tailieunhanh - windows vista for developers delivery guide phần 9

Tham khảo tài liệu 'windows vista for developers delivery guide phần 9', công nghệ thông tin, hệ điều hành phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Session 3 Introducing Windows Presentation Foundation 21 continued Area Explanation Visuals Visual objects are the building blocks of the Windows Presentation Foundation rendering system. The visual layer is the Windows Presentation Foundation equivalent to GDI. 3-D graphics The namespace defines 3-D graphics primitives transformations and animations that can be used to create 3-D controls and graphics. Text WPF introduces many new text-related features including hardware-accelerated rendering subpixel-accurate positioning integrated international support and integrated font-embedding support. Microsoft I Learning 22 Session 3 Introducing Windows Presentation Foundation Demonstration 5 Creating 2-D Content In this demonstration you will see how to create 2-D content by using Windows Presentation Foundation. Key Point The key point of this demonstration is By using the graphics objects in XAML you can easily create graphical content in a XAML application. Session 3 Introducing Windows Presentation Foundation 23 Using Data Binding Data binding establishes a connection between the application Ul and business logic Data binding in Windows Presentation Foundation Can be used to bind to a variety of data sources Can use a variety of types of data-binding Requires a standard format that includes Binding target object Target property Binding source Path 0. J Data binding is the process that establishes a connection between the application UI and business logic. A typical use of data binding is to place data into forms or other UI controls. In Windows Presentation Foundation this concept is expanded to include the binding of a broad range of properties to a variety of data sources. You can bind to a variety of data sources including Extensible Markup Language XML -encoded data. Structured Query Language SQL -based databases. Data objects. Windows Presentation Layer provides four basic types of data-binding One-time. The property is initialized .