asp.net(C#) 数据库备份还原 源码

Backup.aspx
  protected void Button1_Click(object sender, EventArgs e)
    {
        string path = Server.MapPath("") + @"\Backup";
        if (!Directory.Exists(path))
        {          
            Directory.CreateDirectory(path);
        }
        try
        {
            path = Convert.ToString(Hst.DBUtility.DbHelperSQL.GetSingle("p_DataBaseBack"));
            LabelMessage.Text = "备份成功; 文件存放路径在：" + path;
        }
        catch
        {
            LabelMessage.Text = "备份失败!请联系管理员";
        }
       
    }
DataBack.aspx
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.Data.SqlClient;
using Hst.DBUtility;
public partial class SysManager_DataBack : System.Web.UI.Page
{
    const string FilePath = "E:\\Backup\\";
    int a = 1;
    Hst.SysManage.FileControl fc = new Hst.SysManage.FileControl();
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)