WebPart.OnUnload Method
The event handler for the System.Web.UI.Control.Unload event, which occurs when the Web Part is being unloaded from memory.
Namespace: Microsoft.SharePoint.WebPartPages
Assembly: Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Available in Sandboxed Solutions: No
Syntax
'Declaration
Protected Overrides Sub OnUnload ( _
e As EventArgs _
)
'Usage
Dim e As EventArgs
Me.OnUnload(e)
protected override void OnUnload(
EventArgs e
)
Parameters
e
Type: System.EventArgsA System.EventArgs object that contains data for the System.Web.UI.Control.Unload event.
Remarks
If your Web Part needs to perform any final cleanup before closing, such as closing files, closing database connections, and discarding objects, you can subscribe to the System.Web.UI.Control.Unload event by adding an appropriate event handler to the Web Part constructor. For example:
this.Unload += new EventHandler (MyUnloadHandler);