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Making a HTTP request and listening its completion in Windows Phone

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[[Category:Draft]][[Category:Windows Phone]]
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[[Category:Draft]][[Category:Windows Phone]][[Category:Networking]][[Category:HTTP]]
{{Abstract|This article include how to make http request using WebClient and listening requst completion using EventHandler.}}  
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{{Abstract|This article include how to make HTTP request using {{Icode|WebClient}} and listening requst completion using EventHandler.}}  
  
 
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|installfile= <!-- Link to installation file (e.g. [[Media:The Installation File.sis]]) -->
 
|installfile= <!-- Link to installation file (e.g. [[Media:The Installation File.sis]]) -->
 
|devices= <!-- Devices tested against - e.g. ''devices=Nokia 6131 NFC, Nokia C7-00'') -->
 
|devices= <!-- Devices tested against - e.g. ''devices=Nokia 6131 NFC, Nokia C7-00'') -->
|sdk= <!-- SDK(s) built and tested against (e.g. [http://linktosdkdownload/ Qt SDK 1.1.4]) -->
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|sdk= WP 7.1 SDK
|platform= <!-- Compatible platforms - e.g. Symbian^1 and later, Qt 4.6 and later -->
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|platform= Windows Phone 7.5
 
|devicecompatability= <!-- Compatible devices e.g.: All* (must have internal GPS) -->
 
|devicecompatability= <!-- Compatible devices e.g.: All* (must have internal GPS) -->
 
|dependencies= <!-- Any other/external dependencies e.g.: Google Maps Api v1.0 -->
 
|dependencies= <!-- Any other/external dependencies e.g.: Google Maps Api v1.0 -->

Revision as of 08:58, 24 July 2012

This article include how to make HTTP request using WebClient and listening requst completion using EventHandler.

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Article Metadata
Tested with
SDK: WP 7.1 SDK
Compatibility
Platform(s): Windows Phone 7.5
Windows Phone 8
Windows Phone 7.5
Article
Created: mandardac (04 Apr 2012)
Last edited: hamishwillee (24 Jul 2012)

Introduction

HTTPManeger.cs

    public class HTTPManager
{
private WebClient webdownloader;
private Uri uri;
public event EventHandler WebRequestCompleted;
public HTTPManager(string url)
{
webdownloader = new WebClient();
uri = new Uri(url);
}
public void MakeRequest()
{
webdownloader.DownloadStringCompleted += new DownloadStringCompletedEventHandler(DataDownloaded);
webdownloader.DownloadStringAsync(uri);
}
public void DataDownloaded(object sender, DownloadStringCompletedEventArgs args)
{
EventHandler handler = WebRequestCompleted;
if (handler != null)
{
handler(sender, args);
}
}
 
}

//now write another class which actully uses above class to make http request and wants to listen request completion

    public partial class MainPage : PhoneApplicationPage
{
private string loginurl;
// Constructor
public MainPage()
{
InitializeComponent();
MakeRequest();
}
private void MakeRequest() //you can call this method from any event eg.button click, for simplicity i called it from ctor.
{
string loginurl = "http://www.developer.nokia.com/Community/Wiki/Most_Viewed_Windows_Phone_Articles";
try
{
if (!System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable())
{
MessageBox.Show("N/W connection not available");
}
else
{
HTTPManager httpmanager = new HTTPManager(loginurl);
httpmanager.WebRequestCompleted += this.DownlLodCompleted;
httpmanager.MakeRequest();
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
public void DownlLodCompleted(object sender, EventArgs args)
{
MessageBox.Show("Your request is completed.....");
}
}
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