about exception while writing in a file by filestream in c#

[ASHUTOSH TRIPAT]

I am writing some content in xml which i m getting from a url.
I am using filestream for this but i am getting "null reference exception " ny body have ny idea?? plz help me...
urgent ..
following is code ..

public void StoreFeedData(string title,Uri url)
        {
            XmlDocument xmldoc = new XmlDocument();
           
            XmlElement rss = xmldoc.CreateElement("rss");
            XmlElement rsstitle = xmldoc.CreateElement("title");
            rsstitle.InnerText = title;
            rss.AppendChild(rsstitle);
            XmlElement rsslink = xmldoc.CreateElement("link");
            rsslink.InnerText = url.ToString();
            rss.AppendChild(rsslink);
            xmldoc.DocumentElement.InsertAfter(rss, xmldoc.DocumentElement.LastChild);

            //INSTANCE OF FILE IS CREATED 
            FileStream fs = new FileStream(@"\\Program Files\\RssFeed\\feedlist.xml", FileMode.Append, FileAccess.Read);
            //xmldoc.Load(fs);
            //XML DOCUMENT SAVED
            xmldoc.Save(fs);
            fs.Close();

[GaryTexmo]

Which line is generating the null reference exception?

I can't help but wonder if it's line 15 in your example, is that path valid? Wouldn't you need a "C:" in front of that so it knows where to find "Program Files"?

[Curtis Rutland]

Line 15 is for sure a problem.

@ denotes a verbatim string literal, meaning that nothing is escaped, including backslashes.

That line must fail, because there is no such path as \\Program Files.

Either remove the @, or better, remove the excess backslashes:

@"c:\Program Files\RssFeed\feedlist.xml"

Also, include the drive letter.

[ASHUTOSH TRIPAT]

hi curtis... thanx for reply. I tried ur option but still its not working. I tried to debug and its line 12 which is throwing exception.

[Curtis Rutland]

Please be more specific. What error is thrown? The name and the message, please.