Fix possible System.Windows.Data warning for ComboBoxItem, if a Combo…

…Box is inside a ContentControl. System.Windows.Data Warning: 4 : Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='System.Windows.Controls.ComboBox', AncestorLevel='1''. BindingExpression:Path=(0); DataItem=null; target element is 'ComboBoxItem' (Name=''); target property is 'ClearTypeHint' (type 'ClearTypeHint')
MahApps · Aug 30, 2017 · 44c2363 · 44c2363
1 parent 6c936c2
commit 44c2363
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/MahApps.Metro/MahApps.Metro/Styles/Controls.ComboBox.xaml b/src/MahApps.Metro/MahApps.Metro/Styles/Controls.ComboBox.xaml
@@ -604,7 +604,6 @@
         <Setter Property="HorizontalContentAlignment" Value="Left" />
         <Setter Property="MinHeight" Value="22" />
         <Setter Property="Padding" Value="2" />
-        <Setter Property="RenderOptions.ClearTypeHint" Value="{Binding Path=(RenderOptions.ClearTypeHint), Mode=OneWay, FallbackValue=Auto, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ComboBox}}}" />
         <Setter Property="SnapsToDevicePixels" Value="True" />
         <Setter Property="Template">
             <Setter.Value>
@@ -643,6 +642,11 @@
             </Setter.Value>
         </Setter>
         <Setter Property="VerticalContentAlignment" Value="Center" />
+        <Style.Triggers>
+            <Trigger Property="IsVisible" Value="True">
+                <Setter Property="RenderOptions.ClearTypeHint" Value="{Binding Path=(RenderOptions.ClearTypeHint), FallbackValue=Auto, RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type ComboBox}}}" />
+            </Trigger>
+        </Style.Triggers>
     </Style>
 
 </ResourceDictionary>