+                      ItemsSource="{Binding FromBakersList}"
+                      SelectedValue="{Binding BakerViewModel}"
+                      helpers:ComboBoxHelper.CornerRadius="20"
+                      Style="{StaticResource BakersComboBox}"/>
 
-        <ComboBox Width="510"
-                  MinHeight="68"
-                  Margin="0 5 0 5"
-                  ItemsSource="{Binding FromBakersList}"
-                  SelectedValue="{Binding BakerViewModel}"
-                  helpers:ComboBoxHelper.CornerRadius="20"
-                  Style="{StaticResource BakersComboBox}"/>
+            <StackPanel Orientation="Horizontal"
+                        HorizontalAlignment="Center">
+                <Border Style="{StaticResource FieldHeader}">
+                    <TextBlock Text="To Address:"
+                               Margin="0 0 7 0"
+                               Foreground="{StaticResource DefaultForegroundBrush}"
+                               FontFamily="{StaticResource RobotoMedium}"
+                               FontSize="13"
+                               VerticalAlignment="Center"
+                               HorizontalAlignment="Right"/>
+                </Border>
+                <TextBox Width="410"
+                         Height="40"
+                         Margin="0 5 0 5"
+                         Text="{Binding Address, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                         Background="{StaticResource DefaultSubstrateBrush}"
+                         Foreground="{StaticResource DefaultForegroundBrush}"
+                         helpers:TextBoxHelper.CornerRadius="0 20 20 0"
+                         FontFamily="Roboto"
+                         Style="{StaticResource CustomTextBox}"/>
+            </StackPanel>
 
-        <StackPanel Orientation="Horizontal"
-                    HorizontalAlignment="Center">
-            <Border Style="{StaticResource FieldHeader}">
-                <TextBlock Text="To Address:"
-                           Margin="0 0 7 0"
-                           Foreground="{StaticResource DefaultForegroundBrush}"
-                           FontFamily="{StaticResource RobotoMedium}"
-                           FontSize="13"
-                           VerticalAlignment="Center"
-                           HorizontalAlignment="Right"/>
-            </Border>
-            <TextBox Width="410"
-                     Height="40"
-                     Margin="0 5 0 5"
-                     Text="{Binding Address, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
-                     Background="{StaticResource DefaultSubstrateBrush}"
-                     Foreground="{StaticResource DefaultForegroundBrush}"
-                     helpers:TextBoxHelper.CornerRadius="0 20 20 0"
-                     FontFamily="Roboto"
-                     Style="{StaticResource CustomTextBox}"/>
-        </StackPanel>
-
-        <StackPanel Orientation="Horizontal"
-                    HorizontalAlignment="Center">
-            <Border Style="{StaticResource FieldHeader}">
-                <TextBlock Text="From Address:"
-                           Margin="0 0 7 0"
-                           Foreground="{StaticResource DefaultForegroundBrush}"
-                           FontFamily="{StaticResource RobotoMedium}"
-                           FontSize="13"
-                           VerticalAlignment="Center"
-                           HorizontalAlignment="Right"/>
-            </Border>
-            <ComboBox Width="410"
-                     Height="40"
-                     Margin="0 5 0 5"
-                     ItemsSource="{Binding FromAddressList}"
-                     SelectedValuePath="WalletAddress"
-                     SelectedValue="{Binding WalletAddress, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}"
-                     Background="{StaticResource DefaultSubstrateBrush}"
-                     Foreground="{StaticResource DefaultForegroundBrush}"
-                     helpers:ComboBoxHelper.CornerRadius="0 20 20 0"
-                     Style="{StaticResource CustomComboBox}">
-                <ComboBox.ItemTemplate>
-                    <DataTemplate DataType="{x:Type ComboBoxItem}">
-                        <StackPanel Orientation="Horizontal">
-                            <TextBlock
-                                Margin="3 0 0 0"
-                                Text="{Binding Address}"
-                                Foreground="{StaticResource DefaultForegroundBrush}"
-                                FontSize="12"
-                                FontFamily="{StaticResource Roboto}"
-                                HorizontalAlignment="Left"
-                                VerticalAlignment="Center"/>
-                            <TextBlock
-                                Margin="10 0 0 0"
-                                Text="{Binding AvailableBalance, StringFormat=0.000000}"
-                                Foreground="{StaticResource AmountBrush}"
-                                FontSize="12"
-                                FontFamily="{StaticResource Roboto}"
-                                 VerticalAlignment="Center"/>
-                        </StackPanel>
-                    </DataTemplate>
-                </ComboBox.ItemTemplate>
-            </ComboBox>
-        </StackPanel>
+            <StackPanel Orientation="Horizontal"
+                        HorizontalAlignment="Center">
+                <Border Style="{StaticResource FieldHeader}">
+                    <TextBlock Text="From Address:"
+                               Margin="0 0 7 0"
+                               Foreground="{StaticResource DefaultForegroundBrush}"
+                               FontFamily="{StaticResource RobotoMedium}"
+                               FontSize="13"
+                               VerticalAlignment="Center"
+                               HorizontalAlignment="Right"/>
+                </Border>
+                <ComboBox Width="410"
+                         Height="40"
+                         Margin="0 5 0 5"
+                         ItemsSource="{Binding FromAddressList}"
+                         SelectedValuePath="WalletAddress"
+                         SelectedValue="{Binding WalletAddress, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}"
+                         Background="{StaticResource DefaultSubstrateBrush}"
+                         Foreground="{StaticResource DefaultForegroundBrush}"
+                         helpers:ComboBoxHelper.CornerRadius="0 20 20 0"
+                         Style="{StaticResource CustomComboBox}">
+                    <ComboBox.ItemTemplate>
+                        <DataTemplate DataType="{x:Type ComboBoxItem}">
+                            <StackPanel Orientation="Horizontal">
+                                <TextBlock
+                                    Margin="3 0 0 0"
+                                    Text="{Binding Address}"
+                                    Foreground="{StaticResource DefaultForegroundBrush}"
+                                    FontSize="12"
+                                    FontFamily="{StaticResource Roboto}"
+                                    HorizontalAlignment="Left"
+                                    VerticalAlignment="Center"/>
+                                <TextBlock
+                                    Margin="10 0 0 0"
+                                    Text="{Binding AvailableBalance, StringFormat=0.000000}"
+                                    Foreground="{StaticResource AmountBrush}"
+                                    FontSize="12"
+                                    FontFamily="{StaticResource Roboto}"
+                                     VerticalAlignment="Center"/>
+                            </StackPanel>
+                        </DataTemplate>
+                    </ComboBox.ItemTemplate>
+                </ComboBox>
+            </StackPanel>
 
