“/”应用程序中的服务器错误。

ExecuteScalar 要求已打开且可用的连接。连接的当前状态为正在连接。

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.InvalidOperationException: ExecuteScalar 要求已打开且可用的连接。连接的当前状态为正在连接。

源错误:


行 4:  <html xmlns="http://www.w3.org/1999/xhtml">
行 5:  <head>
行 6:      <title>师生频道:<%=QR.QRKh_Sys.Site_info("sitename","1")%>-<%=QR.QRKh_Sys.Site_info("info", "1")%>
行 7:      </title>
行 8:      <meta http-equiv='content-type' content="text/html; charset=gbk" />

源文件: j:\qr_vhost\host_web\wzshedu\www\School_Channel.aspx    行: 6

堆栈跟踪:


[InvalidOperationException: ExecuteScalar 要求已打开且可用的连接。连接的当前状态为正在连接。]
   System.Data.OleDb.OleDbConnection.CheckStateOpen(String method) +1061195
   System.Data.OleDb.OleDbCommand.ValidateConnection(String method) +22
   System.Data.OleDb.OleDbCommand.ValidateConnectionAndTransaction(String method) +15
   System.Data.OleDb.OleDbCommand.ExecuteReaderInternal(CommandBehavior behavior, String method) +51
   System.Data.OleDb.OleDbCommand.ExecuteScalar() +116
   DBGeneral.Data.OperatorAcc.ExecuteScalar(String SQL) +74
   System.Data.osdData.Executescalar(String SQL) +80
   QR.QRKh_Sys.Site_info(String key, String Type) +138
   ASP.school_channel_aspx.__Render__control1(HtmlTextWriter __w, Control parameterContainer) in j:\qr_vhost\host_web\wzshedu\www\School_Channel.aspx:6
   System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +2065851
   System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +24
   System.Web.UI.Page.Render(HtmlTextWriter writer) +26
   System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +25
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +121
   System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +22
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1896


版本信息: Microsoft .NET Framework 版本:2.0.50727.42; ASP.NET 版本:2.0.50727.42