showing data in datatable

protected void Page_Load(object sender, EventArgs e)
   {
       DataTable table = new DataTable();
       table = GetTable(table);

       DataTable dtFinal = new DataTable();
       dtFinal.Columns.Add("BUS");

       foreach (var item in table.AsEnumerable())
       {
           if (item[0].ToString().Contains(","))
           {
               string[] arrTemp = item[0].ToString().Split(',');
               foreach (string itemFinal in arrTemp)
               {
                   dtFinal.Rows.Add(itemFinal);
               }
           }
       }
       GridView1.DataSource = dtFinal;
       GridView1.DataBind();
   }

   private DataTable GetTable(DataTable table)
   {
       table.Columns.Add("Header", typeof(string));

       table.Rows.Add("BUS");
       table.Rows.Add("Bus-1,Bus-2,Bus-3");
       return table;
   }