Current Web Url in Silverlight

Scenario:
Client Object Model and Silverlight is best combo which I use often and always get this question on how to get the Current SharePoint Web Url from within Silverlight without passing it from initparam's manually.

Answer is simple

Steps:
1. Open App.xaml.cs and add the following using statements to the top of the file

using Microsoft.SharePoint.Client;
using System.Threading;

2. Add the following code to the beginning of the Application_Startup method.

ApplicationContext.Init(e.InitParams, SynchronizationContext.Current);

3. Open MainPage.xaml.cs and add the following using statement to the top of the file

using Microsoft.SharePoint.Client;

4. Use the following code to get the client context for current web

ClientContext context = new ClientContext(ApplicationContext.Current.Url);
context.Load(context.Web);

List listSharedDocuments = context.Web.Lists.GetByTitle("Shared Documents");
context.Load(listSharedDocuments);