SessionStateUtility.RemoveHttpSessionStateFromContext(HttpContext) Metode

Definisi

Ruang nama:

System.Web.SessionState

Rakitan:

System.Web.dll

Menghapus data sesi dari konteks yang ditentukan.

public:
 static void RemoveHttpSessionStateFromContext(System::Web::HttpContext ^ context);

public static void RemoveHttpSessionStateFromContext (System.Web.HttpContext context);

static member RemoveHttpSessionStateFromContext : System.Web.HttpContext -> unit

Public Shared Sub RemoveHttpSessionStateFromContext (context As HttpContext)

Parameter

context

HttpContext

tempat HttpContext untuk menghapus data sesi.

Contoh

Contoh kode berikut menunjukkan handler untuk ReleaseRequestState peristiwa dalam modul keadaan sesi kustom. Penanganan aktivitas menghapus data sesi dari saat ini HttpContext. Contoh kode ini adalah bagian dari contoh yang lebih besar yang disediakan untuk SessionStateUtility kelas .

//
// Event handler for HttpApplication.ReleaseRequestState
//

private void OnReleaseRequestState(object source, EventArgs args)
{
    HttpApplication app = (HttpApplication)source;
    HttpContext context = app.Context;
    string sessionID;

    // Read the session state from the context
    HttpSessionStateContainer stateProvider =
      (HttpSessionStateContainer)(SessionStateUtility.GetHttpSessionStateFromContext(context));

    // If Session.Abandon() was called, remove the session data from the local Hashtable
    // and execute the Session_OnEnd event from the Global.asax file.
    if (stateProvider.IsAbandoned)
    {
        try
        {
            pHashtableLock.AcquireWriterLock(Int32.MaxValue);

            sessionID = pSessionIDManager.GetSessionID(context);
            pSessionItems.Remove(sessionID);
        }
        finally
        {
            pHashtableLock.ReleaseWriterLock();
        }

        SessionStateUtility.RaiseSessionEnd(stateProvider, this, EventArgs.Empty);
    }

    SessionStateUtility.RemoveHttpSessionStateFromContext(context);
}

'
' Event handler for HttpApplication.ReleaseRequestState
'
Private Sub OnReleaseRequestState(ByVal [source] As Object, ByVal args As EventArgs)
    Dim app As HttpApplication = CType([source], HttpApplication)
    Dim context As HttpContext = app.Context
    Dim sessionID As String

    ' Read the session state from the context
    Dim stateProvider As HttpSessionStateContainer = _
       CType(SessionStateUtility.GetHttpSessionStateFromContext(context), HttpSessionStateContainer)

    ' If Session.Abandon() was called, remove the session data from the local Hashtable
    ' and execute the Session_OnEnd event from the Global.asax file.
    If stateProvider.IsAbandoned Then
        Try
            pHashtableLock.AcquireWriterLock(Int32.MaxValue)

            sessionID = pSessionIDManager.GetSessionID(context)
            pSessionItems.Remove(sessionID)
        Finally
            pHashtableLock.ReleaseWriterLock()
        End Try

        SessionStateUtility.RaiseSessionEnd(stateProvider, Me, EventArgs.Empty)
    End If

  SessionStateUtility.RemoveHttpSessionStateFromContext(context)
End Sub

Keterangan

Metode RemoveHttpSessionStateFromContext menghapus data sesi dari yang ditentukan HttpContext. Modul keadaan sesi akan memanggil RemoveHttpSessionStateFromContext metode di handler untuk peristiwa tersebut ReleaseRequestState .