Find a control in RowDetailsTemplate

Updated on Sep 24, 2025

This article demonstrates how to find a control which is placed in the DataTemplate of the RowDetailsTemplate.

Let assume that you have a control (RadComboBox) in the RowDetailsTemplate which you need to set some properties at runtime:

XAML

	<telerik:RadGridView.RowDetailsTemplate>
	    <DataTemplate>
	        <StackPanel>
	            <telerik:RadComboBox Name="rcbCountries" />
	            <!-- some other controls here -->
	        </StackPanel>
	    </DataTemplate>
	</telerik:RadGridView.RowDetailsTemplate>

The best way to do this is to subscribe to the LoadingRowDetails event and find the control there:

XAML

	<telerik:RadGridView Name="gridView" 
	ItemsSource="{Binding Source={StaticResource itemsList}}"
	LoadingRowDetails="gridView_LoadingRowDetails"
	RowDetailsVisibilityMode="VisibleWhenSelected">

In the LoadingRowDetails event handler use the FindName method of the e.DetailsElement:

C#

	private void gridView_LoadingRowDetails(object sender, GridViewRowDetailsEventArgs e)
	{
	    RadComboBox countries = e.DetailsElement.FindName("rcbCountries") as RadComboBox;
	    countries.ItemsSource = GetCountries();
	}

VB.NET

	Private Sub gridView_LoadingRowDetails(sender As Object, e As GridViewRowDetailsEventArgs)
	    Dim countries As RadComboBox = TryCast(e.DetailsElement.FindName("rcbCountries"), RadComboBox)
	    countries.ItemsSource = GetCountries()
	End Sub

See Also

• RowDetails - Overview