WP7 city weather forecast Query

The last time I made a WP7 mobile phone crash location query, although I found a reference for it, but I still had a sense of accomplishment. So I studied the weather forecast for two days and made the following for a long time, but here I would like to express my feelings: it is very important to develop WP7 artists. Otherwise, as I said on the Internet, it is hard to develop WP7 artists .... A bunch of nonsense (although ugly, I have been playing the game for half a day)

You can directly enter the city or select the city. The background code is as follows:

/// <Summary>
/// Select a city
/// </Summary>
/// <Param name = "sender"> </param>
/// <Param name = "E"> </param>
Private void btnadd_click (Object sender, routedeventargs E)
{
Navigationservice. navigate (New uri ("/citypage. XAML", urikind. relativeorabsolute ));
}
/// <Summary>
/// Query the weather
/// </Summary>
/// <Param name = "sender"> </param>
/// <Param name = "E"> </param>
Private void btnseach_click (Object sender, routedeventargs E)
{
Navigationservice. navigate (New uri ("/wheatherpage. XAML? Cityname = "+ textbox1.text, urikind. relativeorabsolute ));
}
/// <Summary>
/// Return to the city
/// </Summary>
/// <Param name = "sender"> </param>
/// <Param name = "E"> </param>
Private void phoneapplicationpage_loaded (Object sender, routedeventargs E)
{
If (navigationcontext. querystring. containskey ("cityname "))
{
Textbox1.text = navigationcontext. querystring ["cityname"];
}
}

Background code: during initialization, the XML file of a city is directly read to a ListBox for display.

Need to be improved and dynamic loading is not yet implemented. Background code

// Read the resource file. The file is in XML format. The building attribute of this file is resource.
Streamresourceinfo Sri = application. getresourcestream (New uri ("/searchwheather; component/citycode. xml ",
Urikind. Relative ));
// Read the data and save it to the result of the string type.
String result;
Using (streamreader sr = new streamreader (SRI. Stream ))
{
Result = Sr. readtoend ();
}

// Use the xdocument class to parse data
Xdocument Doc = xdocument. parse (result );

Here we can query the weather and temperature conditions of the city in the last four days, using Google's API;

Public void loadingdata ()
{
If (navigationcontext. querystring. containskey ("cityname "))
{
Cityname = navigationcontext. querystring ["cityname"];
}
Client. openreadasync (New uri ("http://www.google.com/ig/api? Hl = ZH-CN & OE = utf8 & weather = "+ cityname, urikind. relativeorabsolute ));
Client. openreadcompleted + = new openreadcompletedeventhandler (client_openreadcompleted );
}

Source http://download.csdn.net/detail/huangyuancao/4290653

Here for reference is Han Yifeng's blog inside the weather forecast blog address http://www.cnblogs.com/wildfeng/archive/2012/03/24/2415327.html

Also refer to blog http://blog.csdn.net/fengyun1989/article/details/7341703

Thank you for your help...

PS: I made two small programs for reference to others. I plan to think about myself as my own thing next.