-        <StackPanel Orientation="Horizontal"
-                    HorizontalAlignment="Center"/>
+            <StackPanel Orientation="Horizontal"
+                        HorizontalAlignment="Center"/>
 
-        <StackPanel Orientation="Horizontal"
-                    HorizontalAlignment="Center"
-                    IsEnabled="{Binding UseDefaultFee, Converter={StaticResource InverseBooleanConverter}}"
-                    Style="{StaticResource BaseDisabledStyle}">
-            <Border Style="{StaticResource FieldHeader}">
-                <TextBlock Text="Fee:"
-                           Margin="0 0 7 0"
-                           Foreground="{StaticResource DefaultForegroundBrush}"
-                           FontFamily="{StaticResource RobotoMedium}"
-                           FontSize="13"
-                           VerticalAlignment="Center"
-                           HorizontalAlignment="Right"/>
-            </Border>
+            <StackPanel Orientation="Horizontal"
+                        HorizontalAlignment="Center"
+                        IsEnabled="{Binding UseDefaultFee, Converter={StaticResource InverseBooleanConverter}}"
+                        Style="{StaticResource BaseDisabledStyle}">
+                <Border Style="{StaticResource FieldHeader}">
+                    <TextBlock Text="Fee:"
+                               Margin="0 0 7 0"
+                               Foreground="{StaticResource DefaultForegroundBrush}"
+                               FontFamily="{StaticResource RobotoMedium}"
+                               FontSize="13"
+                               VerticalAlignment="Center"
+                               HorizontalAlignment="Right"/>
+                </Border>
 
