ADO.NET enables you to create xref:System.Data.DataTable objects and add them to an existing xref:System.Data.DataSet. You can set constraint information for a xref:System.Data.DataTable by using the ...
You can use the xref:System.Data.DataSet.Merge%2A method to merge the contents of a xref:System.Data.DataSet, xref:System.Data.DataTable, or xref:System.Data.DataRow array into an existing DataSet.