You can easily convert DataTable to DataSet or vice-versa DataTable from DataSet
//Assuming oDS is my DataSet
DataTable oDt = oDS.Tables[0];// If you know name of datatable you may use oDS.Tables["name"]
DataSet from DataTable
//Assuming oDT is your DataTable
DataSet oDs = new DataSet();
oDs.Tables.Add(oDT);