Is it possible to call Silverlight code behind methods through an ASPX Page?

Is it possible to call Silverlight code behind methods through an ASPX Page?

I have embedded a Silverlight application in my ASP.NET page and this Silverlight application has two methods.

I want to call those methods through the ASPX page, i.e. my ASPX page has one Button control and when I click this button I want to call one of the Silverlight methods.

Is it possible? How would I do it?

Answers & Comments...

Answer: 1

You can use Javascript to make a silverlight method calls.

To permit user to access method of Silverlight from JavaScript, you have to set [ScriptableMember] attribute to that method.

If you want to invoke those methods by ASPX methods/events, you should generate Javascript that invokes the silverlight methods.

Example:

Silverlight:

ScriptableClass.cs

public class ScriptableClass     {         [ScriptableMember]         public void ShowAlertPopup(string message)         {             MessageBox.Show(message, "JS Message", MessageBoxButton.OK);         }     }  

App.xaml.cs

 private void Application_Startup(object sender, StartupEventArgs e)         {             this.RootVisual = new MainPage();             ScriptableClass myScript = new ScriptableClass();             HtmlPage.RegisterScriptableObject("scriptableClass", myScript);         }  

index.html

 <script type="text/javascript">              var ctlSLHost = null;         function onPluginLoaded(sender, args) {             ctlSLHost = sender.getHost();         }          function InvokeSLMethod_ShowAlertPopup() {             ctlSLHost.Content.scriptableClass.ShowAlertPopup         ("Showing alert from JS in SL!");         }      </script>  <div>         <div style="width: 250px; background: lightblue; font-weight: bold;height:30px">             HTML Part         </div>         <div>             <input type="button" value="Invoke SL Method - ShowAlertPopup"          onclick="InvokeSLMethod_ShowAlertPopup();" /></div>     </div>   <object data="data:application/x-silverlight-2," type="application/x-silverlight-2"             width="100%" height="80%">             <param name="source" value="ClientBin/Silverlight2JSViseVersa.xap" />             <param name="onError" value="onSilverlightError" />             <param name="background" value="white" />             <param name="minRuntimeVersion" value="4.0.50826.0" />             <param name="autoUpgrade" value="true" />                      <param name="onLoad" value="onPluginLoaded" />              <a href=http://go.microsoft.com/fwlink/?LinkID=149156&v=4.0.50826.0          style="text-decoration: none">                 <img src=http://go.microsoft.com/fwlink/?LinkId=161376          alt="Get Microsoft Silverlight"                     style="border-style: none" />             </a>         </object>  

by : Muhammet TURŞAKhttp://stackoverflow.com/users/1949367

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