-            <TextBox Width="410"
-                     Height="40"
-                     Margin="0 5 0 5"
-                     FontSize="18"
-                     Background="{StaticResource DefaultSubstrateBrush}"
-                     Foreground="{StaticResource DefaultForegroundBrush}"
-                     Text="{Binding FeeString, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
-                     helpers:TextBoxHelper.CornerRadius="0 20 20 0"
-                     helpers:AmountTextBoxHelper.CurrencyCode="{Binding FeeCurrencyCode}"
-                     helpers:AmountTextBoxHelper.BaseCurrencyCode="{Binding BaseCurrencyCode}"
-                     Style="{StaticResource AmountTextBox}">
-                <helpers:AmountTextBoxHelper.AmountInBase>
-                    <MultiBinding Converter="{StaticResource AmountToStringConverter}">
-                        <Binding Path="FeeInBase" Mode="OneWay"/>
-                        <Binding Path="BaseCurrencyFormat" Mode="OneWay"/>
-                    </MultiBinding>
-                </helpers:AmountTextBoxHelper.AmountInBase>
-                <i:Interaction.Behaviors>
-                    <behaviors:TextBoxInputBehavior InputMode="DecimalInput"
-                                                    UseInvariantCulture="True"
-                                                    JustPositiveDecimalInput="True"/>
-                </i:Interaction.Behaviors>
-            </TextBox>
-        </StackPanel>
+                <TextBox Width="410"
+                         Height="40"
+                         Margin="0 5 0 5"
+                         FontSize="18"
+                         Background="{StaticResource DefaultSubstrateBrush}"
+                         Foreground="{StaticResource DefaultForegroundBrush}"
+                         Text="{Binding FeeString, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                         helpers:TextBoxHelper.CornerRadius="0 20 20 0"
+                         helpers:AmountTextBoxHelper.CurrencyCode="{Binding FeeCurrencyCode}"
+                         helpers:AmountTextBoxHelper.BaseCurrencyCode="{Binding BaseCurrencyCode}"
+                         Style="{StaticResource AmountTextBox}">
+                    <helpers:AmountTextBoxHelper.AmountInBase>
+                        <MultiBinding Converter="{StaticResource AmountToStringConverter}">
+                            <Binding Path="FeeInBase" Mode="OneWay"/>
+                            <Binding Path="BaseCurrencyFormat" Mode="OneWay"/>
+                        </MultiBinding>
+                    </helpers:AmountTextBoxHelper.AmountInBase>
+                    <i:Interaction.Behaviors>
+                        <behaviors:TextBoxInputBehavior InputMode="DecimalInput"
+                                                        UseInvariantCulture="True"
+                                                        JustPositiveDecimalInput="True"/>
+                    </i:Interaction.Behaviors>
+                </TextBox>
+            </StackPanel>
 
-        <mah:ToggleSwitch IsChecked="{Binding UseDefaultFee}"
-                          HorizontalAlignment="Center"
-                          OffLabel="Use default fee"
-                          OnLabel="Use default fee"
-                          FontFamily="{StaticResource RobotoLight}"
-                          FontSize="13"
-                          Margin="10"
-                          Style="{StaticResource MahApps.Metro.Styles.ToggleSwitch.Win10}"/>
+            <mah:ToggleSwitch IsChecked="{Binding UseDefaultFee}"
+                              HorizontalAlignment="Center"
+                              OffLabel="Use default fee"
+                              OnLabel="Use default fee"
+                              FontFamily="{StaticResource RobotoLight}"
+                              FontSize="13"
+                              Margin="10"
+                              Style="{StaticResource MahApps.Metro.Styles.ToggleSwitch.Win10}"/>
 
-        <TextBlock Text="{Binding Warning}"
-                   Foreground="{StaticResource WarningForegroundBrush}"
-                   FontFamily="{StaticResource RobotoLight}"
-                   FontSize="13"
-                   Margin="20 5 20 0"
-                   TextWrapping="Wrap"
-                   HorizontalAlignment="Center"
-                   VerticalAlignment="Bottom"/>
+            <TextBlock Text="{Binding Warning}"
+                       Foreground="{StaticResource WarningForegroundBrush}"
+                       FontFamily="{StaticResource RobotoLight}"
+                       FontSize="13"
+                       Margin="20 5 20 0"
+                       TextWrapping="Wrap"
+                       HorizontalAlignment="Center"
+                       VerticalAlignment="Bottom"/>
 
