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Web Services for Remote Portlets (WSRP) and the portlet API share the same styles The next layer to integrate is a common terminology for the user interface items across portlets Portlets can use the same or similar terms for user interface commands, navigation, and data display If we have a portlet that allows browsing through a document management system that holds patent applications, and a portlet that lets us get training materials from the information technology department, both should share a common vocabulary There are several ways to go about creating a common terminology, and the approach you take probably will depend on how your development teams are structured more than anything else The easiest way is for the developers of the first phase of the portal to hire usability engineers or human-computer interaction specialists to assist with the creation of the interface.

Summary

These experts can recommend clear language for interface elements in the portlet Other groups developing portlets can copy the language used in the first phase of portlet building, or bring in the usability experts for more consulting You can abstract out the terms out into resource bundles that are maintained in a central repository, although this could end up creating a deadlock in some development organizations Another approach is to leverage the terminology created for existing web applications being ported to the portal environment Development teams can then reconcile inconsistencies at the portal level with each other A tester can be assigned to catalog the vocabulary currently in use, and terms that do not match a common vocabulary can either be added or changed to match existing terminology The final layer to integrate is process and navigation consistency.

Now that you have a good understanding of XPath, location paths, and XPath functions, let s delve further into the .NET Framework s XPath data model.

When users carry out tasks with a portlet, can they use that workflow to carry out the same task in another portlet Developers who can create standards for process will cut down on end-user support costs and training for new portlets..

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!

The XPath data model of the .NET Framework relies on a class called XPathNavigator residing in the System.Xml.XPath namespace. The XPathNavigator class is an abstract class and provides a cursor-based navigation model for the underlying XML data. It also allows you to edit XML documents. You can obtain an XPathNavigator instance from any class that implements the IXPathNavigable interface. The classes that already implement this interface are XmlDocument and XPathDocument. You have already worked with the XmlDocument class and hence it needs no explanation. The XPathDocument class, which resides in the System.Xml.XPath namespace, provides a read-only representation of an XML document by using the XPath data model. It loads the document in memory and naturally provides fast access to various parts of the document. The XPathNavigator instance returned from XmlDocument is editable, whereas that returned by XPathDocument is read-only.

Summary

The TokenProcessor API provides a single class, Token, that is used to parse token information received from a card. It provides the following properties:

We have covered the core pieces of the portlet API in this chapter. Portlet requests provide information about the user s request to the portal. Portlet

You can obtain an instance of XPathNavigator from either XmlDocument or XPathDocument. Both of these classes implement the IXPathNavigable interface and provide a method called CreateNavigator() that creates and returns an object of type XPathNavigator.

4

IdentityClaims: This returns a System.IdentityModel.Claims.ClaimSet collection,

To see how these classes can be used, you need to develop a Windows Forms application like the one shown in Figure 4-1.