.NET Framework Class Library
ControlDispose 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)
Syntax
Public Overridable Sub Dispose
public virtual void Dispose()
public:
virtual void Dispose()
abstract Dispose : unit -> unit  
override Dispose : unit -> unit

Implements

IDisposableDispose
Remarks

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.

Examples

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()
   Try
      Context.Response.Write("Disposing " & ToString())
      ' Perform resource cleanup.
      myTextWriter.Close()
      myButton.Dispose()
   Catch myException As Exception
      Context.Response.Write("Exception occurred: " & myException.Message)
   End Try 
End Sub
public override void Dispose()
{
   try
   {
      Context.Response.Write("Disposing " + ToString());
      // Perform resource cleanup.
      myTextWriter.Close();
      myButton.Dispose();
   }
   catch(Exception myException)
   {
      Context.Response.Write("Exception occurred: "+myException.Message);
   }
}
Version Information

.NET Framework

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

Windows Phone 8.1, Windows Phone 8, 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.