System.ArgumentException: Column 'Qyear' does not belong to table . at System.Data.DataRow.GetDataColumn(String columnName) at System.Data.DataRow.get_Item(String columnName) at OnlineTest_Test.GetOnlineQuiz(String idTEst) in c:\Inetpub\vhosts\abhimanuias.com\httpdocs\abhiPedia\TestNew.aspx.cs:line 123 at OnlineTest_Test.Page_Load(Object sender, EventArgs e) in c:\Inetpub\vhosts\abhimanuias.com\httpdocs\abhiPedia\TestNew.aspx.cs:line 75