GridView删除确认

//将按钮列转换为模板列
<asp:TemplateField HeaderText="删除" ShowHeader="False">
      <ItemTemplate>
        <asp:LinkButton ID="LinkButton1" CommandArgument='<%# Eval("ST_RCategoryId") %>' runat="server" CausesValidation="false" CommandName="Delete" Text="删除" OnClick="LinkButton1_Click"></asp:LinkButton>
      </ItemTemplate>
 </asp:TemplateField>


//后台
//删除前弹出确认对话框
 protected void dg_RCategoryList_RowDataBound(object sender, GridViewRowEventArgs e)
    ...{
        if (e.Row.RowType == DataControlRowType.DataRow)
        ...{
            LinkButton lb = (LinkButton)e.Row.FindControl("LinkButton1");
            if(lb.Text.Equals("删除"))
            ...{
            lb.Attributes.Add("onclick","javascript:return confirm('"+string.Format( "是否要删除记录{0}？",DataBinder.Eval(e.Row.DataItem,"ST_RCategoryId"))+"')");
            }
        }
    }
//删除
 protected void dg_RCategoryList_RowCommand(object sender, GridViewCommandEventArgs e)
    ...{
        if (e.CommandName == "Delete")
        ...{
            int id = Convert.ToInt32(e.CommandArgument);
            string ST_sqldb = ConfigurationSettings.AppSettings["strcon"];
            //连接ST_GinShopManage数据库
            SqlConnection ST_Conn = new SqlConnection(ST_sqldb);
            ST_Conn.Open();
            //定义sql语句
            String delsql = "delete from ST_RoomCategory where ST_RCategoryId = @RCategoryId";
            //创建ST_mycommand对象,调用delsql
            SqlCommand ST_mycommand = new SqlCommand(delsql, ST_Conn);
            ST_mycommand.Parameters.Add("@RCategoryId", SqlDbType.VarChar);
            //从dg_RCategoryList中获取RCategoryId值
            ST_mycommand.Parameters["@RCategoryId"].Value = id;

            ST_mycommand.ExecuteNonQuery();

            dg_RCategoryList.EditIndex = -1;
            //dg_RCategoryList.EditItemIndex = -1;
            //更新dg_RCategoryList
            Show_RCatgegoryList();
        }
    }