如何通过命令打开新窗口或用户控件 [英] How to open a new window or user control through command

问题描述

在我的WPF应用程序中，我有一个父窗口Main.xaml，我有一个按钮。单击按钮我想打开一个新窗口ChildWindow.xaml通过命令（而不是通过代码后面的点击事件）

当子窗体打开时我想禁用Main.xaml窗口，以便用户无法点击它上面的任何内容。



我需要通过MVVM，所以在我不想要的viewmodel中创建ChildWindow实例。有人可以帮帮我。





谢谢。



< b>我尝试了什么：



我可以通过代码behined实现它但我正在寻找使用MVVM

Hi,

In my WPF application, I have a parent window Main.xaml where i have a button. On click of button i want to open a new window ChildWindow.xaml through command (and not through click event in code behind)
when the child form open I want to disable the Main.xaml window so that user cannot click anything on it.

I need it through MVVM so creating ChildWindow instance in the viewmodel I am not looking for. Can anybody please help me out.


Thanks.

What I have tried:

I am able to acheive it through code behined but I am looking through using MVVM

推荐答案

您可以使用 RelayCommand（）和


$ b将按钮绑定到命令$ b使用 Application.Current.MainWindow 属性从ViewModel打开子窗口，将新子窗口链接到现有的MainWindow。

You can bind your button to a command using RelayCommand() and

have the child Window being opened from the ViewModel using the Application.Current.MainWindow property to link your new child window to the existing MainWindow.

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