This may be obvious to some, but by calling out to JavaScript within the document hosting your Silverlight application, you can do some powerful things.  Back in the day, we used to sometimes use an href with “mailto” as a poor man’s contact form – hosting solutions with databases and backups weren’t always as cheap and plentiful as they are today.

Product Description

Even a little programming can go a long way in terms of increasing your ability to create meaningful interactions for your e-Learning. To do that, however, entails understanding basic programming concepts like events, properties, and methods. Add to that the requirement to perform more advanced tasks like adding hyperlinks, communicating via SCORM with your Learning Management System, loading media or graphics, and using a web service to send email from your application, and you have the need for some 'real' programming. Many e-Learning developers use multiple tools. Even if you stick to a single tool like Flash or ToolBook, you still likely have the need to make external JavaScript calls in order to get extra functionality. So rather than focus on a single tool, this book takes each of our programming challenges and solves it in ToolBook - OpenScript, ToolBook - Actions Editor, Flash, JavaScript, and Silverlight.

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I’m going to create a fictional business application that uses JavaScript to call a Silverlight application to search for Australian post codes. The benefit of calling Silverlight code from JavaScript is that the calls are made asynchronously, so there is no page refresh for the end user.

Silverlight 2 is a great technology to build business centric applications, and one of the coolest features is the ability to call JavaScript functions from your Silverlight code.   

Damian Edwards stayed at my house a week leading up to MIX09 and he’s had an amazing impact on our product teams whilst he stayed. One question he did provoke my way was what makes Silverlight better than JavaScript/HTML (forgot the actual wording but the meaning i walked away with was just that).

Team Visifire will show you how to create Drilldown Silverlight charts using Visifire. 

In this sample application, chart can be drilled down till 2 levels. The default chart would show yearly sales of a fictitious company for the period 2006-2008. On click of column representing the sales for an year, monthly sales for that year is shown up. Further it can be drilled down to find product wise sales for the selected month.

Note: This article is submitted by Jeff Paries for Silverlight: Write and Win contest.Thanks a lot, Jeff! Hello All, Please drop a comment if you like it.

Introduction

There have been many requests online regarding methods to go about sending content to a user from within a Silverlight application. Many Silverlight users have asked for a “Save File” dialog that can be leveraged to pass files out of an application. The technique described in this tutorial shows how you can leverage a standard HTML right-click dialog to allow a user to select the “Save Link/Target As” menu and pass any type of file from any type of object to the user, allowing them to save the file to any location they wish.

Introduction

Silverlight helps for creating Rich Internet Applications (RIAs). It runs in the context of the browser. There is an isolated area, called sandbox, which holds the Silverlight application. But why is it necessary to restrict the Silverlight applications in such a way? The answer of this question is pretty simple - because of the security. Running such applications locally is dangerous. They may damage your computer or your data. So, there is a necessity to somehow restrict them. Thus, a Silverlight application runs in the sandbox.

Update: The demo, the source code and the code in the article are compatible with Silverlight 2 RTW. The only changes I made were to the object element in the host page.

This tip is about adjusting the size of the Silverlight object in the Html to the size of the content in our Silverlight application. The example I will use will manipulate only the height, because the width can be manipulated in analogical way.

Let's start with explanation of how we're going to access the Silverlight object in the HTML. We use the HtmlPage object in the codebehind. With its help we invoke a javascript function, which will deal with Silverlight object in the mark up:

private void ResizeSilverlightOnject( double height )

{

    HtmlPage.Window.Invoke( "ResizeObject", new object[] { height } );

}