当更改List< T>时更新自动ListBox项.

问题描述

我有一个列表框，我用ItemsSource和List<Control>填充它.

I have a ListBox, I populate it with ItemsSource with List<Control>.

但是，当我为此列表删除或添加新控件时，每次都需要重置ListBox ItemsSource

But when I delete or add new control for this List, I need every time reset my ListBox ItemsSource

有什么方法可以使ListBox同步列表内容?

Have any method for ListBox sync List content?

推荐答案

使用ObservableCollection<T>代替使用List<T>.该列表支持WPF的更改通知:

Instead of using a List<T>, use an ObservableCollection<T>. It is a list that supports change notifications for WPF:

// if this isn't readonly, you need to implement INotifyPropertyChanged, and raise
// PropertyChanged when you set the property to a new instance
private readonly ObservableCollection<Control> items = 
    new ObservableCollection<Control>();

public IList<Control> Items { get { return items; } }

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