There are many other great articles and blog posts on how to create simple Silverlight Splash Screens. This article adds on top of them and helps you design a more complex splash screen with Story Boards and Floating Text Blocks.

I am not a great designer and thus I am taking a design que from Telerik's Silverlight Demos splash screen. They have some amazing designers and their splash screen is an amazing example of that. If you have not already noticed it please visit http://demos.telerik.com/silverlight/ and have a look yourself. We will try to replicate the same behavior in our splash screen.

splashScreen.jpg

Here is a step-by-step guide to do this.

1. Create your XAML

In order to add the splash screen you will first need to add a new Silverlight 1.0 JavaScript (we will refer to it as SLJS for the sake of writing simplicity) page on your server side code.

Since you cannot modify this file in Blend, I created a new Silverlight project and created a new Silverlight User control in it.

Once I had completed the design of this page in Blend, I copied the content to the Silverlight JS page on the server side.

I had to make a few modifications that are listed below.


2. Code the logic in JavaScript file

When you add a new SLJS page in your application, it also creates an underlying .js file where you can write your code logic.

All I had to do was to create 3 functions in it ; they are:

  • onSourceDownloadProgressChanged

    This is to update the progress bar and the big textblock that shows % update in numbers.

    var i = 0;
    function onSourceDownloadProgressChanged(sender, eventArgs)
    {
    sender.findName("txtProgressPercentage").Text = Math.round(Math.round((eventArgs.progress * 1000)) / 10, 1).toString();
    //get browser width var width = window.document.body.clientWidth;
    sender.findName("uxProgress").Width = (width * eventArgs.progress);
    }
  • onTextBoxLoaded

    This is to trigger the first story board. 
    function onTextBoxLoaded(sender, eventArgs)
{
// Retrieve the Storyboard and begin it.     sender.findName("sb1").begin();
}
  • onCompleted

    This is to change the Text of the floating Text box and start the Storyboard again with updated text. 
    function onCompleted(sender, eventArgs)
{
try{
i++;
sender.findName("myTranslate").X = 0;
switch (i) {
case 1:
sender.findName("textBlock").Text = "This is my first content";
break;
case 2:
sender.findName("textBlock").Text = "This is my second content";
break;
case 3:
sender.findName("textBlock").Text = "This is my third content.";
break;
case 4:
sender.findName("textBlock").Text = "This is my fourth content";
break;
case 5:
sender.findName("textBlock").Text = "This is my fifth content.";
break;
case 6:
sender.findName("textBlock").Text = "This is my sixth content";
i = 1;
break;
}
}catch(e){
}
sender.findName("sb1").begin();

I have 6 text block contents that show up on the screen one by one. You can have as many as you want and can also pull them from a collection if that's what you need.

3. Updating the Default.html or Default.aspx page

This is an important and the last step to hook the splash screen we created to our Silverlight application.

Just add a few parameters and a link to the JavaScript file just below the </head> tag. 

<script type="text/javascript" src="splashscreen.js"></script>

The following new parameters go in <div id="silverlightControlHost">:

<param name="splashscreensource" value="SplashScreen.xaml" /> <param name="onSourceDownloadProgressChanged" value="onSourceDownloadProgressChanged" />

The first parameter just tells your app which splash screen to load at startup and the second one calls the js function that eventually updates the progress bar and % progress textblock with numbers.

That's all to it.

This is just an example that shows how you can use Triggers and Storyboards in your splash screens. Use your imagination and create some fantastic start screens. Do leave a link below in comments so I can check them :)

Happy Coding :)