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“/”应用程序中的服务器错误。
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未将对象引用设置到对象的实例。
说明: 执行当前 Web 请求期间,出现未处理的异常。请检查堆栈跟踪信息,以了解有关该错误以及代码中导致错误的出处的详细信息。
异常详细信息: System.NullReferenceException: 未将对象引用设置到对象的实例。
源错误:
行 2: Dim nmck As String
行 3: Dim userid As String
行 4: userid = Request.Cookies("userid").Value.ToString
行 5: nmck = Request.Cookies("nmck").Value.ToString
行 6: Label1.Text = "教学站管理员 " & nmck & " :你好!"
源文件: E:\adult1\man\webheader.aspx 行: 4
堆栈跟踪:
[NullReferenceException: 未将对象引用设置到对象的实例。]
ASP.man_main_aspx.__Render__control1(HtmlTextWriter __w, Control parameterContainer) in E:\adult1\man\webheader.aspx:4
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +256
System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +19
System.Web.UI.Page.Render(HtmlTextWriter writer) +29
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +27
System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +99
System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1266
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版本信息: Microsoft .NET Framework 版本:2.0.50727.3082; ASP.NET 版本:2.0.50727.3082
源代码:
If objSdar.HasRows = False Then
Response.Redirect("logins.aspx")
Else
objSdar.Read()
Response.Cookies("nmck").Value = objSdar.GetValue(2).ToString
Response.Cookies("userid").Value = objSdar.GetValue(0)
Response.Cookies("userstation").Value = objSdar.GetValue(14)
Select Case objSdar.GetValue(13)
Case 0
Response.Redirect("~\student\main.aspx")
Case 1
Response.Redirect("~\teacher\main.aspx")
Case 2
Response.Redirect("~\man\main.aspx")
Case 3
'MsgBox(Session("UserName"))
Response.Redirect("~\admin\main.aspx")
End Select
End If
("~\man\main.aspx中的代码:
Dim nmck As String
Dim userid As String
userid = Request.Cookies("userid").Value.ToString
nmck = Request.Cookies("nmck").Value.ToString
Label1.Text = "教学站管理员 " & nmck & " :你好!"
student\main.aspx下代码也同样,但是可以执行,只有man下这一个出错!!! |
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