Page.RegisterViewStateHandler Méthode

Définition

Espace de noms:

System.Web.UI

Assembly:

System.Web.dll

En cas d'appel, rend persistant l'état d'affichage de la page.

public:
 void RegisterViewStateHandler();

public void RegisterViewStateHandler ();

member this.RegisterViewStateHandler : unit -> unit

Public Sub RegisterViewStateHandler ()

Exemples

// 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.
      Page.RegisterViewStateHandler();
   }
}

' Create a custom HtmlForm server control named MyForm.
Public Class MyForm
   Inherits HtmlForm
   
   ' MyForm inherits all the base funcitionality
   ' of the HtmlForm control.
   Public Sub New()
   End Sub
   
   ' Override the OnInit method that MyForm inherited from HtmlForm.
   <System.Security.Permissions.PermissionSetAttribute(System.Security.Permissions.SecurityAction.Demand, Name:="FullTrust")> _
   Protected Overrides Sub OnInit(e As EventArgs)
      ' Save the view state if there are server controls on
      ' a page that calls MyForm.
      Page.RegisterViewStateHandler()
   End Sub
End Class

Remarques

La RegisterViewStateHandler méthode est appelée automatiquement par le biais du HtmlForm contrôle serveur. Si cette méthode n’est pas appelée, l’état d’affichage de page n’est pas conservé.

Notes

En règle générale, seul le HtmlForm contrôle serveur de la page appelle cette méthode.

Voir aussi

• RegisterRequiresViewStateEncryption()