http://nfex.ru/index.php?action=history&feed=atom&title=ASP.NET_Tutorial%2FSessions%2FSession_class
ASP.NET Tutorial/Sessions/Session class - История изменений
2026-04-29T22:36:04Z
История изменений этой страницы в вики
MediaWiki 1.30.0
http://nfex.ru/index.php?title=ASP.NET_Tutorial/Sessions/Session_class&diff=3067&oldid=prev
в 15:30, 26 мая 2010
2010-05-26T15:30:57Z
<p></p>
<table class="diff diff-contentalign-left" data-mw="interface">
<tr style="vertical-align: top;" lang="ru">
<td colspan="1" style="background-color: white; color:black; text-align: center;">← Предыдущая</td>
<td colspan="1" style="background-color: white; color:black; text-align: center;">Версия 15:30, 26 мая 2010</td>
</tr><tr><td colspan="2" style="text-align: center;" lang="ru"><div class="mw-diff-empty">(нет различий)</div>
</td></tr></table>
http://nfex.ru/index.php?title=ASP.NET_Tutorial/Sessions/Session_class&diff=3068&oldid=prev
Admin: 1 версия
2010-05-26T11:57:56Z
<p>1 версия</p>
<p><b>Новая страница</b></p><div>== Session.Abandon()==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page %><br />
<script language="C#" runat="server"><br />
private void Page_PreRender(object sender, EventArgs e)<br />
{<br />
if(Session["UserName"] != null) UserNameLabel.Text = Session["UserName"].ToString();<br />
}<br />
private void SaveButton_Click(object sender, System.EventArgs e)<br />
{<br />
Session["UserName"] = UserNameTextBox.Text;<br />
}<br />
private void AbandonButton_Click(object sender, System.EventArgs e)<br />
{<br />
Session.Abandon();<br />
}<br />
</script><br />
<html><br />
<body><br />
<form id="form1" method="post" runat="server"><br />
<br />
Update UserName in Session: <asp:TextBox id="UserNameTextBox" runat="server"></asp:TextBox><br />
<asp:Button id="SaveButton" runat="server" Text="Save" OnClick="SaveButton_Click"></asp:Button><br />
<br />
Current Session Contents: <br/><br />
<asp:Label ID="UserNameLabel" Runat="server" EnableViewState="False"></asp:Label><br />
<br/><br />
<asp:Button id="RefreshButton" runat="server" Text="Refresh Without Saving"></asp:Button><br />
<br/><br />
Abandon Session - takes effect on *next* request since current request is still referring to Session.<br/><br />
<asp:Button id="AbandonButton" runat="server" Text="Abandon Session" OnClick="AbandonButton_Click"></asp:Button><br />
<br />
<a href="Default.aspx">VB Version - same session</a><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Session.CodePage==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="vb" %><br />
<html><br />
<head><br />
<script runat="server"><br />
Sub Page_Load()<br />
Message.Text = "Current Code Page is: " & Session.CodePage<br />
End Sub<br />
</script><br />
</head><br />
<body><br />
<asp:label id="Message" runat="server"/><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Session.Contents.RemoveAll()==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="vb" %><br />
<html><br />
<head><br />
<script runat="server"><br />
Sub Page_Load()<br />
Session.Contents.RemoveAll()<br />
Message.Text = "Removed all items from current Session."<br />
End Sub<br />
</script><br />
</head><br />
<body><br />
<asp:label id="Message" runat="server"/><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Session.CopyTo==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="vb" %><br />
<html><br />
<head><br />
<script runat="server"><br />
Sub Page_Load()<br />
If Session.Count > 0 Then<br />
Dim myArray As Array = Array.CreateInstance(GetType(Object), _<br />
Session.Count)<br />
Session.CopyTo(myArray, 0)<br />
Message.Text = "The first item in the array is: " & myArray(0)<br />
End If<br />
End Sub<br />
</script><br />
</head><br />
<body><br />
<form runat="server"><br />
<asp:label id="Message" runat="server"/><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Session.IsCookieless==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="vb" %><br />
<html><br />
<head><br />
<script runat="server"><br />
Sub Page_Load()<br />
If Session.IsCookieless Then<br />
