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.NET Framework Class Library

Control.Dispose Method

Enables a server control to perform final clean up before it is released from memory.

Namespace:  System.Web.UI
Assembly:  System.Web (in System.Web.dll)
Public Overridable Sub Dispose



Call Dispose when you are finished using the Control. The Dispose method leaves the Control in an unusable state. After calling this method, you must release all references to the control so the memory it was occupying can be reclaimed by garbage collection.

The following code example overrides the Dispose method to close the HtmlTextWriter object associated with a control, and call the Dispose method on a Button control, named myButton. If an Exception is thrown when this version of the Dispose method is called, the control writes a message to the current HttpResponse object.

Public Overrides Sub Dispose()
      Context.Response.Write("Disposing " & ToString())
      ' Perform resource cleanup.
   Catch myException As Exception
      Context.Response.Write("Exception occurred: " & myException.Message)
   End Try 
End Sub

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.