Fires the beforeCheck event.
[Visual Basic] Overridable Protected Sub OnBeforeCheck( _ ByVal e As TreeViewCancelEventArgs _ ) [C#] protected virtual void OnBeforeCheck( TreeViewCancelEventArgs e ); [C++] protected: virtual void OnBeforeCheck( TreeViewCancelEventArgs* e ); [JScript] protected function OnBeforeCheck( e : TreeViewCancelEventArgs );
TreeView Class | TreeView Members | System.WinForms Namespace