Question

我有一个我想要实现的自定义ItemView，我想将事件提升回作为父项的ListView。我该怎么做呢？

例如我的ItemView有。如何让ListView所有者调用事件？

public partial class MyItemView : ContentView, INotifyPropertyChanged
{
}

Answer 1

您可以通过迭代View的父级来获取ListView项目中的ListView，直到我们获得ListView。

public partial class MyItemView : ContentView, INotifyPropertyChanged
{
    ListView listView;

    protected override void LayoutChildren(double x, double y, double width, double height)
    {
        base.LayoutChildren(x, y, width, height);

        Element list = this;

        while(list.GetType() != typeof(ListView))
        {
            list = list.Parent;
        }

        listView = list as ListView;
    }
}

从List ItemView将事件提升到ListView

1 个答案: