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POSilverlight Navigation and Authentication service
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  1. POSilverlight Navigation and Authentication service
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    copied!<p>I am creating a silver light application using Navigation app template. It is for internal use and hence uses windows authenticatoin. There is a dashboard page which shows couple of records filtered by logged in users id. To get the user id (which is an int) I call a web service by overriding the GetAuthenticatedUser and pass the username (from IPrincipal). This service takes some time to return the details.</p> <p>When I navigate to dashboard app, it renders completely with no data because the user service is a async operation and I am not able to make the rendering wait till my GetAuthenticatedUser finishes completely. So I created a Login page which just shows a progress bar till I get the user object and then navigate to dashboard. If someone tries to access the dashboard directly by using the URL, i want them to navigate back to Login page.</p> <p>So in the dashboard constructor I added the following code</p> <pre><code> if (!UserService.Current.User.IsAuthenticated) { MessageBox.Show("Navigating away"); Frame objContainer = this.Parent as Frame; objContainer.Navigate(new Uri("/Views/Login.xaml", UriKind.Relative)); } </code></pre> <p>Thogh I get the message box prompt, it does not actually take me to Login page but stays in dashboard page. I also tried putting this code in OnNavigatedTo override with no luck.</p> <p>I also tried using NavigationService instead of Frame as below, with no luck</p> <pre><code> if (!UserService.Current.User.IsAuthenticated) { MessageBox.Show("Navigating away"); this.NavigationService.Navigate(new Uri("/Views/Login.xaml", UriKind.Relative)); } </code></pre> <p>it still does not work. Does anyone know how to make some page accessible only if I have fully valid user object? if they try to access the restricted page without this, I want them to be able to redirected to Login page, how can this be achieved?</p> <p>I am using Silverlight 3 Beta</p> <p>Shreedhar</p>
 

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