Update :- The below solution doens’t work any more
Recently we had a requirement to create a web part that will show the weather information based on the address of the user, which we were pulling from Microsoft Dynamics CRM’s database.
These following two links were of immense help
http://svintinner.blogspot.com/2007/02/how-to-use-weathercom-to-replace-msnbc.html
http://weatherwebpart.codeplex.com/
This is how the web part looks
Below is the sample source code for the web part
public class MyWeatherWebPart : WebPart
{
String UserLocation = "Ahmedabad"; // user city
String UserCountry = "India"; // user country
String RequestforURL = string.Empty; // URL which use to get xml data ( rss feed response ) from weather.com
System.Web.UI.WebControls.Xml xmlResults = new System.Web.UI.WebControls.Xml(); // this object contain final data we need to publish(write on sharepoint site)
protected override void Render(HtmlTextWriter writer)
{
try
{
String reqUrl = "<a href="http://xoap.weather.com/weather/local/">http://xoap.weather.com/weather/local/</a>" + GetLocaleID() + "?cc=*&dayf=5&link=xoap&prod=xoap&par=xxxxxxxx&key=xxxxxxxxxxxxxxx";
HttpWebRequest wr = (HttpWebRequest)WebRequest.Create(reqUrl);
//load the response into a response object
WebResponse resp = wr.GetResponse();
// create a new stream that can be placed into an XmlTextReader
Stream str = resp.GetResponseStream();
XmlTextReader reader = new XmlTextReader(str);
reader.XmlResolver = null;
// create a new Xml document and locading feed data in to it
XmlDocument doc = new XmlDocument();
doc.Load(reader);
// as xml style sheet is use for publishing data so we loading it into envornment
HttpContext context = HttpContext.Current; // getting refrence of current environment
// getting reference of path where sml style sheet stays
string path = context.Request.MapPath("/_layouts/RSSWeatherXSL.xsl");
// this object need to convert xml data into xml style sheet view
XslTransform trans = new XslTransform();
trans.Load(path); // loading xsl file
xmlResults.Document = doc; // loading xml data
xmlResults.Transform = trans; // transforming xml to xsl
xmlResults.DataBind(); // binding data
xmlResults.Visible = true; // setting property
xmlResults.RenderControl(writer); // rendering/publishing data as html
}
catch (Exception ex)
{
writer.Write(ex.Message);
}
}
/// <summary>
/// GetLocaleID() THIS METHOD USED TO GET LOCATION ID WHICH we NEED TO GET WEATHER RSS FEED
/// THIS METHOD USE USER CITY AND COUNTRY INFORMATION
/// </summary>
/// <returns></returns>
public string GetLocaleID()
{
try
{
RequestforURL = "<a href="http://xoap.weather.com/search/search?where">http://xoap.weather.com/search/search?where</a>=" + UserLocation.ToString() + "," + UserCountry.ToString();
// First we request our content from our provider source .. in this case .. The Weather Channel
HttpWebRequest wr = (HttpWebRequest)WebRequest.Create(RequestforURL);
//load the response into a response object
WebResponse resp = wr.GetResponse();
// converting it into stream
Stream str = resp.GetResponseStream();
// creating xml reader
XmlTextReader XmlTextReader = new XmlTextReader(str);
XmlTextReader.XmlResolver = null;
XmlDocument doc = new XmlDocument();
// loading xml data in xml doc
doc.Load(XmlTextReader);
// searching location id
return doc.DocumentElement.ParentNode.LastChild.FirstChild.Attributes[0].Value;
}
catch(Exception ex)
{
throw ex; // any exception then default value i.e toronto, canada
}
}
}
Bye.
Nishant Rana's Weblog 