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ICommand.CanExecute : | <'a -> bool> ISignal | 'a -> bool #23

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kleidemos opened this issue Mar 9, 2019 · 1 comment
Open

ICommand.CanExecute : | <'a -> bool> ISignal | 'a -> bool #23

kleidemos opened this issue Mar 9, 2019 · 1 comment
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@kleidemos
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I want to be able to define commands that can only be executed when parameter is valid.
At the moment I need to create a new command for each case / parameter source.

In WPF changing CommandParameter does not call Command.CanExecute when ICommand does not use CommandManager.RequerySuggested for ICommand.CanExecuteChanged.
This means that we need a separate implementation for ICommand.

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@FoggyFinder
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@kleidemos if you are still here can you create a PR?

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@FoggyFinder @kleidemos