-        <StackPanel Orientation="Horizontal"
-                    HorizontalAlignment="Center"
-                    Margin="0 20 0 20">
-            <controls:RoundedButton Width="100"
-                                    Height="40"
-                                    Margin="0 0 3 0"
-                                    CornerRadius="20 0 0 20"
-                                    Content="Cancel"
-                                    Command="{Binding BackCommand}"/>
-            <controls:RoundedButton Width="100"
-                                    Height="40"
-                                    CornerRadius="0 20 20 0"
-                                    Content="Send"
-                                    Command="{Binding NextCommand}"/>
+            <StackPanel Orientation="Horizontal"
+                        HorizontalAlignment="Center"
+                        Margin="0 20 0 20">
+                <controls:RoundedButton Width="100"
+                                        Height="40"
+                                        Margin="0 0 3 0"
+                                        CornerRadius="20 0 0 20"
+                                        Content="Cancel"
+                                        Command="{Binding BackCommand}"/>
+                <controls:RoundedButton Width="100"
+                                        Height="40"
+                                        CornerRadius="0 20 20 0"
+                                        Content="Delegate"
+                                        Command="{Binding NextCommand}"/>
+            </StackPanel>
         </StackPanel>
-    </StackPanel>
+
+        <Border Background="{StaticResource DefaultSubstrateBrush}"
+                Visibility="{Binding DelegationCheck, Converter={StaticResource BoolToVisibilityConverter}}"/>
+
+        <mah:ProgressRing Width="80"
+                          Height="80"
+                          IsActive="{Binding DelegationCheck}"
+                          Visibility="{Binding DelegationCheck, Converter={StaticResource BoolToVisibilityConverter}}"/>
+    </Grid>
 </Page>
\ No newline at end of file
diff --git a/Atomex.Client.Wpf/Views/SendViews/SendPage.xaml b/Atomex.Client.Wpf/Views/SendViews/SendPage.xaml
index e3097fe..1c363cf 100644
--- a/Atomex.Client.Wpf/Views/SendViews/SendPage.xaml
+++ b/Atomex.Client.Wpf/Views/SendViews/SendPage.xaml
@@ -21,202 +21,203 @@
         <converters:BoolToVisibilityConverter x:Key="BoolToVisibilityConverter" FalseEquivalent="Collapsed" />
     </Page.Resources>
 
-    <StackPanel Orientation="Vertical"
-                Width="560">
+    <Grid Width="560">
+        <StackPanel Orientation="Vertical">
 
-        <Border Margin="0 10 0 10"
-                Height="33"
-                VerticalAlignment="Top"
-                HorizontalAlignment="Stretch"
-                Background="{StaticResource ChildViewHeaderBackgroundBrush}">
-            <TextBlock Text="Send"
-                       Foreground="{StaticResource ChildViewHeaderForegroundBrush}"
+            <Border Margin="0 10 0 10"
+                    Height="33"
+                    VerticalAlignment="Top"
+                    HorizontalAlignment="Stretch"
+                    Background="{StaticResource ChildViewHeaderBackgroundBrush}">
+                <TextBlock Text="Send"
+                           Foreground="{StaticResource ChildViewHeaderForegroundBrush}"
+                           FontFamily="{StaticResource RobotoLight}"
+                           FontSize="25"
+                           HorizontalAlignment="Center"
+                           VerticalAlignment="Center"/>
+            </Border>
+
+            <TextBlock Text="Instantly sending of currency."
+                       Foreground="{StaticResource DefaultForegroundBrush}"
                        FontFamily="{StaticResource RobotoLight}"
-                       FontSize="25"
-                       HorizontalAlignment="Center"
-                       VerticalAlignment="Center"/>
-        </Border>
+                       FontSize="15"
+                       Margin="40 20 40 15"
+                       TextWrapping="Wrap"
+                       HorizontalAlignment="Center"/>
 
