UserControl.Session プロパティ

2007-06-26

現在の Web 要求に対する HttpSessionState オブジェクトを取得します。

名前空間: System.Web.UI
アセンブリ: System.Web (system.web.dll 内)

構文

'宣言
Public ReadOnly Property Session As HttpSessionState
'使用
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

適用できません。

プロパティ値

UserControl インスタンスを格納している Page に関連付けられた HttpSessionState オブジェクト。

使用例

ユーザーコントロールの Session プロパティに値を追加する例を次に示します。myControl.Session.Add 構文が、ユーザーコントロールとそのページに関連付けられているセッションに、2 つの TextBox Web サーバーコントロールの値を挿入しています。

' 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

プラットフォーム

Windows 98,Windows Server 2000 SP4,Windows CE,Windows Millennium Edition,Windows Mobile for Pocket PC,Windows Mobile for Smartphone,Windows Server 2003,Windows XP Media Center Edition,Windows XP Professional x64 Edition,Windows XP SP2,Windows XP Starter Edition

Microsoft .NET Framework 3.0 は Windows Vista,Microsoft Windows XP SP2,および Windows Server 2003 SP1 でサポートされています。

バージョン情報

.NET Framework

サポート対象 : 3.0,2.0,1.1,1.0

参照

その他の技術情報

ASP.NET Web アプリケーションのページとアプリケーションコンテキスト