Communication Between Silverlight And JavaScript

While developing silverlight application there are some situation when you need to pass some information from silverlight application (which you can say managed code) to the JavaScript and also from JavaScript to silverlight application (which you can say calling managed code from the JavaScript). So in this post I will discuss how you can communicate between JavaScript and silverlight application and vice verse.

I am having trouble accessing an embedded Silverlight 2 media player in an aspx page from Javascript and was hoping someone might offer some insight on what's going on. What I want to do is fire a javascript event on the client when a button is pressed to change the Silverlight media player media source and then play the newly selected file. I found what seemed like a pretty straightforward example on the silverlight.net site that looked like this:<%@ Page Title="" Language="VB" MasterPageFile="~/master.master" AutoEventWireup="false" CodeFile="Test.aspx.vb" Inherits="Test" %> <%@ Register Assembly="System.Web.Silverlight" Namespace="System.Web.UI.SilverlightControls" TagPrefix="asp" %> <asp:Content ID="Content1" ContentPlaceHolderID="Middle" Runat="Server"> <asp:MediaPlayer ID="Media1" runat="server" Height="240px" Width="320px"> </asp:MediaPlayer> <button id="Button1" onclick="onPlay()" type="button">Play</button> <script type="text/javascript"> function onPlay() { try { var player = $find("ctl00_Middle_Media1"); player.set_mediasource("example.mp3");

This post covers another useful improvement in VS 2010 - HTML/ASP.NET/JavaScript snippet support. Snippets allow you to be more productive within source view by allowing you to create chunks of code and markup that you can quickly apply and use in your application with a minimum of character typing.

Visual Studio has supported the concept of "snippets" for VB and C# in previous releases - but not for HTML, ASP.NET markup and JavaScript. With VS 2010 we now support snippets for these content types as well.

Even if mobile dev is not my every day work, thanks to the .Net Compact Framework, it's still .Net programming.

Here is the scenario:

You come back home, you have a windows mobile phone wifi capable and you want to quickly get access to your phone pictures from your home network.
You just activate the Wifi, run my app and then browse to the provided link from any computer on the network.

jQuery got so close to me lately that I can see myself adding the scripts to my project almost unconsciously. The thing is, jQuery is very useful for me, in almost all situations and it has been a do or die enhancement for all my project since I first put my hands on it.

Of course while using it, you encounter few situations which need a bit of research to solve, mostly when you are trying to combine it with some other technologies like: UpdatePanels and ASP.NET Ajax. For instance there are many situations when I would like to run some jQuery magic based on some decision that I make on the server side.

jQuery got so close to me lately that I can see myself adding the scripts to my project almost unconsciously. The thing is, jQuery is very useful for me, in almost all situations and it has been a do or die enhancement for all my project since I first put my hands on it.

Of course while using it, you encounter few situations which need a bit of research to solve, mostly when you are trying to combine it with some other technologies like: UpdatePanels and ASP.NET Ajax. For instance there are many situations when I would like to run some jQuery magic based on some decision that I make on the server side

What the heck is WCF? For a long time, I couldn't tell you exactly what it was. And honestly, I still don't think I can. WCF is such a broad concept that it's hard to boil down into a concise explanation. When I finally started reading about it, and getting beyond the concepts, things started to clear up. That's what today's tutorial is about - cutting through all the concepts and just use WCF to build a basic server and a basic client.

Windows Communication Foundation (WCF) provides a unified framework for rapidly building service-oriented applications that makes it easy to build and consume secure, reliable, and transacted Web services. It unifies the capabilities in ASMX, WSE, Remoting, COM+, and MSMQ; therefore developers need to learn only one programming model.

Silverlight 3, .NET RIA Services, and Windows Azure Services Platform makes a 3-tier Cloud application easier to build: Silverlight 3 as presentation tier, .NET RIA services as the business logic and data access tier, and Windows Azure Table as the data storage tier. The sample application in this article demonstrates the architecture with a simple Survey application with all these technologies working together from Windows Azure.

Before explaining the article, I would like to thank all readers who read my article and voted for it. Your appreciation for my article gives me strength to write more good articles. Hope in future I will get your valuable comments and suggestions. Now I won't waste your time and come back to the topic. I have written this article on 'Ajax Enabled Gridview Using JavaScript in ASP.NET'. In this article, I will show you how to make a Gridview using a simple HTML table, JavaScript and XML HTTP for Ajax call without using any ASP.NET control.

Using Code