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Allow Hit Test on Controls in the Header

Updated on Sep 15, 2025

By default RadWindow handles the mouse events for the elements defined in its header, which excludes them from the hit testing.

This means that placing input controls like TextBox or Button won't react to the mouse events. To change this behavior, set the WindowHost.HitTestable attached property on the corresponding element to true.

Set the WindowHost.HitTestable property

XAML
	<telerik:RadWindow.Header>
		<TextBox Text="{Binding Text}" telerik:WindowHost.HitTestable="True" />
 	<telerik:RadWindow.Header>

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