TreeView.OnAfterCollapse(TreeViewEventArgs) Method


Raises the AfterCollapse event.

protected public:
 virtual void OnAfterCollapse(System::Windows::Forms::TreeViewEventArgs ^ e);
 virtual void OnAfterCollapse(System::Windows::Forms::TreeViewEventArgs ^ e);
protected internal virtual void OnAfterCollapse (System.Windows.Forms.TreeViewEventArgs e);
protected virtual void OnAfterCollapse (System.Windows.Forms.TreeViewEventArgs e);
abstract member OnAfterCollapse : System.Windows.Forms.TreeViewEventArgs -> unit
override this.OnAfterCollapse : System.Windows.Forms.TreeViewEventArgs -> unit
Protected Friend Overridable Sub OnAfterCollapse (e As TreeViewEventArgs)
Protected Overridable Sub OnAfterCollapse (e As TreeViewEventArgs)



A TreeViewEventArgs that contains the event data.


Raising an event invokes the event handler through a delegate. For more information, see Handling and Raising Events.

The OnAfterCollapse method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors

When overriding OnAfterCollapse(TreeViewEventArgs) in a derived class, be sure to call the base class's OnAfterCollapse(TreeViewEventArgs) method so that registered delegates receive the event.

Applies to

See also