WPF /多线程：UI调度中MVVM [英] WPF/Multithreading: UI Dispatcher in MVVM

问题描述

所以在MVVM环境说，我在后台线程，我想上运行UI控件更新。所以通常我会去myButton.Dispatcher.BeginInvoke（布拉布拉），但我没有访问myButton的（因为视图模型不具有访问视图控件）。那么，什么是这样做的正常模式？

So say in an MVVM environment, I'm in a background thread and I'd like to run an update on a ui control. So normally I'd go myButton.Dispatcher.BeginInvoke(blabla) but I don't have access to myButton (because the viewmodel doesn't have access to the view's controls). So what is the normal pattern for doing this?

（我想总会有约束力，但我想知道如何通过调度做）

(I guess there's always binding, but I'd like to know how to do it via the dispatcher)

推荐答案

我通常使用 Application.Current.Dispatcher ：因为 Application.Current 是静态的，你不需要参照控制

I usually use Application.Current.Dispatcher: since Application.Current is static, you don't need a reference to a control

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