รบกวนผู้รู้ช่วยหน่อยครับ ทำไมหัวมันแดงได้ยังไง ผมงงมากเลยครับ ไม่เคยเป็น

<%@ Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="MFLv1.aspx.cs" Inherits="Project_SAR.MFL1" %>   อันนี้ใช้ได้

<%@ Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="MFlv2.aspx.cs" Inherits="Project_SAR.MFlv2" %>  ใช้ไม่ได้ ทั้งที่เหมือนกันเป๊ะ  

<%@ Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="M2FV2.aspx.cs" Inherits="Project_SAR.MFL1" %>
<asp:Content ID="Content1" ContentPlaceHolderID="HeadContent" runat="server">
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">

        <br />
            <br /><br />
            <br />
            <br />
            <br />
             <asp:GridView ID="GridView1" runat="server" style="width: 100%;" 
            BackColor="White" BorderColor="#999999" BorderStyle="None" BorderWidth="1px" 
            CellPadding="3" GridLines="Vertical" AutoGenerateColumns="False" 
            onrowcommand="GridView1_RowCommand">
                <AlternatingRowStyle BackColor="#DCDCDC" />
                <Columns>
                    <asp:TemplateField HeaderText="Group ID">
                        <EditItemTemplate>
                            <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
                        </EditItemTemplate>
                        <ItemTemplate>
                            <asp:Label ID="GrpID" runat="server" Text='<%# Bind("A1GRID") %>'></asp:Label>
                        </ItemTemplate>
                    </asp:TemplateField>
                    <asp:TemplateField HeaderText="Group Name in Eng">
                        <EditItemTemplate>
                            <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
                        </EditItemTemplate>
                        <ItemTemplate>
                            <asp:Label ID="GrpnameE" runat="server" Text='<%# Bind("A1NMEN") %>'></asp:Label>
                        </ItemTemplate>
                    </asp:TemplateField>
                    <asp:TemplateField HeaderText="Description Eng">
                        <EditItemTemplate>
                            <asp:TextBox ID="TextBox5" runat="server"></asp:TextBox>
                        </EditItemTemplate>
                        <ItemTemplate>
                            <asp:Label ID="GrpDesE" runat="server" Text='<%# Bind("A1DESE") %>'></asp:Label>
                        </ItemTemplate>
                    </asp:TemplateField>
                    <asp:TemplateField HeaderText="Group Name in Thai">
                        <EditItemTemplate>
                            <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox>
                        </EditItemTemplate>
                        <ItemTemplate>
                            <asp:Label ID="GrpnameT" runat="server" Text='<%# Bind("A1NMTH") %>'></asp:Label>
                        </ItemTemplate>
                    </asp:TemplateField>
                    <asp:TemplateField HeaderText="Description Thai">
                        <EditItemTemplate>
                            <asp:TextBox ID="TextBox4" runat="server"></asp:TextBox>
                        </EditItemTemplate>
                        <ItemTemplate>
                            <asp:Label ID="GrpDesT" runat="server" Text='<%# Bind("A1DEST") %>'></asp:Label>
                        </ItemTemplate>
                    </asp:TemplateField>
                    <asp:TemplateField>
                <ItemTemplate>
                    <asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="false"  CommandArgument='<%# Bind("A2GRID") %><%# Bind("A2TYID") %>' CommandName="Edit"   Text="Edit"></asp:LinkButton>
                   &nbsp;&nbsp; <asp:LinkButton ID="LinkButton2" runat="server" CausesValidation="false"  CommandArgument='<%# Bind("A2GRID") %><%# Bind("A2TYID") %>' CommandName="Delete" Text="Delete"></asp:LinkButton>
                   &nbsp;&nbsp; 
                </ItemTemplate>
                <HeaderTemplate><asp:LinkButton ID="LinkButton3" runat="server" CausesValidation="false"  CommandArgument="Insert"  CommandName="Insert" Text="Insert"></asp:LinkButton></HeaderTemplate>
                <ItemStyle Width="80px" />
            </asp:TemplateField>
                </Columns>
                <FooterStyle BackColor="#CCCCCC" ForeColor="Black" />
                <HeaderStyle BackColor="Blue" Font-Bold="True" ForeColor="White" Height="30" />
                <PagerStyle BackColor="#999999" ForeColor="Black" HorizontalAlign="Center" />
                <RowStyle BackColor="#EEEEEE" ForeColor="Black" HorizontalAlign="Center" Height="20" Font-Size="12" />
                <SelectedRowStyle BackColor="#008A8C" Font-Bold="True" ForeColor="White" />
                <SortedAscendingCellStyle BackColor="#F1F1F1" />
                <SortedAscendingHeaderStyle BackColor="#0000A9" />
                <SortedDescendingCellStyle BackColor="White" />
                <SortedDescendingHeaderStyle BackColor="#000065" />



