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Merge DataTable Into DataSet

  1. DataTable DtAppReq = new DataTable();  
  2. DtAppReq.Columns.Add("Column1", typeof(string));  
  3. DtAppReq.Columns.Add("Column2", typeof(string));  
  4. DtAppReq.Columns.Add("Column3", typeof(int));  
  5. DataSet ds = (DataSet)MethodName();  
  6. (DtAppReq).Merge(ds.Tables[0]);  
  7. DtAppReq.AcceptChanges();  
  8. ViewState.Add("AppData", DtAppReq);