Fill DataSet with DataTable

private static DataSet GetAuctionItemsDataSet(){    SqlDataAdapter adapt = new SqlDataAdapter();    adapt = DataAdapter;    DataSet filler = new DataSet();    adapt.Fill(filler.Tables["AuctionItems"]);    adapt.Fill(filler.Tables["Bids"]);    return filler;}

I want the the SqlDataAdapter to populate a new DataSet with records from the db. The DataSet should contain tables "AuctionItems" and "Bids" I think I am close but cannot seem to find the answer.