Microsoft Silverlight – Simple Solution for Passing Data from Web Client to Silverlight

Need to find a simple way of passing data from the Web Client portion of your solution to your initial Silverlight control? By using the InitParameters inside the main *.aspx document of the Web Client, you can.

Here is an example piece of vbscript for passing the IpAddress to Silverlight:

 
<script runat="server">
 Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
    Try
        Dim strIP As String
        strIP = Request.UserHostAddress.ToString
        Xaml1.InitParameters = "IP=" & strIP.ToString()
    Catch ex As Exception
 
    End Try
End Sub
</script>

In your initial Silverlight control (app.xaml.vb), add the following code to the ‘Application Startup’ subroutine to receive the IpAddress:

 
Private Sub Application_Startup(ByVal o As Object, ByVal e As StartupEventArgs) Handles Me.Startup 
    Dim IPAddress As String
    IPAddress = e.InitParams.Item("IP").ToString
    Me.RootVisual = New host(IPAddress)
End Sub

To continue passing the IPAddress to the next Silverlight control, simply pass add it when creating the new instance of the control. See highlight RED above.