Message.Text = "The current Session does not use cookies."<br />
Else<br />
Message.Text = "The current Session uses cookies."<br />
End If<br />
End Sub<br />
</script><br />
</head><br />
<body><br />
<asp:label id="Message" runat="server"/><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Session.IsNewSession==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="vb" %><br />
<html><br />
<head><br />
<script runat="server"><br />
Sub Page_Load()<br />
If Session.IsNewSession Then<br />
"Session("foo") = "foo"<br />
Message.Text = "The current Session (SessionID: " & _<br />
Session.SessionID & ") was created with this request."<br />
Else<br />
Message.Text = "The current Session (SessionID: " & _<br />
Session.SessionID & ") existed prior to this request."<br />
End If<br />
End Sub<br />
</script><br />
</head><br />
<body><br />
<asp:label id="Message" runat="server"/><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Session.IsReadOnly==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="vb" EnableSessionState="ReadOnly" %><br />
<html><br />
<head><br />
<script runat="server"><br />
Sub Page_Load()<br />
If Session.IsReadOnly Then<br />
Message.Text = "The current Session (SessionID: " & _<br />
Session.SessionID & ") is read-only for this page."<br />
Else<br />
Session("foo") = "foo"<br />
Message.Text = "The current Session (SessionID: " & _<br />
Session.SessionID & ") can be written to from this page."<br />
End If<br />
End Sub<br />
</script><br />
</head><br />
<body><br />
<asp:label id="Message" runat="server"/><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Session.Item==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="vb" %><br />
<html><br />
<head><br />
<script runat="server"><br />
Sub Page_Load()<br />
Session.Item("foo") = "foo"<br />
Session.Item("foo2") = "foo2"<br />
Message.Text = Session.Item("foo") & "</br>"<br />
Message.Text &= Session.Item(1)<br />
End Sub<br />
</script><br />
</head><br />
<body><br />
<asp:label id="Message" runat="server"/><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Session.Keys==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="vb" %><br />
<html><br />
<head><br />
<script runat="server"><br />
Sub Page_Load()<br />
Dim Key As String<br />
Message.Text = "Session Keys:"<br />
For Each Key in Session.Keys<br />
Message.Text &= "</br>Key:" & Key<br />
Message.Text &= "</br>Value:" & Session(Key)<br />
Next<br />
End Sub<br />
</script><br />
</head><br />
<body><br />
<asp:label id="Message" runat="server"/><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Session.LCID==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="vb" %><br />
<html><br />
<head><br />
<script runat="server"><br />
Sub Page_Load()<br />
Message.Text = "Current locale ID is: " & Session.LCID & "</br>"<br />
Message.Text &= "Current date and time is: " & DateTime.Now() & "</br>"<br />
Session.LCID = 1036 "France<br />
Message.Text &= "Current locale ID is: " & Session.LCID & "</br>"<br />
Message.Text &= "Current date and time is: " & DateTime.Now() & "</br>"<br />
End Sub<br />
</script><br />
</head><br />
<body><br />
<asp:label id="Message" runat="server"/><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Session.Mode==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="vb" %><br />
<html><br />
<head><br />
<title>Session property example</title><br />
<script runat="server"><br />
Sub Page_Load()<br />
Message.Text = "Current Session State Mode: " & Session.Mode.ToString()<br />
End Sub<br />
</script><br />
</head><br />
<body><br />
<asp:label id="Message" runat="server"/><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Session.Remove==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="vb" %><br />
<html><br />
<head><br />
<script runat="server"><br />
Sub Page_Load()<br />
If Not Session("foo") Is Nothing Then<br />
Session.Remove("foo")<br />
Message.Text = "Item "foo" was removed."<br />
Else<br />
Message.Text = "Item "foo" does not exist."<br />
End If<br />
End Sub<br />
</script><br />
