数据网格绑定（WPF）导致UI延迟 [英] Datagrid binding (WPF) causing UI delay

问题描述

我希望能够在不导致UI延迟的情况下将项目快速添加到数据网格中。

I want to be able to add items to a Data grid at a fast rate without causing UI delay.

我现在正在做的是：
我正在使用绑定到数据网格的ObservableCollection。

Here is what I am doing now: I am using an ObservableCollection that is bound to the data grid.

我使用的后台线程仅在从可观察集合中插入/删除时循环并在当前调度程序上调用Invoke。相反，调用BeginInvoke会产生不良结果。

I use a background thread that loops and calls Invoke on the current dispatcher only when inserting/removing from the observable collection. Calling BeginInvoke instead has undesirable results.

我知道在调度程序上调用太多代码会导致延迟，但是我不知道该怎么办。我以前使用过后台工作人员，但我认为这不适用于我的情况。

I know that invoking that much on the dispatcher is causing the delay but I don't know what else to do. I have used background workers before but I don't think that applies to my scenario.

我该怎么做才能使UI保持响应状态？

What can I do to keep the UI responsive?

推荐答案

批处理更新-后台线程可以将项目添加到队列中，并且您可以通过调用定期刷新绑定的可观察集合。如果需要处理多线程生产者，请查看System.Collections.Concurrent命名空间。

Batch the updates -- the background thread could add items to a queue and you can periodically refresh your bound observable collection by invocation. Take a look at the System.Collections.Concurrent namespace if you need to handle multi-threaded producers

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