讀取RSS函數

//讀取RSS函數LoadRSS
//參數RssURl 為RSS路徑
//參數RssCount為讀取的RSS條數

public string LoadRSS(string RssUrl , int RssCount)
    {
        XmlDocument doc = new XmlDocument();
        string Rss = "";
        if (RssUrl != "")
        {
            try
            {
                doc.Load(RssUrl);
                XmlNodeList nodelist = doc.GetElementsByTagName("item");
                XmlNodeList objItems1;
                int i = 0;
                if (doc.HasChildNodes)
                {
                    foreach (XmlNode node in nodelist)
                    {
                        string title = "";
                        string link = "";
                        i += 1;
                        if (node.HasChildNodes)
                        {
                            objItems1 = node.ChildNodes;
                            foreach (XmlNode node1 in objItems1)
                            {
                                switch (node1.Name)
                                {
                                    case "title":
                                        title = node1.InnerText;
                                        break;
                                    case "link":
                                        link = node1.InnerText;
                                        break;
                                }
                                if (title != "" && link != "")
                                    break;
                            }
                            Rss += "<a href='" + link + "' target='_blank'>" + title + "</a><br>";

                        }
                        if (i > RssCount)
                            break;
                    }
                }              
            }
            catch (Exception)
            {              
                Rss = "RSS Feed 來源資料出錯！";
            }
        }
        else
        {
            Rss = "未找到資訊源，您可重新整理重試或聯絡管理員！";
        }
        return Rss;
    }