-        <TextBlock Text="Instantly sending of currency."
-                   Foreground="{StaticResource DefaultForegroundBrush}"
-                   FontFamily="{StaticResource RobotoLight}"
-                   FontSize="15"
-                   Margin="40 20 40 15"
-                   TextWrapping="Wrap"
-                   HorizontalAlignment="Center"/>
+            <ComboBox Width="480"
+                      MinHeight="68"
+                      Margin="0 5 0 5"
+                      ItemsSource="{Binding FromCurrencies}"
+                      SelectedValuePath="Currency"
+                      SelectedValue="{Binding Currency}"
+                      helpers:ComboBoxHelper.CornerRadius="20"
+                      Style="{StaticResource CurrencyComboBox}"/>
 
-        <ComboBox Width="480"
-                  MinHeight="68"
-                  Margin="0 5 0 5"
-                  ItemsSource="{Binding FromCurrencies}"
-                  SelectedValuePath="Currency"
-                  SelectedValue="{Binding Currency}"
-                  helpers:ComboBoxHelper.CornerRadius="20"
-                  Style="{StaticResource CurrencyComboBox}"/>
+            <StackPanel Orientation="Horizontal"
+                        HorizontalAlignment="Center">
+                <Border Style="{StaticResource FieldHeader}">
+                    <TextBlock Text="To Address:"
+                               Margin="0 0 7 0"
+                               Foreground="{StaticResource DefaultForegroundBrush}"
+                               FontFamily="{StaticResource RobotoMedium}"
+                               FontSize="13"
+                               VerticalAlignment="Center"
+                               HorizontalAlignment="Right"/>
+                </Border>
+                <TextBox Width="380"
+                         Height="40"
+                         Margin="0 5 0 5"
+                         Text="{Binding To, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                         Background="{StaticResource DefaultSubstrateBrush}"
+                         Foreground="{StaticResource DefaultForegroundBrush}"
+                         helpers:TextBoxHelper.CornerRadius="0 20 20 0"
+                         Style="{StaticResource CustomTextBox}"/>
+            </StackPanel>
 
-        <StackPanel Orientation="Horizontal"
-                    HorizontalAlignment="Center">
-            <Border Style="{StaticResource FieldHeader}">
-                <TextBlock Text="To Address:"
-                           Margin="0 0 7 0"
-                           Foreground="{StaticResource DefaultForegroundBrush}"
-                           FontFamily="{StaticResource RobotoMedium}"
-                           FontSize="13"
-                           VerticalAlignment="Center"
-                           HorizontalAlignment="Right"/>
-            </Border>
-            <TextBox Width="380"
-                     Height="40"
-                     Margin="0 5 0 5"
-                     Text="{Binding To, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
-                     Background="{StaticResource DefaultSubstrateBrush}"
-                     Foreground="{StaticResource DefaultForegroundBrush}"
-                     helpers:TextBoxHelper.CornerRadius="0 20 20 0"
-                     Style="{StaticResource CustomTextBox}"/>
-        </StackPanel>
+            <StackPanel Orientation="Horizontal"
+                        HorizontalAlignment="Center">
+                <Border Style="{StaticResource FieldHeader}">
+                    <TextBlock Text="Amount:"
+                               Margin="0 0 7 0"
+                               Foreground="{StaticResource DefaultForegroundBrush}"
+                               FontFamily="{StaticResource RobotoMedium}"
+                               FontSize="13"
+                               VerticalAlignment="Center"
+                               HorizontalAlignment="Right"/>
+                </Border>
 
