protected void Button1_Click(object sender, EventArgs e)
        {
            List <YC_WEBSERVICE_DTO> list = new List <YC_WEBSERVICE_DTO>();
            int n = GridView1.Rows.Count;

            for (int i = 0; i < n; i++)
            {
                YC_WEBSERVICE_DTO yc = new YC_WEBSERVICE_DTO();
                yc.Ma = int.Parse(GridView1.DataKeys[i].Value.ToString());
                DropDownList drop = (DropDownList )GridView1.Rows[i].FindControl("DropDownList1");
                yc.TinhTrangYeuCau = int.Parse(drop.SelectedValue);
                yc.Email           = GridView1.Rows[i].Cells[2].Text;
                list.Add(yc);
            }
            YCWebServiceBUS.UpdateStatusRequest(list);

            /*GridView1.DataSource = YCWebServiceBUS.SelectNewRequest();
             * GridView1.DataBind();*/
            GridRequestDataBind();
        }