How to Capture the Web Exception in windows phone 8? - windows-phone-8

Question

I am using the Wamp Server for back end and C# for front end. For Cheeking purpose i turn off the server. And run the program. It throw the following error in output window.
'TaskHost.exe' (CLR C:\windows\system32\coreclr.dll: Silverlight AppDomain): Loaded
'C:\windows\system32\System.Core.ni.dll'. Skipped loading symbols. Module is optimized and the debugger option 'Just My Code' is enabled.
An exception of type 'System.Net.WebException' occurred in System.Windows.ni.dll and wasn't handled before a managed/native boundary
An exception of type 'System.Net.WebException' occurred in System.Windows.ni.dll and wasn't handled before a managed/native boundary
My Aim is Capture that Web exception into on message box. Is it possible.
I am already use the try, catch statement for capture that exception. But it's not working.
My Code
private void Login_Click(object sender, RoutedEventArgs e)
{
if (string.IsNullOrWhiteSpace(this.username.Text) || string.IsNullOrWhiteSpace(this.password.Password))
{
MessageBox.Show("Please Enter the Username and Password");
this.username.Text = "";
this.password.Password = "";
}
else
{
string url = ob.localhost + "login_validate.php";
Uri uri = new Uri(url, UriKind.Absolute);
StringBuilder postData = new StringBuilder();
postData.AppendFormat("{0}={1}", "username", HttpUtility.UrlEncode(this.username.Text));// txtUsername.Text));
postData.AppendFormat("&{0}={1}", "password", HttpUtility.UrlEncode(this.password.Password.ToString()));
try
{
WebClient client = default(WebClient);
client = new WebClient();
client.Headers[HttpRequestHeader.ContentType] = "application/x-www-form-urlencoded";
client.Headers[HttpRequestHeader.ContentLength] = postData.Length.ToString();
client.UploadStringCompleted += client_UploadStringCompleted;
//client.UploadProgressChanged += client_UploadProgressChanged;
client.UploadStringAsync(uri, "POST", postData.ToString());
}
catch (Exception ex)
{
MessageBox.Show(ex.Data.ToString());
MessageBox.Show(ex.GetBaseException().ToString());
}
}
prog = new ProgressIndicator();
prog.IsIndeterminate = true;
prog.IsVisible = true;
prog.Text = "Loading....";
SystemTray.SetProgressIndicator(this, prog);
}
Please help me. Thanks in advance.

Answer 1

try using:
catch(Webexception ex)
{
Messagebox.Show(ex.innerexception.tostring());
}