Beginning Web Development, Silverlight, and ASP.NET AJAX

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CHAPTER 16 ■ PROGRAMMING SILVERLIGHT WITH XAML AND JAVASCRIPT
The GetHost Method
This method allows you to get a handle on the Silverlight control, and is useful if you
don’t want to keep a global reference to it. Here’s an example:
function someEvent(sender,args)
{
var slControl = sender.getHost();
}
The GetParent Method
Similar to GetHost, this returns a reference to the parent element of a particular XAML
element. This is particularly useful if you want to walk up the XAML tree. Here’s an
example:
var txtBlock = control.content.findName("txt");
var txtBlocksParent = txtBlock.getParent();
Using MediaElement Methods
In addition to the common methods, the MediaElement also exposes the methods
described in the following subsections.
The Play Method
This will start playback of the current media if it is not currently active or resume playback
if it is in a paused state. Here’s an example:
var med = sender.content.findName("mplayer");
med.Play();
The Pause Method
This will pause an active playback. Some types of media may not be paused (i.e., streaming
media), and in this case the pause command will be ignored. You can check to see if
the media can be paused by using the CanPause property. Here’s an example:
var med = sender.content.findName("mplayer");
if(med.CanPause)
med.Pause();
else
// do nothing