Beginning Web Development, Silverlight, and ASP.NET AJAX

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CHAPTER 13 ■ AJAX SCRIPTS AND SERVICES
You specify properties by using their name, type, and optional default value. So, for
example, to add a couple of properties of type System.String, you could have a setting
like this:
When using ASP.NET AJAX, you now have access to the Sys.Services.ProfileService
service from JavaScript. In the next sections, you’ll see how to use this to access your
custom properties.
Accessing and Saving Properties in the Profile
The Profile service offers a load method that you use to read in the properties from the
property store. This is usually called as part of the Login callback, which makes sense—
you want to authenticate the user, and then use their validated credentials to load their
profile data.
This takes a number of properties:
propertyNames: String array containing the names of profile properties to load
loadCompletedCallback: Callback function to call upon profile loading
failedCallback: Callback function to call upon failure of profile loading
userContext: String information to pass to the callback functions
For example, a simple call to load will look like this:
Sys.Services.ProfileService.load(null, OnProfileLoadComplete, null, null);
This sets up a simple load of the properties, specifying that the function
OnProfileLoadComplete will be called when the properties are loaded.
The values of the properties are accessed via the Sys.Services.ProfileService.
properties collection. So, if your properties are named Property1 and Property2, as used
earlier, you can then use code like this to load their values into a couple of text boxes:
document.form1.txtP1.value = Sys.Services.ProfileService.properties.Property1;
document.form1.txtP2.value = Sys.Services.ProfileService.properties.Property2;