CreateObject Method
Creates a specified object and returns a reference to it.
| XAML |
Cannot use methods in XAML.
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| Scripting |
retval = silverlightObject.CreateObject(objectType)
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| objectType | string The type of object to create. |
object
An object reference if the object was successfully created; otherwise, null.
The Downloader object is the only object that can be specified by name as the objectType parameter for the CreateObject method. If you specify an invalid objectType parameter, the CreateObject method throws an exception.
The following JavaScript example shows how to invoke the CreateObject method and create a Downloader:
| JavaScript |
|---|
// Event handler for initializing and executing a download request.
function onMouseLeftButtonUp(sender, eventArgs)
{
// Retrieve a reference to the plug-in.
var slPlugin = sender.getHost();
// Create a Downloader object.
var downloader = slPlugin.createObject("downloader");
// Add DownloadProgressChanged and Completed events.
downloader.addEventListener("downloadProgressChanged", onDownloadProgressChanged);
downloader.addEventListener("completed", onCompleted);
// Initialize the Downloader request.
// NOTE: downloader APIs disallow file:\\ scheme
// you must run this sample over localhost: or off a server or the following call will fail
downloader.open("GET", "promo.png");
// Execute the Downloader request.
downloader.send();
}
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