页面加载不起作用

我的代码没有进入页面加载。这有什么问题。我在页面加载中使用了断点，但它不会进入页面加载。为什么会这样？帮我做这件事

   public partial class UploadVideo : System.Web.UI.Page
{
    public string UploadVideoToFolder()
    {
        string vTitle = "";
        string vDesc = "";
        string FilePath = HttpContext.Current.Server.MapPath("~/ProductVideos/" + HttpContext.Current.Request.Form["title"]);

        HttpFileCollection MyFileCollection = HttpContext.Current.Request.Files;
        if (MyFileCollection.Count > 0)
        {
            // Save the File
            try
            {
                MyFileCollection[0].SaveAs(FilePath);
                return "1";
            }
            catch (Exception ex)
            {
                return "-1";
            }
        }
        else
            return "-1";
    }
    protected void Page_Load(object sender, EventArgs e)
    {
        string result = UploadVideoToFolder();
        Response.Write(result);
    }
  } 
 }