Assembly: Microsoft.SharePoint (in Microsoft.SharePoint.dll)
The default implementation only calls the base OnUnload(EventArgs) method.
Do not call this method from your own code. The Microsoft SharePoint Foundation mobile adaption framework will call it as part of the UnLoad() event handling.Notes to inheritors
Override this method when you need additional loading behavior for the control when it is used on a mobile device.
Your override must always call the base adapter class’s OnUnload(EventArgs) method to ensure that the UnLoad() event of the control that is being adapted is raised.