UserControl.Session-Eigenschaft

Ruft das HttpSessionState-Objekt für die aktuelle Webanforderung ab.

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

Syntax

'Declaration
Public ReadOnly Property Session As HttpSessionState
'Usage
Dim instance As UserControl
Dim value As HttpSessionState

value = instance.Session

public HttpSessionState Session { get; }

public:
property HttpSessionState^ Session {
    HttpSessionState^ get ();
}

/** @property */
public HttpSessionState get_Session ()

public function get Session () : HttpSessionState

Eigenschaftenwert

Das HttpSessionState-Objekt, das der Page mit der UserControl-Instanz zugeordnet ist.

Beispiel

Im folgenden Beispiel werden der Session-Eigenschaft eines Benutzersteuerelements Werte hinzugefügt. Durch die myControl.Session.Add-Syntax werden die Werte zweier TextBox-Webserver-Steuerelemente der Sitzung hinzugefügt, die mit dem Benutzersteuerelement und der enthaltenden Seite verknüpft ist.

' Saves state information which is used by display handler after the postback has occured.

Sub SubmitBtn_Click(Sender As Object, e As EventArgs) 

    ' Clear all values from session state of 'Page'.
    Session.Clear()

    ' Populate Session State of UserControl with the values entered by user.
    myControl.Session.Add("username",myControl.user.Text)
    myControl.Session.Add("password",myControl.password.Text)

    ' Add UserControl state to the SessionState object of Page.
    Session(myControl.user.Text)= myControl
    Display.Enabled = true
End Sub

Sub Display_Click(Sender As Object,e As EventArgs)

    Dim position As Integer = Session.Count - 1

    ' Extract stored UserControl from the session state of page.
    Dim tempControl As LogOnControl = CType(Session(Session.Keys(position)),LogOnControl)

    ' Use SessionState of UserControl to display previously typed information.
    txtSession.Text = "<br><br>User:" + tempControl.Session("username") + "<br>Password : " + tempControl.Session("password")
    Display.Enabled = false
End Sub

// Save state information which is used by display handler after the postback has occured.
void SubmitBtn_Click(Object sender, EventArgs e) 
{
  // Clear all values from session state of 'Page'.
  Session.Clear();

  // Populate Session State of UserControl with the values entered by user.
  myControl.Session.Add("username",myControl.user.Text);
  myControl.Session.Add("password",myControl.password.Text);

  // Add UserControl state to the SessionState object of Page.
  Session[myControl.user.Text]= myControl;
  display.Enabled = true;
}

void Display_Click(Object sender, EventArgs e)
{
  int position = Session.Count - 1;

  // Extract stored UserControl from the session state of page.
  LogOnControl tempControl = (LogOnControl)Session[Session.Keys[position]];

  // Use SessionState of UserControl to display previously typed information.
  txtSession.Text = "<br><br>User:" + tempControl.Session["username"] + "<br>Password : " + tempControl.Session["password"];
  display.Enabled = false;
}

// Save state information which is used by display handler after the
// postback has occured.
void SubmitBtn_Click(Object sender, EventArgs e) 
{
    // Clear all values from session state of 'Page'.
    get_Session().Clear();
    // Populate Session State of UserControl with the values entered by user.
    myControl.get_Session().Add("username",myControl.user.get_Text());
    myControl.get_Session().Add("password",myControl.password.get_Text());
    // Add UserControl state to the SessionState object of Page.
    get_Session() .set_Item( myControl.user.get_Text() , myControl );
    display.set_Enabled(true);
} //SubmitBtn_Click

void Display_Click(Object sender, EventArgs e)
{
    int position = get_Session().get_Count() - 1;
    // Extract stored UserControl from the session state of page.
    LogOnControl tempControl = (LogOnControl)(get_Session().get_Item(
        get_Session().get_Keys().get_Item(position)));
    // Use SessionState of UserControl to display previously typed
    // information.
    txtSession.set_Text("<br><br>User:" 
        + tempControl.get_Session().get_Item("username") + "<br>Password : "
        + tempControl.get_Session().get_Item("password"));
    display.set_Enabled(false);
} //Display_Click

Plattformen

Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

.NET Framework unterstützt nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen.

Versionsinformationen

.NET Framework

Unterstützt in: 2.0, 1.1, 1.0

Siehe auch

Referenz

UserControl-Klasse
UserControl-Member
System.Web.UI-Namespace
Page.Session-Eigenschaft
HttpSessionState-Klasse

Weitere Ressourcen

Seiten- und Anwendungskontext in ASP.NET-Webanwendungen