[InvalidOperationException: 在没有任何数据时进行无效的读取尝试。]
System.Data.SqlClient.SqlDataReader.CheckDataIsReady(Int32 columnIndex, Boolean allowPartiallyReadColumn, Boolean permitAsync, String methodName) +5327847
System.Data.SqlClient.SqlDataReader.TryReadColumn(Int32 i, Boolean setTimeout, Boolean allowPartiallyReadColumn) +47
System.Data.SqlClient.SqlDataReader.GetValueInternal(Int32 i) +31
System.Data.SqlClient.SqlDataReader.GetValue(Int32 i) +73
System.Data.SqlClient.SqlDataReader.get_Item(String name) +27
pro1.rtc() +232
pro1.Page_Load(Object sender, EventArgs e) +262
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +51
System.Web.UI.Control.OnLoad(EventArgs e) +92
System.Web.UI.Control.LoadRecursive() +54
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +772
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