How to do as following?

Hi Get db table values in a datatable and call this method.
public  DataTable FlipDataTable(DataTable dt)
 {
        DataTable table = new DataTable();
         for (int i = 0; i <= dt.Rows.Count; i++)       
                 table.Columns.Add(Convert.ToString(i));
         DataRow r;
        for (int k = 0; k < dt.Columns.Count; k++)
         {
                 r = table.NewRow();
                 r[0] = dt.Columns[k].ToString();
                for (int j = 1; j <= dt.Rows.Count; j++)
                        r[j] = dt.Rows[j - 1][k];
                 table.Rows.Add(r);
        }
        return table;
}