Own commands for "Text Highlight Color" and "Font Color" buttons

Hello,

Please see the RichTextBoxExtended file's OnApplyBackgroundCanExecute and OnApplyBackgroundExecute methods as those basically are what process that command.  The RichTextBoxExtended constructor sets them up with:

this.CommandBindings.Add(new CommandBinding(ApplicationCommands.ApplyBackground,
  OnApplyBackgroundExecute, OnApplyBackgroundCanExecute));

Then you can see how the one method calls a UpdateApplyDefaultBackgroundSmallImageSource method in that code as well.  That is what updates the image source to fill in the box in TextHighlightColor16.png.

Hello,

I have done in similar way as you adviced. The splitbutton is created dynamically in code, The command for that is set as in the sample, but in the ApplyForegroundExecute I get for e.Parameter not BrushValueCommandParameter but ICheckableCommandParameter. How can I set the BrushValueCommandParameter when creating the splitbutton dynamically? Or am I missing something else?

        public static void ApplyForegroundExecute(object target, ExecutedRoutedEventArgs e)
        {
            GcSpreadSheet spreadSheet = target as GcSpreadSheet;
            if (spreadSheet == null) return;

            BrushValueCommandParameter parameter = e.Parameter as BrushValueCommandParameter;

The splitbutton is created this way:

                                ColorPicker colorPicker = new ColorPicker();
                                SplitButton splitButton = new SplitButton
                                {
                                    Id = commandModel.Id,
                                    ImageSourceLarge = renderTargetBitmap,
                                    ImageSourceSmall = renderTargetBitmap,
                                    Command = commandModel.Command,
                                    //CommandParameter = new BrushValueCommandParameter(), // not helped
                                    Label = commandModel.Caption,
                                    PopupContent = colorPicker
                                };

Hello,

I would expect the uncommented line you had to work in general.  There is code in SplitButton to coerce the CommandParameter property to be a CheckbableCommandParameter if there is no CommandParameter set.  But otherwise, it should use whatever value you set.  Perhaps try setting the property after the other properties are all set, in a separate line, and see what the result of the CommandParameter property is after it's set.