c# - 代表如何记住其参数？

这个问题已经有了答案：
The scope of variable in inner anonymous method
2答
请考虑以下代码：

public ModelView(Model model) : this()
{
    Loaded += (object sender, RoutedEventArgs e) =>
    {
        DataContext = model;
    };
}

当Loaded事件再次运行时，参数model存在于内存中，但从未显式保存，对吗？

最佳答案

除了@avner的答案外，这也是c编译器在封面下为您生成的：

public ModelView(Model model) : this()
{
    var closure = new AnonymousClass { _this = this, model = model };

    Loaded += closure.Loaded;
}

private class AnonymousClass
{
    public ModelView _this;
    public Model model;

    public void Loaded(object sender, RoutedEventArgs e)
    {
        _this.DataContext = model;
    }
}