问题描述
我有一个大致的想法，有一些明显的案例，但对我来说也有一些灰色地带 - 什么时候最好使用从组件扩展，什么时候最好创建用户控件?这与我要解决的特定工作问题有关，但其细节并不重要——对这个问题的一般回答对我来说就足够了.
I have a general idea, and there are some obvious cases, but there are also some gray areas for me - when is it best to use to extend from a component and when is it best to create a user control? This pertains to a specific work problem I am trying to solve, but the specifics of that are not important - a general answer to this question is enough for me.
推荐答案
在 WPF 和 Windows 窗体中，主要区别在于 UserControl 是控件的集合 - 一个可重用的单个对象组合"自多个控件本身.
In WPF and Windows Forms, both, the main difference is that a UserControl is meant to be a collection of controls - a reusable, single object "composed" from multiple controls themselves.
如果您正在制作具有新行为的单个原始控件，而不是制作由较小控件组成的控件"，那么您将实施 Component/CustomControl/Control 而不是 UserControl.组件通常是一种非可视化的行为，其中一个CustomControl/Control通常是一个可视化的控件.
You'd impelemnt a Component/CustomControl/Control instead of a UserControl if you are making a single, primitive control with new behavior, instead of making a "control" that's composed of smaller controls. Component usually is a non-visual behavior, where a CustomControl/Control is usually for a visual control.
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