遍历文件夹所有文件！

<asp:GridView ID="GridView1" runat="server" Width="632px" AutoGenerateColumns="False">
            <Columns>
                <asp:TemplateField HeaderText="文件名">
                    <ItemTemplate>
                        <a href='<%#Eval("FileShowPath") %>' target="_blank"><%#Eval("FileName") %></a>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="文件类型">
                     <ItemTemplate>
                        <%#Eval("FileType") %>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="文件大小">
                     <ItemTemplate>
                        <%#Eval("FileSize") %>
                    </ItemTemplate>
                </asp:TemplateField>
                <asp:TemplateField HeaderText="文件修改时间">
                     <ItemTemplate>
                        <%#Eval("FileLastWrite") %>
                     </ItemTemplate>
                </asp:TemplateField>
            </Columns>
        </asp:GridView>

public class AppCom
}

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
using System.Collections.Generic;
using System.Text.RegularExpressions;
public partial class UploadFileManage : System.Web.UI.Page