how i can split records in gridview with checkbox from database?

protected void Page_Load(object sender, EventArgs e)
       {
           string s = "547283,546748,545497,545106,543740"; // Your string
           string[] values = s.Split(','); // splitting string based on (,) operator..


           GridView1.Columns.Add(new TemplateField());
           BoundField a = new BoundField();
           GridView1.Columns.Add(a);


           GridView1.DataSource = values;
           GridView1.DataBind();
      }

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.RowType != DataControlRowType.Header)
            {
                e.Row.Cells[0].Controls.Add(new CheckBox());
            }
        }