在没有控制对象的情况下在UI线程上运行代码 [英] Run code on UI thread without control object present

问题描述

我目前正在尝试编写一个组件，该组件的某些部分应在UI线程上运行(解释会很长). 因此，最简单的方法是将控件传递给它，并在其上使用InvokeRequired/Invoke. 但是我认为将控件引用传递给数据/背景"组件不是一个好的设计，因此我正在寻找一种无需在控件上可用就可以在UI线程上运行代码的方法. . 类似于Application.Dispatcher.Invoke in WPF ...

I currently trying to write a component where some parts of it should run on the UI thread (explanation would be to long). So the easiest way would be to pass a control to it, and use InvokeRequired/Invoke on it. But I don't think that it is a good design to pass a control reference to a "data/background"-component, so I'm searching for a way to run code on the UI thread without the need of having a control available. Something like Application.Dispatcher.Invoke in WPF...

任何想法， 谢谢 马丁

any ideas, thx Martin

推荐答案

有一种更好，更抽象的方法可以在WinForms和WPF上使用:

There's a better, more abstract way to do this that works on both WinForms and WPF:

System.Threading.SynchronizationContext.Current.Post(theMethod, state);

之所以有效，是因为WindowsForms安装了 WindowsFormsSynchronizationContext 对象作为当前同步上下文. WPF做类似的事情，安装它自己的专用同步上下文( DispatcherSynchronizationContext ).

This works because WindowsForms installs a WindowsFormsSynchronizationContext object as the current sync context. WPF does something similar, installing it's own specialized synchronization context (DispatcherSynchronizationContext).

.Post对应control.BeginInvoke，.Send对应control.Invoke.

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