Redraw single row

[kdkavanagh]

Is there a way to force the table to re-render a single (specified) row? Usecase is that I'm keeping track of rows that a user "bookmarks", and would like to apply a custom style to those rows. The style is currently applied by overriding get_row_style, which is called after a couple of layers of caching. Is there an easy way to either clear a specific row from those caches, or to force-recompute a single row?

[tconbeer]

Not today, no. I think if bookmarking is relatively infrequent, I would just blow away the caches entirely.

If you wanted to implement this, you could pull out the logic to compute the row cache key, and then delete that key from the cache:

textual-fastdatatable/src/textual_fastdatatable/data_table.py

Lines 2035 to 2049 in 739a8ee

	cache_key = (
	row_index,
	line_no,
	col1,
	col2,
	base_style,
	cursor_location,
	hover_location,
	selection_anchor_location,
	cursor_type,
	show_cursor,
	self._show_hover_cursor,
	self._update_count,
	self._pseudo_class_state,
	)

The tricky part is that you actually need to delete a whole bunch of records in the row cache, since there may be multiple cache entries with different cursor positions, etc. Hence, I think it's probably better to just delete the cache entirely.