-        <StackPanel Orientation="Horizontal"
-                    HorizontalAlignment="Center">
-            <Border Style="{StaticResource FieldHeader}">
-                <TextBlock Text="Amount:"
-                           Margin="0 0 7 0"
-                           Foreground="{StaticResource DefaultForegroundBrush}"
-                           FontFamily="{StaticResource RobotoMedium}"
-                           FontSize="13"
-                           VerticalAlignment="Center"
-                           HorizontalAlignment="Right"/>
-            </Border>
- 
-            <TextBox Width="380"
-                     Height="40"
-                     Margin="0 5 0 5"
-                     FontSize="18"
-                     Background="{StaticResource DefaultSubstrateBrush}"
-                     Foreground="{StaticResource DefaultForegroundBrush}"
-                     Text="{Binding AmountString, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
-                     helpers:TextBoxHelper.CornerRadius="0 20 20 0"
-                     helpers:AmountTextBoxHelper.CurrencyCode="{Binding CurrencyCode}"
-                     helpers:AmountTextBoxHelper.BaseCurrencyCode="{Binding BaseCurrencyCode}"
-                     Style="{StaticResource AmountTextBox}">
-                <helpers:AmountTextBoxHelper.AmountInBase>
-                    <MultiBinding Converter="{StaticResource AmountToStringConverter}">
-                        <Binding Path="AmountInBase" Mode="OneWay"/>
-                        <Binding Path="BaseCurrencyFormat" Mode="OneWay"/>
-                    </MultiBinding>
-                </helpers:AmountTextBoxHelper.AmountInBase>
+                <TextBox Width="380"
+                         Height="40"
+                         Margin="0 5 0 5"
+                         FontSize="18"
+                         Background="{StaticResource DefaultSubstrateBrush}"
+                         Foreground="{StaticResource DefaultForegroundBrush}"
+                         Text="{Binding AmountString, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                         helpers:TextBoxHelper.CornerRadius="0 20 20 0"
+                         helpers:AmountTextBoxHelper.CurrencyCode="{Binding CurrencyCode}"
+                         helpers:AmountTextBoxHelper.BaseCurrencyCode="{Binding BaseCurrencyCode}"
+                         Style="{StaticResource AmountTextBox}">
+                    <helpers:AmountTextBoxHelper.AmountInBase>
+                        <MultiBinding Converter="{StaticResource AmountToStringConverter}">
+                            <Binding Path="AmountInBase" Mode="OneWay"/>
+                            <Binding Path="BaseCurrencyFormat" Mode="OneWay"/>
+                        </MultiBinding>
+                    </helpers:AmountTextBoxHelper.AmountInBase>
 
-                <i:Interaction.Behaviors>
-                    <behaviors:TextBoxInputBehavior InputMode="DecimalInput"
-                                                    UseInvariantCulture="True"
-                                                    JustPositiveDecimalInput="True"/>
-                </i:Interaction.Behaviors>
-            </TextBox>
-        </StackPanel>
+                    <i:Interaction.Behaviors>
+                        <behaviors:TextBoxInputBehavior InputMode="DecimalInput"
+                                                        UseInvariantCulture="True"
+                                                        JustPositiveDecimalInput="True"/>
+                    </i:Interaction.Behaviors>
+                </TextBox>
+            </StackPanel>
 
-        <StackPanel Orientation="Horizontal"
-                    HorizontalAlignment="Center"
-                    IsEnabled="{Binding UseDefaultFee, Converter={StaticResource InverseBooleanConverter}}"
-                    Visibility="{Binding UseFeePrice, Converter={StaticResource BoolToVisibilityConverter}}"
-                    Style="{StaticResource BaseDisabledStyle}">
-            <Border Style="{StaticResource FieldHeader}">
-                <TextBlock Text="Gas price:"
-                           Margin="0 0 7 0"
-                           Foreground="{StaticResource DefaultForegroundBrush}"
-                           FontFamily="{StaticResource RobotoMedium}"
-                           FontSize="13"
-                           VerticalAlignment="Center"
-                           HorizontalAlignment="Right"/>
-            </Border>
+            <StackPanel Orientation="Horizontal"
+                        HorizontalAlignment="Center"
+                        IsEnabled="{Binding UseDefaultFee, Converter={StaticResource InverseBooleanConverter}}"
+                        Visibility="{Binding UseFeePrice, Converter={StaticResource BoolToVisibilityConverter}}"
+                        Style="{StaticResource BaseDisabledStyle}">
+                <Border Style="{StaticResource FieldHeader}">
+                    <TextBlock Text="Gas price:"
+                               Margin="0 0 7 0"
+                               Foreground="{StaticResource DefaultForegroundBrush}"
+                               FontFamily="{StaticResource RobotoMedium}"
+                               FontSize="13"
+                               VerticalAlignment="Center"
+                               HorizontalAlignment="Right"/>
+                </Border>
 
