Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.
at System.Data.DataTable.EnableConstraints()
at System.Data.DataTable.set_EnforceConstraints(Boolean value)
at System.Data.DataTable.EndLoadData()
at System.Data.Common.DataAdapter.FillFromReader(DataSet dataset, DataTable datatable, String srcTable, DataReaderContainer dataReader, Int32 startRecord, Int32 maxRecords, DataColumn parentChapterColumn, Object parentChapterValue)
at System.Data.Common.DataAdapter.Fill(DataTable[] dataTables, IDataReader dataReader, Int32 startRecord, Int32 maxRecords)
at System.Data.Common.LoadAdapter.FillFromReader(DataTable[] dataTables, IDataReader dataReader, Int32 startRecord, Int32 maxRecords)
at System.Data.DataTable.Load(IDataReader reader, LoadOption loadOption, FillErrorEventHandler errorHandler)
at System.Data.DataTable.Load(IDataReader reader)
at DataComponents.SettingsDAL.GetSupervisorDetails() in C:\Users\bhagavan\Desktop\KJL 123\DataComponents\SettingsDAL.cs:line 146
what is this error