Learning C# 3.0

Summary

• Windows Presentation Foundation (WPF) is a system intended to combine the functionality of Windows Forms with greater flexibility in interface design.

• In WPF, the presentation of the application is kept in a separate file, written in XAML, which is a dialect of XML.

• When you start a new WPF project, Visual Studio opens both the Design window and the XAML window. Changes made in one window are immediately reflected in the other.

• The XAML file uses a Window element as its root element.

• Each WPF application uses a distinct namespace, defined by the Microsoft XAML schema, and you can add your own objects to that namespace.

• XAML contains several elements for positioning other elements within the application, including the Grid and Stackpanel elements.

• You can set the properties of XAML elements in the Properties window, or by editing the XAML directly.

• Event handlers for WPF elements are kept in a code file, written in C# or another .NET language.

• Resources allow you to define properties for use by any appropriate element in the application.

• Resources require you to define a key in the current namespace so that you can refer to them later in the application.

• A Style element, which can be defined on an element or as a resource, can contain a number of Setter elements that define specific properties of the target element.

• Routed events in WPF can be associated with triggers, which can change the properties of elements in response to events. Triggers can be defined on individual elements, ...