-            <TextBox Width="380"
-                     Height="40"
-                     Margin="0 5 0 5"
-                     FontSize="18"
-                     Text="{Binding FeePriceString, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
-                     Background="{StaticResource DefaultSubstrateBrush}"
-                     Foreground="{StaticResource DefaultForegroundBrush}"
-                     helpers:TextBoxHelper.CornerRadius="0 20 20 0"
-                     helpers:AmountTextBoxHelper.CurrencyCode="{Binding FeePriceCode}"
-                     Style="{StaticResource AmountTextBox}">
-                <i:Interaction.Behaviors>
-                    <behaviors:TextBoxInputBehavior InputMode="DecimalInput"
-                                                    UseInvariantCulture="True"
-                                                    JustPositiveDecimalInput="True"/>
-                </i:Interaction.Behaviors>
-            </TextBox>
-        </StackPanel>
+                <TextBox Width="380"
+                         Height="40"
+                         Margin="0 5 0 5"
+                         FontSize="18"
+                         Text="{Binding FeePriceString, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                         Background="{StaticResource DefaultSubstrateBrush}"
+                         Foreground="{StaticResource DefaultForegroundBrush}"
+                         helpers:TextBoxHelper.CornerRadius="0 20 20 0"
+                         helpers:AmountTextBoxHelper.CurrencyCode="{Binding FeePriceCode}"
+                         Style="{StaticResource AmountTextBox}">
+                    <i:Interaction.Behaviors>
+                        <behaviors:TextBoxInputBehavior InputMode="DecimalInput"
+                                                        UseInvariantCulture="True"
+                                                        JustPositiveDecimalInput="True"/>
+                    </i:Interaction.Behaviors>
+                </TextBox>
+            </StackPanel>
 
-        <StackPanel Orientation="Horizontal"
-                    HorizontalAlignment="Center"
-                    IsEnabled="{Binding UseDefaultFee, Converter={StaticResource InverseBooleanConverter}}"
-                    Style="{StaticResource BaseDisabledStyle}">
-            <Border Style="{StaticResource FieldHeader}">
-                <TextBlock Text="{Binding FeeName}"
-                           Margin="0 0 7 0"
-                           Foreground="{StaticResource DefaultForegroundBrush}"
-                           FontFamily="{StaticResource RobotoMedium}"
-                           FontSize="13"
-                           VerticalAlignment="Center"
-                           HorizontalAlignment="Right"/>
-            </Border>
+            <StackPanel Orientation="Horizontal"
+                        HorizontalAlignment="Center"
+                        IsEnabled="{Binding UseDefaultFee, Converter={StaticResource InverseBooleanConverter}}"
+                        Style="{StaticResource BaseDisabledStyle}">
+                <Border Style="{StaticResource FieldHeader}">
+                    <TextBlock Text="{Binding FeeName}"
+                               Margin="0 0 7 0"
+                               Foreground="{StaticResource DefaultForegroundBrush}"
+                               FontFamily="{StaticResource RobotoMedium}"
+                               FontSize="13"
+                               VerticalAlignment="Center"
+                               HorizontalAlignment="Right"/>
+                </Border>
 
-            <TextBox Width="380"
-                     Height="40"
-                     Margin="0 5 0 5"
-                     FontSize="18"
-                     Background="{StaticResource DefaultSubstrateBrush}"
-                     Foreground="{StaticResource DefaultForegroundBrush}"
-                     Text="{Binding FeeString, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
-                     helpers:TextBoxHelper.CornerRadius="0 20 20 0"
-                     helpers:AmountTextBoxHelper.CurrencyCode="{Binding FeeCurrencyCode}"
-                     helpers:AmountTextBoxHelper.BaseCurrencyCode="{Binding BaseCurrencyCode}"
-                     Style="{StaticResource AmountTextBox}">
-                <helpers:AmountTextBoxHelper.AmountInBase>
-                    <MultiBinding Converter="{StaticResource AmountToStringConverter}">
-                        <Binding Path="FeeInBase" Mode="OneWay"/>
-                        <Binding Path="BaseCurrencyFormat" Mode="OneWay"/>
-                    </MultiBinding>
-                </helpers:AmountTextBoxHelper.AmountInBase>
-                <i:Interaction.Behaviors>
-                    <behaviors:TextBoxInputBehavior InputMode="DecimalInput"
-                                                    UseInvariantCulture="True"
-                                                    JustPositiveDecimalInput="True"/>
-                </i:Interaction.Behaviors>
-            </TextBox>
-        </StackPanel>
+                <TextBox Width="380"
+                         Height="40"
+                         Margin="0 5 0 5"
+                         FontSize="18"
+                         Background="{StaticResource DefaultSubstrateBrush}"
+                         Foreground="{StaticResource DefaultForegroundBrush}"
+                         Text="{Binding FeeString, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                         helpers:TextBoxHelper.CornerRadius="0 20 20 0"
+                         helpers:AmountTextBoxHelper.CurrencyCode="{Binding FeeCurrencyCode}"
+                         helpers:AmountTextBoxHelper.BaseCurrencyCode="{Binding BaseCurrencyCode}"
+                         Style="{StaticResource AmountTextBox}">
+                    <helpers:AmountTextBoxHelper.AmountInBase>
+                        <MultiBinding Converter="{StaticResource AmountToStringConverter}">
+                            <Binding Path="FeeInBase" Mode="OneWay"/>
+                            <Binding Path="BaseCurrencyFormat" Mode="OneWay"/>
+                        </MultiBinding>
+                    </helpers:AmountTextBoxHelper.AmountInBase>
+                    <i:Interaction.Behaviors>
+                        <behaviors:TextBoxInputBehavior InputMode="DecimalInput"
+                                                        UseInvariantCulture="True"
+                                                        JustPositiveDecimalInput="True"/>
+                    </i:Interaction.Behaviors>
+                </TextBox>
+            </StackPanel>
 
