Introduction to XAML with WPF（介绍与WPF XAML）.pdfVIP

Introduction to XAML with WPF An overview of XAML by JeremyB Overview Understanding XAML (eXtensible Application Markup Language) is a key to creating the latest .NET user experiences in WPF and Silverlight. We will introduce the basic concepts around XAML and take a look at various features such as namespaces, elements, properties, events, attached properties and some basic layout. We’ll create a simple WPF application that covers these fundamentals. Although you will probably end up doing most of your UI design with a drag-and-drop tool such as Expression Blend, knowing the internals gives you a leg up in making the final tweaks to ensure an excellent user experience. Visual Studio IntelliSense works in XAML files very well. This means that as we type, we get tag completion, attribute completion, and even value completion (for values that are Enums). Depending on your preferences, you may find yourself doing a majority of your XAML in the Visual Studio editor and saving the visual design tools for complex cases. The Set Up Our completed application will be a simple stop watch. We’ll start with a skeleton of a WPF application that contains a class with the timer functionality (we’ll fill in the UI ourselves). You can download the source code for the application here: /Downloads.aspx. The download includes the starter application and the completed code. This includes the following projects: • SimpleStopWatch – This is the application we will be working with. This is simply a new WPF project with a single class added: Ticker.cs. • WpfStopWatch – This is a completed application with a few more extras (additional styles, brushes, and custom form-handling). The additional features are outside of the scope of this introduction; you can peruse them at your leisure. An Initial Window When you start a new WPF application, you get the following XAML as a starter (Window1.xaml): Window x :Clas