System.InvalidOperationException: Invalid attempt to read when no data is present.
at System.Data.SqlClient.SqlDataReader.CheckDataIsReady(Int32 columnIndex, Boolean allowPartiallyReadColumn, Boolean permitAsync, String methodName)
at System.Data.SqlClient.SqlDataReader.TryReadColumn(Int32 i, Boolean setTimeout, Boolean allowPartiallyReadColumn)
at System.Data.SqlClient.SqlDataReader.GetValueInternal(Int32 i)
at System.Data.SqlClient.SqlDataReader.GetValue(Int32 i)
at WS.Item.view_tekst(Int32 ItemID) in C:\Users\User\source\repos\WS\WS\Item.aspx.cs:line 108
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