DoubleAnimation Basics with Silverlight Application
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Published: 19 May 2009
Unedited - Community Contributed
This article describes the basics of developing an animation application using the Silverlight Application project found in Visual Studio 2008 SP1.
by Jayaram Krishnaswamy
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Silverlight within a short time has made great progress and continues its battle with Adobe applications such as Flash and Adobe Air. Clearly the battle lines are drawn. Adobe is no soft stuff either. But Silverlight has great capability. Events like the Presidential Election and the Olympics have left a lasting impression. Also anybody who has interacted with Netflix or Playboy would know the difference it has made for user experience.

This article is about developing an animation application using the Silverlight Application project that you find in Visual Studio 2008 with SP1. You must download Silverlight 3.0 and Silverlight Tools as described in a number of posts in my blog Why did I choose animation? It's the best eye candy and it sure arrests attention. I am not adept at animation but I describe some of the basics to go about creating animation. The Out of browser experience possible with Silverlight 3.0 is also described.

About Silverlight Application

File | New | Project... opens the New Project window. Expand Visual Basic and highlight Silverlight as shown.

Click on Silverlight Application in Visual Studio installed templates. [If you don't find this then your installation is incomplete. Get the latest installation items from]. This will create an application with a default name, SilverApplication1. Change it to something different. Herein it is named SL3Animation. When you click OK, the New Silverlight Application window gets displayed as shown.

You can create either an ASP.NET Web Application Project or an ASP.NET Web Site. Here the Application Project is chosen. When you click after making this choice you will have created the whole set of template items that you see in the Solution Explorer as shown in the next figure.

You have actually two projects, a vb project and a web project. Further more; the web project has both a HTML page as well as an ASPX page. Behind the scenes what this amounts to is that in the case of the HTML page [SL3AnimationTesPage.html] a Silverlight ActiveX control gets embedded which you can find in the Silverlight.js file. The ActiveX control is named AgControl (good use of the chemical formula for silver). The design surface of the HTML is empty except for a <div/> element to display run time errors.

In the case of SL3AnimationTestPage.aspx, a Silverlight ASP.NET control gets added to the page as shown in the <Form/> element of the ASPX page. In design view you may see a 3-D cube in a light blue background color.

Listing 1

<form id="form1" runat="server" style="height:100%;">
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        <div  style="height:100%;">
            <asp:Silverlight ID="Silverlight1" runat="server" 
            MinimumVersion="3.0.40307.0" Width="100%" Height="100%" /> 

Silverlight applications are based on XMAL, the new declarative markup language. The ActiveX control AgControl as well as the ASP.NET Silverlight control get their content from the MainPage.XAML that you find in the VB Project. If you now browse the HTML or the ASPX page you will see an empty browser as nothing has been added to the template as yet.

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