protected void grid_RowDeleting(object sender, DevExpress.Web.Data.ASPxDataDeletingEventArgs e)
        {
            this.blood = objBlood.GetBloodGroup(Int32.Parse(e.Keys[grid.KeyFieldName].ToString()));
            if (this.blood != null)
            {
                this.objBlood.DeleteBloodGroup(blood);
            }

            grid.CancelEdit();
            e.Cancel        = true;
            grid.DataSource = objBlood.GetBloodGroups();
            grid.DataBind();
        }
        protected void grid_RowUpdating(object sender, DevExpress.Web.Data.ASPxDataUpdatingEventArgs e)
        {
            ASPxTextBox text   = grid.FindEditFormTemplateControl("txtName") as ASPxTextBox;
            ASPxTextBox textId = grid.FindEditFormTemplateControl("txtId") as ASPxTextBox;

            this.blood = objBlood.GetBloodGroup(Int32.Parse(textId.Text));

            if (this.blood != null)
            {
                this.blood.name = text.Text;
                this.objBlood.UpdateBloodGroup(blood);
            }

            grid.CancelEdit();
            e.Cancel        = true;
            grid.DataSource = objBlood.GetBloodGroups();
            grid.DataBind();
        }