            </asp:GridView>
</asp:Content>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.OleDb;
using System.Web.Configuration;

namespace Project_SAR
{
    public partial class MFL1 : System.Web.UI.Page
    {
        string StrConAS400 = WebConfigurationManager.ConnectionStrings["SMCAS400"].ConnectionString;
        protected void Page_Load(object sender, EventArgs e)
        {
            if (Session["LEVEL"] == null || Session["ID"] == null)
            {
                Response.Redirect("dEFAULT.ASPX");

            }
            Dataread();
        }


        protected void Dataread() {
            string SqlTmp;
            OleDbConnection ConAS400 = new OleDbConnection (StrConAS400);
            ConAS400.Open();

            SqlTmp = "Select * from SMCDTA.CLPACGR where A1STAT <> 'D'";


            OleDbCommand Comm = new OleDbCommand();
            OleDbDataReader Dr;  //ใช้อ่านข้อมูล
            Comm.Connection = ConAS400;
            Comm.CommandType = CommandType.Text;
            Comm.CommandText = SqlTmp;        //ต้องจำ
            Dr = Comm.ExecuteReader();       // เปิดอ่านอย่างเดียว

            if (Dr.HasRows)
            {
                DataTable Dt = new DataTable();
                Dt.Load(Dr);
                GridView1.DataSource = Dt;
                GridView1.DataBind();
                Dr.Close();
                Dr = null;
            }

            
        }
        protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
        {
            string ID = Session["GRID"].ToString();
            string LV = Session["LEVEL"].ToString();
            int level = Convert.ToInt32(LV);
            
            if (e.CommandName == "Edit")
            {   
                Session["GRPID"] = Convert.ToString(e.CommandArgument);
                Session["Command"] = Convert.ToString(e.CommandName);
                Session["GID"] = ID;
                Session["ULV"] = level;

                Response.Redirect("Master1Edit.aspx");
            }
            else if (e.CommandName == "Delete")
            {
                Session["GID"] = ID;
                Session["GRPID"] = Convert.ToString(e.CommandArgument);
                Session["Command"] = Convert.ToString(e.CommandName);
                Session["ULV"] = level;
                Response.Redirect("Master1Edit.aspx");
            }
            else if (e.CommandName == "Insert")
            {
                Session["GID"] = ID;
                Session["Command"] = Convert.ToString(e.CommandName);
                Session["ULV"] = level;
                Response.Redirect("Master1Edit.aspx");
            }



        }
    }
}

             <asp:TemplateField ShowHeader="False">
            <HeaderTemplate>
                    <asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" CommandName="Insert" Text="Insert" CommandArgument="Insert"></asp:LinkButton>
            </HeaderTemplate>
                 <ItemTemplate>
                     <asp:LinkButton ID="LinkButton1" runat="server" CausesValidation="False" CommandName="Edit" Text="Edit" CommandArgument='<%# Bind("A2TYID") %>'></asp:LinkButton>
                     &nbsp;&nbsp;
                     <asp:LinkButton ID="LinkButton2" runat="server" CausesValidation="False" CommandName="Delete" Text="Delete" CommandArgument='<%# Bind("A2GRID") %><%# Bind("A2TYID") %>'></asp:LinkButton>
                     &nbsp;&nbsp;
                 </ItemTemplate>
             </asp:TemplateField>