Beginning Web Development, Silverlight, and ASP.NET AJAX

CHAPTER 15 ■ ENHANCING THE WEB EXPERIENCE WITH SILVERLIGHT 373
If you want to monitor the download progress and completion status, you can wire
up the appropriate event handlers. Here’s an example:
downloader.addEventListener("downloadProgressChanged", "handleDLProgress");
downloader.addEventListener("completed", "handleDLComplete");
Now you can implement these handlers:
function handleDLProgress(sender, args)
{
var ctrl = sender.getHost();
var t1 = ctrl.content.findName("txt1");
var v = sender.downloadProgress * 100;
t1.Text = v + "%";
}
function handleDLComplete(sender, args)
{
alert("Download complete");
}
Summary
In this chapter, you took a look at Silverlight and how Silverlight applications are constructed.
You worked your way through the anatomy of a typical Silverlight application
before embarking on a tour of the Silverlight control and its various properties, methods,
and events.
In the next chapter, you will look at XAML, and take a tour of the XAML controls that
are supported by Silverlight. You’ll also look into their JavaScript API, rounding out the
programming aspects of working in Silverlight. This will hopefully serve as a launch
board for you to go out and get more involved with the technology!