我上传了图片，但不能获得路径，在线等
protected void Button1_Click(object sender, EventArgs e)
  {
  bool fileIsValid = false;
  //确认上传文件是否符合类型
  if (this.FileUpload1.HasFile)
  {
  string FileExtension = System.IO.Path.GetExtension(this.FileUpload1.FileName).ToLower();
  string[] restrictEstension= { ".gif", ".jpg", ".bmp", ".png" };
  //判断文件是否符合类型
  for (int i = 0; i < restrictEstension.Length; i++)
  {
  if (FileExtension ==restrictEstension[i])
  {
  fileIsValid = true;
  }
  }
  //r如果符合类型，调用SAVEAS进行上传
  if (fileIsValid == true)
  {
  this.FileUpload1.SaveAs(Server.MapPath("~/images/" + FileUpload1.FileName));
  string flashpath = this.FileUpload1.PostedFile.FileName;
  string flashtitle = TextBox1.Text.Trim();
  string flashlink = TextBox2.Text.Trim();
  bool b = new Flashmanager().insertflah(flashtitle, flashpath, flashlink);
  if (b)
  {
  Page.ClientScript.RegisterStartupScript(Page.GetType(), "message", "<script language='javascript' defer>alert('添加成功");
  }
  else
  {
  Page.ClientScript.RegisterStartupScript(Page.GetType(), "message", "<script language='javascript' defer>alert('添加失败");
  }
  }
   
  else 
  {
  Page.ClientScript.RegisterStartupScript(Page.GetType(), "message", "<script language='javascript' defer>alert('双传不成功");
  }
  }


------解决方案--------------------
string savePath = Server.MapPath(string.Format("~/images/{0}", FileUpload1.FileName));

bool b = new Flashmanager().insertflah(flashtitle, savePath, flashlink);