-        <mah:ToggleSwitch IsChecked="{Binding UseDefaultFee}"
-                          HorizontalAlignment="Center"
-                          OffLabel="Use default fee"
-                          OnLabel="Use default fee"
-                          FontFamily="{StaticResource RobotoLight}"
-                          FontSize="13"
-                          Margin="10"
-                          Style="{StaticResource MahApps.Metro.Styles.ToggleSwitch.Win10}"/>
+            <mah:ToggleSwitch IsChecked="{Binding UseDefaultFee}"
+                              HorizontalAlignment="Center"
+                              OffLabel="Use default fee"
+                              OnLabel="Use default fee"
+                              FontFamily="{StaticResource RobotoLight}"
+                              FontSize="13"
+                              Margin="10"
+                              Style="{StaticResource MahApps.Metro.Styles.ToggleSwitch.Win10}"/>
 
-        <TextBlock Text="{Binding Warning}"
-                   Foreground="{StaticResource WarningForegroundBrush}"
-                   FontFamily="{StaticResource RobotoLight}"
-                   FontSize="13"
-                   Margin="20 5 20 0"
-                   TextWrapping="Wrap"
-                   HorizontalAlignment="Center"
-                   VerticalAlignment="Bottom"/>
+            <TextBlock Text="{Binding Warning}"
+                       Foreground="{StaticResource WarningForegroundBrush}"
+                       FontFamily="{StaticResource RobotoLight}"
+                       FontSize="13"
+                       Margin="20 5 20 0"
+                       TextWrapping="Wrap"
+                       HorizontalAlignment="Center"
+                       VerticalAlignment="Bottom"/>
 
-        <StackPanel Orientation="Horizontal"
-                    HorizontalAlignment="Center"
-                    Margin="0 20 0 20">
-            <controls:RoundedButton Width="100"
-                                    Height="40"
-                                    Margin="0 0 3 0"
-                                    CornerRadius="20 0 0 20"
-                                    Content="Cancel"
-                                    Command="{Binding BackCommand}"/>
-            <controls:RoundedButton Width="100"
-                                    Height="40"
-                                    CornerRadius="0 20 20 0"
-                                    Content="Send"
-                                    Command="{Binding NextCommand}"/>
+            <StackPanel Orientation="Horizontal"
+                        HorizontalAlignment="Center"
+                        Margin="0 20 0 20">
+                <controls:RoundedButton Width="100"
+                                        Height="40"
+                                        Margin="0 0 3 0"
+                                        CornerRadius="20 0 0 20"
+                                        Content="Cancel"
+                                        Command="{Binding BackCommand}"/>
+                <controls:RoundedButton Width="100"
+                                        Height="40"
+                                        CornerRadius="0 20 20 0"
+                                        Content="Send"
+                                        Command="{Binding NextCommand}"/>
+            </StackPanel>
         </StackPanel>
-    </StackPanel>
+    </Grid>
 </Page>
\ No newline at end of file