[InvalidOperationException: Invalid attempt to read when no data is present.]
System.Data.SqlClient.SqlDataReader.CheckDataIsReady(Int32 columnIndex, Boolean allowPartiallyReadColumn, Boolean permitAsync, String methodName) +2728196
System.Data.SqlClient.SqlDataReader.TryReadColumn(Int32 i, Boolean setTimeout, Boolean allowPartiallyReadColumn) +55
System.Data.SqlClient.SqlDataReader.GetInt32(Int32 i) +45
Capnhat_NDHD.SelectID(Int32 id_ndhd) in d:\Wep_KCN\App_code\Noidung_Hoidap\Capnhat_NDHD.cs:118
View_Chitiet_Hoidap.select_idLV() in d:\Wep_KCN\View_Chitiet_Hoidap.aspx.cs:74
View_Chitiet_Hoidap.Page_Load(Object sender, EventArgs e) in d:\Wep_KCN\View_Chitiet_Hoidap.aspx.cs:16
System.Web.UI.Control.OnLoad(EventArgs e) +108
System.Web.UI.Control.LoadRecursive() +90
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1533
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