run แล้วหน้าแสดงผลไม่ขึ้น ทำไงดีค่ะ ใครรู้ช่วยบอกทีค่ะ ผิดตรงไหนช่วยบอกด้วยค่ะ

<%@ Page Language="C#" MasterPageFile="~/MasterPage.master" AutoEventWireup="true" CodeFile="reviewarticleexpert.aspx.cs" Inherits="reviewarticleexpert" Title="บทความสมาชิก" %>
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server">
    <br />
    <br />
    <table style="font-size: 10pt; width: 805px; font-family: 'Microsoft Sans Serif'">
        <tr>
            <td align="center" style="width: 805px">
                ค้นหาจากชื่อบทความ :&nbsp;
                <asp:TextBox ID="txtSearch" runat="server"></asp:TextBox>
                &nbsp;
                <asp:Button ID="btn_Search" runat="server" OnClick="btn_Search_Click" Text="ค้นหา" />&nbsp;
                หรือ&nbsp;
                <asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged">
                    <asp:ListItem Value="0">ยังไม่อนุมัติให้ผ่าน</asp:ListItem>
                    <asp:ListItem Value="1">แก้ไขบทความมาใหม่</asp:ListItem>
                    <asp:ListItem Value="2">อนุมัติผ่านผู้ตรวจสอบ</asp:ListItem>
                </asp:DropDownList></td>
        </tr>
        <tr>
            <td align="center" style="width: 805px">
                <br />
                <br />
                <asp:GridView ID="dgv_ReviewArticle" runat="server" AllowPaging="True" AutoGenerateColumns="False"
                    BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"
                    CellPadding="4" Font-Names="Microsoft Sans Serif" Font-Size="10pt" ForeColor="Black"
                    GridLines="Horizontal" OnPageIndexChanging="dgv_ReviewArticle_PageIndexChanging"
                    Width="800px" OnRowDataBound="dgv_ReviewArticle_RowDataBound" OnRowEditing="dgv_ReviewArticle_RowEditing">
                    <Columns>
                        <asp:BoundField DataField="reviews_id" HeaderText="รหัสบทความ">
                            <ItemStyle HorizontalAlign="Center" />
                        </asp:BoundField>
                        <asp:BoundField DataField="reviews_date" DataFormatString="{0:d}" HeaderText="วันที่ส่ง">
                            <ItemStyle HorizontalAlign="Center" />
                        </asp:BoundField>
                        <asp:TemplateField HeaderText="หัวข้อบทความ">
                            <ItemTemplate>
                                <asp:HyperLink ID="HyperLink1" runat="server" CssClass="style1" Font-Underline="False"
                                    ForeColor="MidnightBlue" NavigateUrl='<%# Eval("Reviews_FileUpload","http://localhost:1472/JournalOfEducation/{0}") %>'
                                    Target="_blank" Text='<%# Eval("Reviews_Name") %>'></asp:HyperLink>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField HeaderText="สถานะบทความ">
                            <ItemStyle HorizontalAlign="Center" />
                            <ItemTemplate>
                                <asp:Label ID="Expert_StatusLabel" runat="server" Text='<%# Eval("Expert_Status") %>' Visible="False"></asp:Label>
                                <asp:Label ID="Label1" runat="server" ForeColor="#C000C0" Text="ยังไม่อนุมัติ" Visible="False"></asp:Label>
                                <asp:Label ID="Label2" runat="server" ForeColor="#C00000" Text="แก้ไขบทความมาใหม่"
                                    Visible="False"></asp:Label>
                                <asp:Label ID="Label3" runat="server" ForeColor="#004000" Text="อนุมัติผ่านผู้ตรวจสอบ"
                                    Visible="False"></asp:Label>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <asp:TemplateField HeaderText="ปรับสถานะ">
                            <ItemStyle HorizontalAlign="Center" />
                            <ItemTemplate>
                                <asp:ImageButton ID="ImageButton1" runat="server" CommandName="Edit" ImageUrl="~/images/F048.png"
                                    Width="30px" />
                                <asp:Label ID="Label4" runat="server" Text='<%# Eval("member_id") %>' Visible="False"></asp:Label>
                            </ItemTemplate>
                        </asp:TemplateField>
                    </Columns>
                    <FooterStyle BackColor="#CCCC99" ForeColor="Black" />
                    <PagerStyle BackColor="White" ForeColor="Black" HorizontalAlign="Right" />
