I'm not sure if what I'm trying to do is possible in this realm. However, here's what I'm tyring to do. I'm using XmlWriter.WriteElementString Method to write out my RSS feed from the database. What I like to do is at some point of the data, I like to put
some html syntax such as <br /> and hr tag to format the output of the RSS feed a bit better. Any suggestion is much appreciated.
Okay, I've found this tutorial and this
one but for some reason when I tried it, it didn't work. I do not want to encode HTML but what I want is excaped RSS and output html -- hopefully I explained it correctly here. Here's what I have.
I want to output a <hr /> to break up the number of items in my foreach loop. So far this has not worked. All the items that comes after this item with the description does not show up.
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How to output html syntax to RSS feed using XmlWriter.WriteElementString Method?
Jan 30, 2014 09:35 AM|mychucky|LINK
I'm not sure if what I'm trying to do is possible in this realm. However, here's what I'm tyring to do. I'm using XmlWriter.WriteElementString Method to write out my RSS feed from the database. What I like to do is at some point of the data, I like to put some html syntax such as <br /> and hr tag to format the output of the RSS feed a bit better. Any suggestion is much appreciated.
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Re: How to output html syntax to RSS feed using XmlWriter.WriteElementString Method?
Feb 02, 2014 10:03 PM|Terry Guo - MSFT|LINK
Hi mychucky,
The following code is sample for output html to RSS feed using XmlWriter.WriteElementString method:
/// <summary> /// Starts the Http Listener on a background thread. /// </summary> private void StartHttpListener() { if (HttpListener.IsSupported) { try { //Creates a HttpListener with two urls for RSS and HTML. HttpListener listener = new HttpListener(); listener.Prefixes.Add("http://localhost:8080/taskfeed/"); listener.Prefixes.Add("http://localhost:8080/taskhtml/"); listener.Start(); while (true) { HttpListenerContext context = listener.GetContext(); HttpListenerRequest request = context.Request; HttpListenerResponse response = context.Response; //Checks if the user is requesting the HTML page or the RSS feed. if (context.Request.RawUrl.EndsWith("feed")) { //Renders the RSS feed. context.Response.ContentType = "application/xml"; XmlTextWriter xmlWriter = new XmlTextWriter(context.Response.OutputStream, Encoding.UTF8); xmlWriter.WriteStartDocument(); xmlWriter.WriteStartElement("rss"); xmlWriter.WriteAttributeString("version", "2.0"); xmlWriter.WriteStartElement("channel"); xmlWriter.WriteElementString("title", "HelpDesk Application - Open Requests"); xmlWriter.WriteElementString("description", "An RSS feed of open HelpDesk Requests. Can be used by gadgets, feed readers etc."); xmlWriter.WriteElementString("link", "http://localhost:8080/taskhtml/"); foreach (HelpDeskRequest hr in logic.RequestDatabase) { if (!hr.Closed) { xmlWriter.WriteStartElement("item"); xmlWriter.WriteElementString("guid", hr.ID.ToString()); xmlWriter.WriteElementString("title", hr.Subject); xmlWriter.WriteElementString("link", "helpdesk://open?id=" + hr.ID.ToString()); xmlWriter.WriteElementString("pubDate", hr.Date.ToString("r")); xmlWriter.WriteEndElement(); } } xmlWriter.WriteEndElement(); xmlWriter.WriteEndElement(); xmlWriter.WriteEndDocument(); xmlWriter.Flush(); xmlWriter.Close(); } else { //Renders the HTML page. context.Response.ContentType = "text/html"; StringBuilder sb = new StringBuilder(); sb.Append("<html><head><title>HelpDesk Application</title>"); sb.Append("<link rel='alternate' type='application/rss+xml' title='HelpDesk Request Feed' href='taskfeed' />"); sb.Append("<style>body { font-family: verdana; }</style></head><body>"); sb.Append("<h1 style='color: red;'>Open HelpDesk Requests</h1><ul>"); foreach (HelpDeskRequest openItem in logic.RequestDatabase.FindAll(delegate(HelpDeskRequest hr) { return !hr.Closed; })) { sb.Append(string.Format("<li><a href='helpdesk://open?id={0}'>{1}</a></li>", openItem.ID, openItem.Subject)); } sb.Append("</ul><h1 style='color: green;'>Closed HelpDesk Requests</h1><ul>"); foreach (HelpDeskRequest closedItem in logic.RequestDatabase.FindAll(delegate(HelpDeskRequest hr) { return hr.Closed; })) { sb.Append(string.Format("<li><a href='helpdesk://open?id={0}'>{1}</a></li>", closedItem.ID, closedItem.Subject)); } sb.Append("</ul></body></html>"); StreamWriter streamWriter = new StreamWriter(response.OutputStream); streamWriter.WriteLine(sb.ToString()); streamWriter.Flush(); streamWriter.Dispose(); } response.Close(); } } catch (Exception) { MessageBox.Show("Unable to start HttpHandler. Are you running this application as an administrator?", "Running as administrator?", MessageBoxButtons.OK, MessageBoxIcon.Error); } } }Hope it helps.
Best Regards,
Terry Guo
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Re: How to output html syntax to RSS feed using XmlWriter.WriteElementString Method?
Feb 03, 2014 09:04 AM|mychucky|LINK
That looks very promising. Thank you, Terry. I'll try to implement and see what happen. Thanks so much!
Member
269 Points
3801 Posts
Re: How to output html syntax to RSS feed using XmlWriter.WriteElementString Method?
Feb 10, 2014 11:01 AM|mychucky|LINK
Okay, I've found this tutorial and this one but for some reason when I tried it, it didn't work. I do not want to encode HTML but what I want is excaped RSS and output html -- hopefully I explained it correctly here. Here's what I have.
xtwRSSFeed.WriteStartElement("item"); xtwRSSFeed.WriteStartElement("description", "<hr>"); xtwRSSFeed.WriteEndElement();I want to output a <hr /> to break up the number of items in my foreach loop. So far this has not worked. All the items that comes after this item with the description does not show up.