一个ListBox中获取鉴于项目 [英] Get items in view within a listbox

问题描述

我与物业VirtualizingStackPanel.VirtualizationMode设置为回收的列表框。
我绑定一个自定义集合（实现的IList 和的IList< T> ）它。

I have a ListBox with the property VirtualizingStackPanel.VirtualizationMode set to "Recycling". I am binding a custom collection (implements IList and IList<T>) to it.

现在，如果我理解正确的，当数据被束缚，GetEnumerator的叫。结果
，然后属性公共牛逼此[INT指数] {} 被要求在当前视图中的每个项目。

Now, if I understand right, when data is bound, GetEnumerator is called.
And then property public T this[int index] { } is called for every item in the current view.

我的问题是如何获得当前可见（数据加载后）的项目？

My question is how to get the items that are currently visible (after the data is loaded)?

推荐答案

有时回来我也面临着同样的问题。我用列表框的SelectedItem为选定的项目将是可见的总是发现我的问题的解决方法。在我的情况是滚动这是造成问题。你可以看看是否有帮助 - 结果
虚拟化问题列表框中

Sometime back i also faced the same issue. I found a workaround of my problem by using "SelectedItem" of Listbox as selected item would be visible always. In my case it was Scrolling which was causing issue. You can have a look if it helps -
Virtualization issue in listbox

此外 - 的虚拟化滚动视图 - 很好的一个

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