System.ArgumentException: Column 'BefAmount' does not belong to table RetDataSet.
   at System.Data.DataRow.get_Item(String columnName)
   at Libraries.FeesStatic.MultiCorpFeesDebt2Statist(DataTable Data)    2017/8/11 11:33:31 

System.ArgumentException: Column 'BefAmount' does not belong to table RetDataSet.
   at System.Data.DataRow.get_Item(String columnName)
   at Libraries.FeesStatic.MultiCorpFeesDebt2Statist(DataTable Data)    2017/8/11 11:33:37