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Page.RegisterViewStateHandler Method

Causes page view state to be persisted, if called.

Namespace:  System.Web.UI
Assembly:  System.Web (in System.Web.dll)

public void RegisterViewStateHandler()

The RegisterViewStateHandler method is automatically called through the HtmlForm server control. If this method is not invoked, the page view state will not be persisted.


Typically, only the HtmlForm server control for the page calls this method.

// Create a custom HtmlForm server control named MyForm.  
public class MyForm : HtmlForm
   // MyForm inherits all the base funcitionality 
   // of the HtmlForm control. 
   public MyForm():base()
   // Override the OnInit method that MyForm inherited from HtmlForm.

   [System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand, Name="FullTrust")] 
   protected override void OnInit( EventArgs e)
      // Save the view state if there are server controls on 
      // a page that calls MyForm.

.NET Framework

Supported in: 4.6, 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.

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