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RadToggleButtonPreviewClick Event
Occurs when the content will be Clicked. If the event handler set True for the Handled property then the button will not be clicked.

Namespace: Telerik.Windows.Controls
Assembly: Telerik.Windows.Controls (in Telerik.Windows.Controls.dll) Version: 2018.1.220.40 (2018.1.220.40)
Syntax
public event RoutedEventHandler PreviewClick

Value

Type: System.WindowsRoutedEventHandler
See Also