在一个页面asp.net的页面中使用了自定义控件登录数据库,然后设置session,想在该页面的load事件中取得该session的值,但总是空的.如果该页面中编写了按钮的单击事件,进行单击操作则可以访问该session或者刷新页面也行!
请各位高手,指导指导,最好来一个完整的例子,谢谢,
请各位高手,指导指导,最好来一个完整的例子,谢谢,
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{}
<script language="vb" runat="server">
sub btn1_click(s as object,e as eventargs)
Session("id") = Trim(TextBox1.Text)
end sub
sub btn2_click(s as object,e as eventargs)
Session("id") = ""
TextBox1.Text = ""
end sub
</script>
<asp:button id="btn1" runat="server" onclick="btn1_click" text="设置"></asp:button>
<asp:TextBox id="TextBox1" runat="server"></asp:TextBox>
<asp:Button id="btn2" runat="server" onclick="btn2_click" Text="清空"></asp:Button>
网页文件是
<script language="vb" runat="server">
sub page_load(s as object,e as eventargs)
Label1.Text = Session("id")
end sub</script><%@ register tagprefix="myCtrol" tagname="log" src="mycon1.ascx" %>
<HTML>
<HEAD>
<TITLE>myForm1</TITLE>
</HEAD>
<BODY>
<form runat="server">
<myctrol:log id="mylog" runat="server" valign="top"></myctrol:log>
<br>
<br>
<br>
以下是网页控件
<asp:Label id="Label1" Runat="server">Label</asp:Label></form>
</BODY>
</HTML>按照上面说还是不行,能把这个完整的例子,请各位大侠再帮帮修改一下好吗!
<script language="vb" runat="server">
Sub btn1_click(ByVal s As Object, ByVal e As EventArgs)
System.Web.HttpContext.Current.Session("id") = Trim(TextBox1.Text)
End Sub
Sub btn2_click(ByVal s As Object, ByVal e As EventArgs)
System.Web.HttpContext.Current.Session("id") = ""
TextBox1.Text = ""
End Sub
</script>
<asp:button id="btn1" runat="server" onclick="btn1_click" text="设置"></asp:button>
<asp:TextBox id="TextBox1" runat="server"></asp:TextBox>
<asp:Button id="btn2" runat="server" onclick="btn2_click" Text="清空"></asp:Button> 网页文件:<script language="vb" runat="server">
Private Sub page_load(ByVal s As Object, ByVal e As EventArgs)
Label1.Text = Session("id")
End Sub
</script><%@ register tagprefix="myCtrol" tagname="log" src="mycon1.ascx" %>
<HTML>
<HEAD>
<TITLE>myForm1</TITLE>
</HEAD>
<BODY>
<form id="Form1" runat="server">
<myctrol:log id="mylog" runat="server" valign="top"></myctrol:log>
<br>
<br>
<br>
以下是网页控件
<asp:Label id="Label1" Runat="server">Label</asp:Label></form>
</BODY>
</HTML>
大家在想象还有没有来实现!!
<script language="vb" runat="server">
Public Event SessionChange()
Sub btn1_click(ByVal s As Object, ByVal e As EventArgs)
System.Web.HttpContext.Current.Session("id") = Trim(TextBox1.Text)
RaiseEvent SessionChange()
End Sub
Sub btn2_click(ByVal s As Object, ByVal e As EventArgs)
System.Web.HttpContext.Current.Session("id") = ""
TextBox1.Text = ""
RaiseEvent SessionChange()
End Sub
</script>
<asp:button id="btn1" runat="server" onclick="btn1_click" text="设置"></asp:button>
<asp:TextBox id="TextBox1" runat="server"></asp:TextBox>
<asp:Button id="btn2" runat="server" onclick="btn2_click" Text="清空"></asp:Button> <script language="vb" runat="server">
Private Sub Page_Load(ByVal s As Object, ByVal e As EventArgs)
If Not IsPostBack Then
Label1.Text = Session("id")
End If
End Sub
Private Sub mylog_OnSessionChange()
Label1.Text = Session("id")
End Sub
</script><%@ register tagprefix="myCtrol" tagname="log" src="mycon1.ascx" %>
<HTML>
<HEAD>
<TITLE>myForm1</TITLE>
</HEAD>
<BODY>
<form id="Form1" runat="server">
<myctrol:log id="mylog" runat="server" valign="top" OnSessionChange="mylog_OnSessionChange" ></myctrol:log>
<br>
<br>
<br>
以下是网页控件
<asp:Label id="Label1" Runat="server">Label</asp:Label></form>
</BODY>
</HTML>