asp.net c#数据库还原

public partial class shujuku_huanyuan : System.Web.UI.Page
{
    SqlConnection conn =  new SqlConnection(@"server=HUAZD-33\XXD33;uid=sa;pwd=111111;database=master;");
   
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            SqlConnection sqlConn = SqlConnections.GetSQLConnection();
            string shujuku = sqlConn.Database;
         
            this.Text1.Value = shujuku;//备份数据库路径
        }
    }
    protected void btnsearch_ServerClick(object sender, EventArgs e)
    {
        ArrayList arraylistsqls = new ArrayList();
        string path1 = Request["FileUpload1"].ToString().Trim(); //this.FileUpload1.FileName.ToString().Trim();
        string shujukuming = this.Text1.Value.ToString().Trim();
      
        if (System.IO.File.Exists(path1))
        {
        }
        else
        {
            Page.ClientScript.RegisterStartupScript(Page.GetType(), "", "<script>alert('该路径下的备份文件不存在，请重新选择！');</script>");
            return;
        }