WinForms和处置自定义控件 [英] WinForms and disposing custom controls

问题描述

我有以下类：

public class NewListBox : ListBox
    {
        public NewListBox()
        {
        }

        private ImageList _myImageList;

        public ImageList ImageList
        {
            get { return _myImageList; }
            set { _myImageList = value; }
        }
     }

我对是否处理这个对象时会触发处置的对象领域，如在ImageList的，或者我应该实现（覆盖）的Dispose方法和做好这项工作自己？

I am interested in whether disposing of this object will trigger the disposal of fields on the object, such as the ImageList, or should i implement (override) the Dispose method and do this work myself?

推荐答案

您应该在ImageList添加到您的控件的组件集合，那么基类实现处置将处置一切的集合，你会不会有覆盖处置自己。

You should add the ImageList to your control's Components collection, then the base-class implementation of Dispose will Dispose everything in that collection, and you won't have to override Dispose yourself.

如果您是IDisposable的，但不是所有的组件成员，那么你将不得不重写处置在你的控制和你自己处置他们。

If you have any members that are IDisposable but are not Components, then you will have to override Dispose in your control and Dispose them yourself.

（我使用的严格意义上的对象，从System.ComponentModel.Component派生词组件）​​。

(I am using the term Component in the strict sense of objects that derive from System.ComponentModel.Component).

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