Here's a newbie question

I'm using strongly typed dataset I can use intellisense to access the columns nicely as long as I do it in the method that
creates the dataset, as follows:

  public DataTable EstablishBlankCustomerData()
    {
      meycotestDataSet ds = new meycotestDataSet();
      ds.arcust.Rows.Clear();
      ds.arcust.Rows.Add();
      ds.arcust[0].country = "USA";
      ds.arcust[0].currency = "USD";
      ds.arcust[0].nocable = "N";
      ds.arcust[0].nopump = "N";
      ds.arcust[0].oringsvssnaps = "N";
      ds.arcust[0].quomeycolite = "N";
      ds.arcust[0].quoruggedmesh = "N";
      ds.arcust[0].quosoliddrain = "N";
      ds.arcust[0].quosolidpump = "N";  
      return ds.arcust;     
    }

I can't figure out how to get intellisense to work when I access the dataset outside that method.

I tried returning the dataset but that doesn't seem to work

Am I missing something?