Getting a DataSet or DataTable from a Class into a DataGrid

Question

Perhaps I am phrasing this question improperly, or perhaps I'm missing something fundamental in programming C#.  But here goes....

I guess my question is essentially can you have a DataSet or DataTable as a property?

In setting up simple websites to display datagrids, after someone entered an account number, I have been using this simple format:

OdbcConnection conn = new OdbcConnection(strConn);
OdbcDataAdapter daInvcLine2 = new OdbcDataAdapter(strSql, conn);
DataSet ds = new DataSet();
daInvcLine2.Fill(ds,"InvcLine2");
DataTable dataTable = ds.Tables["InvcLine2"];
dgCoverage.DataSource=dataTable;
dgCoverage.DataBind();

However, with the new application I am working on, I have an Account Object and I am calling doing the FILL and DataTable steps within the class.  The user fills in a few text boxes which I pass to an account class to create a myAccount object.  Then within the class I perform my SQL and fill a DataSet. However, I can't seem to figure out a way to get the dataset or the DataTable back to the ButtonClick event for display.  I can't seem to pass it as a property like this:

public DataTable GetDataSet
{
  get
  {
  return canthiswork;
  }
  set
  {
  canthiswork=value;
  }
}

And I can't access the DataGrid from the class

Help!!