</head><br />
<body><br />
<form runat="server"><br />
<asp:label id="Message" runat="server"/><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Session.RemoveAll==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="vb" %><br />
<html><br />
<head><br />
<script runat="server"><br />
Sub Page_Load()<br />
If Session.Count > 0 Then<br />
Session.RemoveAll()<br />
Message.Text = "Session collection cleared."<br />
Else<br />
Message.Text = "Session collection is already empty."<br />
End If<br />
End Sub<br />
</script><br />
</head><br />
<body><br />
<form runat="server"><br />
<asp:label id="Message" runat="server"/><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Session.RemoveAt==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="vb" %><br />
<html><br />
<head><br />
<script runat="server"><br />
Sub Page_Load()<br />
If Session.Count > 0 Then<br />
Session.RemoveAt(0)<br />
Message.Text = "The item at index 0 was removed."<br />
Else<br />
Message.Text = "The item at index 0 does not exist."<br />
End If<br />
End Sub<br />
</script><br />
</head><br />
<body><br />
<form runat="server"><br />
<asp:label id="Message" runat="server"/><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Session.StaticObjects==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="vb" %><br />
<html><br />
<head><br />
<script runat="server"><br />
Sub Page_Load()<br />
Message.Text = "There are " & Session.StaticObjects.Count & _<br />
" objects declared with the " & _<br />
"&lt;object runat=&quot;server&quot;&gt; syntax in Session scope."<br />
Dim myobj As Object<br />
For Each myObj in Session.StaticObjects<br />
If myObj.Value.GetType.ToString() = _<br />
"System.Web.UI.WebControls.TextBox" Then<br />
myForm.Controls.Add(myObj.Value)<br />
End If<br />
Next<br />
End Sub<br />
</script><br />
</head><br />
<body><br />
<form id="myForm" runat="server"><br />
<asp:label id="Message" runat="server"/><br />
</form><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Session.Timeout==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@ Page Language="vb" %><br />
<html><br />
<head><br />
<script runat="server"><br />
Sub Page_Load()<br />
Message.Text = "Current Session timeout value is " & _<br />
Session.Timeout & " minutes."<br />
End Sub<br />
</script><br />
</head><br />
<body><br />
<asp:label id="Message" runat="server"/><br />
</body><br />
</html></source><br />
<br />
<br />
<br />
== Use Session and Server.Transfer to create a wizard==<br />
<br />
<br />
<br />
<br />
<!-- start source code --><br />
<br />
<source lang="csharp"><br />
<%@Page language="c#" runat="server" Debug="true" %><br />
<script runat="server"><br />
protected void Page_Load(object o, EventArgs e) {<br />
if(IsPostBack) {<br />
Session["theName"] = (string)theName.Text;<br />
Server.Transfer("Default.aspx", false);<br />
}<br />
}<br />
</script><br />
<form runat="server"><br />
Name: <asp:textbox id="theName" runat="server" /><br />
<asp:button type="submit" id="submitStep1" runat="server" Text="Go"/><br />
</form><br />
File: Default.aspx<br />
<br />
<%@Page language="c#" runat="server" %><br />
<script runat="server"><br />
protected void Page_Load(object o, EventArgs e) {<br />
if(IsPostBack) {<br />
Session["theHobby"] = theHobby.Text;<br />
Server.Transfer("NextPage.aspx");<br />
}<br />
}<br />
</script><br />
<form runat="server"><br />
Hobby: <asp:textbox id="theHobby" runat="server"/><br />
<asp:button type="submit" id="submitStep2" runat="server" Text="Go"/><br />
</form><br />
File: NextPage.aspx<br />
<%@Page language="c#" runat="server" %><br />
<script runat="server"><br />
protected void Page_Load(object o, EventArgs e) {<br />
theFinalName.Text = (string)Session["theName"];<br />
theFinalHobby.Text = (string)Session["theHobby"]; <br />
}<br />
</script><br />
<form runat="server"><br />
Done!<br /><br />
Name: <asp:label id="theFinalName" runat="server" /><br/><br />
Hobby: <asp:label id="theFinalHobby" runat="server" /><br/><br />
</form></source></div>
Admin