                    <SelectedRowStyle BackColor="#CC3333" Font-Bold="True" ForeColor="White" />
                    <HeaderStyle BackColor="#333333" Font-Bold="True" ForeColor="White" />
                </asp:GridView>
            </td>
        </tr>
        <tr>
            <td align="center" style="width: 805px">
                <br />
                <br />
                <asp:Panel ID="pn_switchstatus" runat="server" BorderColor="MidnightBlue" BorderStyle="Ridge"
                    BorderWidth="1px" HorizontalAlign="Center" Visible="False" Width="500px">
                    <table style="font-size: 10pt; width: 500px; font-family: 'Microsoft Sans Serif'">
                        <tr>
                            <td align="right" style="width: 120px" valign="top">
                                หัวข้อบทความ :&nbsp;
                            </td>
                            <td style="width: 380px">
                                <asp:Label ID="lbReviewsName" runat="server" ForeColor="SaddleBrown"></asp:Label></td>
                        </tr>
                        <tr>
                            <td align="right" style="width: 120px" valign="top">
                                เลือกสถานะบทความ :&nbsp;
                            </td>
                            <td style="width: 380px">
                                <asp:DropDownList ID="ddl_StatusReview" runat="server" AutoPostBack="True" OnSelectedIndexChanged="ddl_StatusReview_SelectedIndexChanged"
                                    Width="250px">
                                    <asp:ListItem Value="0">ยังไม่อนุมัติ</asp:ListItem>
                                    <asp:ListItem Value="1">แก้ไขบทความมาใหม่</asp:ListItem>
                                    <asp:ListItem Value="2">อนุมัติผ่านผู้ตรวจสอบ</asp:ListItem>
                                </asp:DropDownList></td>
                        </tr>
                        <tr>
                            <td align="center" colspan="2" style="width: 500px">
                                &nbsp;<asp:Panel ID="pn_repair" runat="server" Visible="False" Width="480px">
                                    <table style="font-size: 10pt; width: 480px; font-family: 'Microsoft Sans Serif'">
                                        <tr>
                                            <td align="right" style="width: 100px" valign="top">
                                                แจ้งรายละเอียด :&nbsp;
                                            </td>
                                            <td style="width: 350px">
                                                <asp:TextBox ID="txtRepairDetail" runat="server" Height="100px" TextMode="MultiLine"
                                                    Width="300px"></asp:TextBox></td>
                                        </tr>
                                        <tr>
                                            <td align="right" style="width: 100px" valign="top">
                                                ไฟล์เอกสาร :&nbsp;
                                            </td>
                                            <td style="width: 350px">
                                                <asp:FileUpload ID="FileUpload1" runat="server" Width="300px" /></td>
                                        </tr>
                                    </table>
                                </asp:Panel>
                                &nbsp;
                            </td>
                        </tr>
                        <tr>
                            <td align="right" style="width: 120px" valign="top">
                                <asp:Label ID="lbMemberID" runat="server" Visible="False"></asp:Label></td>
                            <td style="width: 380px">
                                <asp:Button ID="btnConfirm" runat="server" OnClick="btnConfirm_Click" Text="ยืนยัน" />&nbsp;
                                &nbsp;<asp:Button ID="btnCancel" runat="server" OnClick="btnCancel_Click" Text="ยกเลิก" />
                                <asp:Label ID="lbReviewsId" runat="server" Visible="False"></asp:Label></td>
                        </tr>
                    </table>
                </asp:Panel>
            </td>
        </tr>
    </table>
</asp:Content>