Server Error in '/' Application.

Invalid attempt to read when no data is present.

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.InvalidOperationException: Invalid attempt to read when no data is present.

Source Error:


Line 69:             SqlDataReader sdr_update = scom_update.ExecuteReader();
Line 70:             sdr_update.Read();
Line 71:             Int32 countupdate = Int32.Parse(sdr_update["bazdid"].ToString()) + 1;
Line 72:             sdr_update.Close();
Line 73:             string strc2 = "update products set bazdid=@b where id=@iiid;";

Source File: d:\hostingspaces\ultrastore.ir\httpdocs\productdetails.aspx.cs    Line: 71

Stack Trace:


[InvalidOperationException: Invalid attempt to read when no data is present.]
   System.Data.SqlClient.SqlDataReader.CheckDataIsReady(Int32 columnIndex, Boolean allowPartiallyReadColumn, Boolean permitAsync, String methodName) +2742604
   System.Data.SqlClient.SqlDataReader.TryReadColumn(Int32 i, Boolean setTimeout, Boolean allowPartiallyReadColumn) +55
   System.Data.SqlClient.SqlDataReader.GetValueInternal(Int32 i) +42
   System.Data.SqlClient.SqlDataReader.GetValue(Int32 i) +95
   productdetails.Page_Load(Object sender, EventArgs e) in d:\hostingspaces\ultrastore.ir\httpdocs\productdetails.aspx.cs:71
   System.Web.UI.Control.OnLoad(EventArgs e) +108
   System.Web.UI.Control.LoadRecursive() +90
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1533


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4700.0