如何在WPF属性窗口中像基本类型一样展示自定义类的属性？

Absolutely you can pull this off! By default, the WPF Property Window only shows a generic view or type name for custom classes, but with a few targeted tweaks, you can make your GraphConstruct and its properties behave just like built-in types such as int, string, or enum. Here's how to get started:

1. Use TypeConverters for Simple String-Based Editing #

If your GraphConstruct can be represented as a human-readable string (and parsed back from one), a TypeConverter is the quickest solution:

• Create a class that inherits from System.ComponentModel.TypeConverter, then override methods like CanConvertFrom, ConvertFrom, CanConvertTo, and ConvertTo to handle conversions between strings and your GraphConstruct object.
• Add the [TypeConverter(typeof(YourGraphConstructConverter))] attribute to your GraphConstruct class. Now the Property Window will display the converted string, and users can edit that string to update the underlying object.

2. Build a Custom UITypeEditor for Complex Property Editing #

If you need a dedicated UI to edit sub-properties (like your VisualDataGroup list), you'll want a custom property editor:

• Create a class that inherits from System.Drawing.Design.UITypeEditor (note: you'll need to reference the System.Design assembly for this).
• Override GetEditStyle to define how the editor opens (e.g., UITypeEditorEditStyle.Modal for a popup window), then override EditValue to launch your custom editing window where users can modify all aspects of GraphConstruct.
• Mark your GRAPH_CONSTRUCT property (or the GraphConstruct class itself) with [Editor(typeof(YourGraphConstructEditor), typeof(UITypeEditor))] to link your editor to the property.

3. Polish Collection Property Display #

For your List<GC_VisualData> property, the default view is limited. To make it fully editable:

• Replace List<T> with ObservableCollection<T>—WPF's collection type that supports automatic change notifications, which plays nicer with the Property Window.
• Add the [Editor(typeof(System.ComponentModel.Design.CollectionEditor), typeof(UITypeEditor))] attribute to the VisualDataGroup property. This uses WPF's built-in collection editor, letting users add, remove, and edit GC_VisualData items directly in the Property Window.

Key Search Keywords to Dive Deeper #

• WPF Property Window custom class TypeConverter
• WPF UITypeEditor custom property editor
• WPF CollectionEditor list property
• WPF BrowsableAttribute custom class properties

内容的提问来源于stack exchange，提问作者박성재