问重定向URL

EN

private void Redirect()
{
    // get url: www.mysite.com/picture/12345
    string refererUrl = Request.ServerVariables["HTTP_REFERER"];    // using the ServerVariables or Request.UrlReferrer.AbsolutePath;
    //string refererUrl = Request.QueryString["url"];                 // if you are redirecting as Response.Redirect("redirectme.aspx?" + Request.Url.Query);

    // split the URL by '/'
    string[] url = refererUrl.Split('/');

    // get the postID
    string topicID = url[url.Length-1]; 

    // get the title from the post
    string postTitle = GetPostTitle(topicID);

    // redirect to: www.mysite.com/picture/some-picture-title/12345
    Response.Redirect(
        String.Format("{0}/{1}/{2}",
            refererUrl.Substring(0, refererUrl.Length - topicID.Length),
            postTitle,
            topicID));
}

protected void Page_PreInit(object sender, EventArgs e)
{
    Redirect();
}