Question

When you create a Silverlight app using:

<asp:Silverlight id='SlApp' runat='server' Source='~/ClientBin/SLApp.xap' MinimumVersion='2.0' /> 

is there a way to pass in custom information (like a string) so that it can be accessed inside the Silverlight app’s C# code? Like inside the Silverlight’s App() constructor?

Thanks,

Jeff

Answer 1

When using the Silverlight ASP.NET web control, there is an ‘InitParameters’ property that you can use to pass in initialization parameters as key/value pairs…

<asp:Silverlight id='SlApp' runat='server' Source='~/ClientBin/SLApp.xap' MinimumVersion='2.0' InitParameters='id=12345,name=john' /> 

Then in your Silverlight application, you can read those properties in the application’s Startup event…

public partial class App : Application {     public App()     {         Startup += Application_Startup;     }      private void Application_Startup(object sender, StartupEventArgs e)     {         string id = e.InitParams['id'];         string name = e.InitParams['name'];     } } 

The InitParameters property of the StartupEventArgs is simply a generic IDictionary<string,string>.