i am facing a liitle problem. i think
anyone can help me. i am trying to send
trackback to a blog from a c# application.
when i send trackback reply from blog
shows that it gets the trackback. but
nothing is posted in the blog.
 here is my piece of code which actully
performing this. i hope someone can
figure out problem what i am doing wrong.

///url=url of the post which sends trackback
//blog name=name of the blog which sends trackback
//tburl=url to which trackback will be send
//title=title of the trackback
//excerpt=comments

void SendTrackBck(string url,string title,string blog_name,string excerpt,string tburl)
{
try
            {
                string szTrackbackUrl = tbUrl;
                HttpWebRequest hwrTrackback = (HttpWebRequest)WebRequest.Create(szTrackbackUrl);

                hwrTrackback.Method = "POST";

                StringBuilder sbFormData = new StringBuilder ();
                sbFormData.AppendFormat("url={0}", HttpUtility.UrlEncode(url));
                sbFormData.AppendFormat ("&title={0}", HttpUtility.UrlEncode (title));
                sbFormData.AppendFormat ("&blog_name={0}", HttpUtility.UrlEncode (blog_name));
                sbFormData.AppendFormat ("&excerpt={0}", HttpUtility.UrlEncode (excerpt));

                hwrTrackback.ContentType = "application/x-www-form-urlencoded";
                hwrTrackback.KeepAlive = false;

                byte [] abFormData = System.Text.Encoding.UTF8.GetBytes (sbFormData.ToString ());
                hwrTrackback.ContentLength = abFormData.Length;

                Stream strFormData = hwrTrackback.GetRequestStream ();
                strFormData.Write (abFormData, 0, abFormData.Length);
                strFormData.Close ();

                HttpWebResponse hwrResponse = (HttpWebResponse) hwrTrackback.GetResponse ();



                Stream stream = hwrResponse.GetResponseStream();

                StreamReader reader = new StreamReader(stream);

                string read = reader.ReadToEnd();

                reader.Close();
                stream.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show (ex.ToString ());
            }
}


thanks
rashed

The code looks fine.

Are you sure that the receiving system allows or displays trackbacks? Perhaps the trackbacks are moderated and are not displaying immediately?

Have you actually looked at the response string to see what they send back? maybe that would give you a clue.

/- Sam Judson : Wrox Technical Editor -/

Sam
 thanks for your reply.

actually the receiving site
allows trackbacks and
response from site indicates
that it receives the trackback.

i have actually no idea why it
is not working.

 i am trying it with my blog
rkzico.wordprss.com. i hope
you can help me to make it work.

thanks
rashed

Are you sure the default theme on wordpress is set up to show trackbacks?

/- Sam Judson : Wrox Technical Editor -/

actually i can send trackback
to it with a php script.
but i need to do it in c#

thanks
zico

thanks sam for take a look at my problem

i made it work.

i just changed the following lines


///
  byte [] abFormData = System.Text.Encoding.UTF8.GetBytes (sbFormData.ToString ());

to

byte [] abFormData = System.Text.Encoding.ASCII.GetBytes (sbFormData.ToString ());

and


///
Stream strFormData = hwrTrackback.GetRequestStream ();
                strFormData.Write (abFormData, 0, abFormData.Length);
                strFormData.Close ();


to

using (Stream strFormData = hwrTrackback.GetRequestStream())
                {
                    strFormData.Write(abFormData, 0, abFormData.Length);
                }

thanks
rashed

And alternative might have been to set the charset of the request:

/- Sam Judson : Wrox Technical Editor -/

thanks sam.

i will also check your solution.

rashed