Download Data-Driven Services with Silverlight 2 by John Papa PDF

By John Papa

This entire ebook teaches you the way to construct data-rich company functions with Silverlight 2 that draw on a number of resources of knowledge. jam-packed with reusable examples, Data-Driven providers with Silverlight 2 covers all the information entry and net provider instruments you would like, together with info binding, the LINQ facts querying part, RESTful and cleaning soap net carrier help, cross-domain internet carrier calls, and Microsofts new ADO.NET facts companies and the ADO.NET Entity Framework.With this e-book, you will:Know whilst and the way to take advantage of LINQ to JSON, LINQ to XML, and LINQ to ObjectsLearn how Silverlight 2 purposes bind, move, learn, retailer, question, and current dataDiscover how your program can name net providers to paintings with cleaning soap, relaxation, RSS, AtomPub, POX and JSONDesign relaxation, ASMX, and WCF net companies that speak with Silverlight 2Harness RESTful internet prone reminiscent of Digg, Amazon, and TwitterRetrieve and retailer info utilizing the recent Entity Framework and WCFWork with RESTful ADO.NET info companies and its Silverlight buyer library to maneuver facts among your Silverlight program and a databaseData-Driven prone with Silverlight 2 deals many information and tips for development data-rich enterprise functions, and covers the situations youre probably to come across. entire examples in C# and VB could be downloaded from the books spouse web site.

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The binding mode is set to OneTime binding, so the CustomerId value will be pushed from the source object to the target TextBlock's Text property just once, when the source is set to the DataContext. This would be a good choice if the CustomerId is not expected to change at all: OneTime binding is ideal for binding a source object to a control to represent read-only information that is not expected to change in the source.

For example, a TextBox might need to be bound to a different property based on business logic that is executed at runtime. In this case, the bindings could be created conditionally based on the logic. Data namespace and an instance of the Binding class. The Binding class is the same class that you can create through the markup extensions shown in Example 2-6. Therefore, it has the same five properties, as shown in the IntelliSense menu in Figure 2-4. Figure 2-4. 1. Creating Runtime Bindings A runtime binding first requires that a binding be created and a target property specified.

The purpose of dependency properties is to provide a way to determine the value of a property based on inputs, including but not limited to user preferences, resources, styles, and data binding. 8" StrokeThickness="0" /> The Rectangle control's Fill property is a dependency property that can be set to a color. You can determine the Fill property's value using a resource or by data-binding to an object. This would allow the color of the rectangle to be determined at runtime. NET CLR type, but rather with a backing property of type DependencyProperty.

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