Access DB Via SqlDataSource....need Result In DataSet

Hi all...I've set the DataSourceMode = SqlDataSourceMode.DataSet, and did a .Type return and found that it is actually returning a DataView.  A component I am trying to avoid rewriting....requires a dataset that loops through the table, does some cool formatting to a datagrid and then rebinds.

Here's the code that I'm trying to send the dataset to....maybe there's just a couple of changes that could make it work with a DataView? 

        int i = 0;
        string prevsub = "";
        while (i <= ds.Tables[0].Rows.Count - 1)
        {
            DataRow dr = ds.Tables[0].Rows[i];
            string sub = dr["SubHeading"].ToString();
            if (sub != prevsub)
            {
                prevsub = sub;
                DataRow newrow = ds.Tables[0].NewRow();
                newrow["Title"] = "SubHeading";
                newrow[columnName] = dr[columnName];
                ds.Tables[0].Rows.InsertAt(newrow, i);
                i++;
            }
            i++;
        }