How to change the background color of selected rows in treelistview?

[YunFan]

        <Style TargetType="telerik:TreeListViewRow">
            <Setter Property="SelectedBackground" Value="Red"/>
        </Style>

I set the SelectedBackground property, but it didn't work. I hope you can tell me what to do?

[Stenly]

Hello YunFan,

May I ask if you could share a bit more information about this case? More specifically, what is the used theme on your end? This way, I will review the default style for the TreeListViewRow for the theme that you use and share possible solutions for achieving the desired behavior.

[YunFan]

The theme is CrystalTheme and the version is 2022.2.511.60

[Stenly]

Hello YunFan,

For the Crystal theme, the selected color of the TreeListViewRow element is controlled by the MaterialAssist.CheckedBrush attached property.

With this in mind, to change the selected color, create a new Style with TargetType="TreeListViewRow" and add a new Setter for the MaterialAssist.CheckedBrush property and set it to the desired color.

The namespace for the MaterialAssist class is as follows:

xmlns:mat="clr-namespace:Telerik.Windows.Controls.MaterialControls;assembly=Telerik.Windows.Controls"

The following code snippet shows this suggestion's implementation:

<!--If NoXaml assemblies version is used: BasedOn="{StaticResource TreeListViewRowStyle}"-->
<Style TargetType="telerik:TreeListViewRow">
    <Setter Property="mat:MaterialAssist.CheckedBrush" Value="red"/>
</Style>

The following code snippet shows the produced result:

I hope the provided information will be of help to you.