TForm属性是TFrame后代的数组(或集合) [英] TForm property that's an array (or collection) of TFrame descendants

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问题描述

我正在再次探索这个主题,从与以前稍有不同的角度来看:

I am exploring this subject again, from a slightly different angle than before:

我有TForm后代,该后代在其他几个组件中用作对话框,我想添加为属性TFrame后代的数组。

I have TForm descendant which is used in a couple of other components as a dialog, that I'd like to add as a property an array of counted TFrame descendants.

我应该使用哪种多项目属性方法? (数组,TList,TObjectList,TCollection,TOwnedCollection等)。

What multi-item property approach should I use for this? (Array, TList, TObjectList, TCollection, TOwnedCollection, etc).

(从概念上讲,我也想知道为什么)

(I'd also love to know, conceptually, "why")

推荐答案

最简单的方法是基于TCollection。

The easiest is to base this on a TCollection.

在TFrame周围编写一个TCollectionItem后代包装。

Write a TCollectionItem descendant wrapper around your TFrame.

确保在其他人释放TFrame实例时,您的TCollectionItem得到通知!

Make sure that when the TFrame instance is freed by someone else, that your TCollectionItem gets notified!

使用提到的结构此处

-jeroen

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