Fix for CaretBrush in editable ComboBoxes (#2960)

Co-authored-by: Marton Krauter <[email protected]>

Author: mkrauter

MaterialDesignThemes.Wpf/Themes/MaterialDesignTheme.ComboBox.xaml

@@ -355,7 +355,7 @@
                          MinWidth="10"
                          HorizontalAlignment="Stretch"
                          HorizontalContentAlignment="Stretch"
-                         CaretBrush="{TemplateBinding BorderBrush}"
+                         CaretBrush="{TemplateBinding Foreground}"
                          IsReadOnly="{TemplateBinding IsReadOnly}"
                          MaxLength="{Binding Path=(wpf:ComboBoxAssist.MaxLength), RelativeSource={RelativeSource Mode=TemplatedParent}}"
                          Style="{StaticResource MaterialDesignComboBoxEditableTextBox}"
@@ -1013,4 +1013,4 @@
     </Grid>
   </ControlTemplate>
 
-</ResourceDictionary>
+</ResourceDictionary>

MaterialDesignThemes.Wpf/Themes/MaterialDesignTheme.DataGrid.ComboBox.xaml

@@ -299,7 +299,6 @@
       </Setter.Value>
     </Setter>
     <Setter Property="wpf:TextFieldAssist.TextBoxViewMargin" Value="{x:Static wpf:Constants.DefaultTextBoxViewMarginEmbedded}" />
-    <Setter Property="CaretBrush" Value="{Binding RelativeSource={RelativeSource AncestorType={x:Type FrameworkElement}}, Path=(TextElement.Foreground)}" />
   </Style>
 
   <ControlTemplate x:Key="MaterialDesignDataGridComboBoxEditableTemplate" TargetType="{x:Type ComboBox}">
@@ -379,6 +378,7 @@
                    HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
                    VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
                    IsReadOnly="{Binding IsReadOnly, RelativeSource={RelativeSource TemplatedParent}}"
+                   CaretBrush="{TemplateBinding Foreground}"
                    Style="{StaticResource MaterialDesignDataGridComboBoxEditableTextBox}" />
         </Grid>
       </Border>