我想在MVVM WPF中关闭用户控件 [英] I want to close a User Control , in MVVM WPF

问题描述

我创建了一个用户控件，我可以关闭整个应用程序......但我只想关闭用户控件。我没有在应用程序中添加用户控件，并从应用程序中删除了用户控件..



这是我在mvvm中用来打开用户控件的代码





窗口窗口=新窗口

{

Title =Sl ，

内容=新视图，

DataContext = new ViewModel（）



};

I have created a user control , i'm able to close the whole app... but i want to close only the user control. I have not added the user control in the app, and removed the user control from the app..

this is the code i used in mvvm to open the user contol


Window window = new Window
{
Title = "Sl",
Content = new View,
DataContext = new ViewModel()

};

推荐答案

没有关闭控件这样的概念。我不认为这样的概念，如果存在的话，可能有用。您可以：1）隐藏用户控件（如果不再需要），可能是暂时的; 2）永久删除逻辑树中的控件。



请参阅：

http://msdn.microsoft.com/en-us/library/ system.windows.uielement.isvisible（v = vs.110）.aspx [ ^ ]，

http://msdn.microsoft.com/en-us/library/system.windows.uielement.visibility(v = vs.110）.aspx [ ^ ]，

http://msdn.microsoft.com/en-us/library/system.windows.visibility%28v=vs.110%29.aspx [ ^ ]，

http：// msdn .microsoft.com / zh-CN / library / ms753391％28v = vs.110％29.aspx [ ^ ]。



也许你需要了解一件事：UI概念开放和关闭只不过是成语;而那些成语甚至都不太精确：你不是真的开放或关闭任何东西：你创建一个窗口，展示它，暂时隐藏或永久处置。我认为这些成语的唯一真正原因是一个简单的事实：因为窗口被称为窗口，具有物质生命原型的东西可以真正打开和关闭。计算机用户界面中这些术语的类似物与这些原始概念相差甚远。

-SA

There is no such concept as "closing a control". And I don't think that such concept, if existed, could be of any use. You can: 1) hide the user control if it is no longer needed, maybe temporarily; 2) permanently remove the control from the logical tree.

Please see:
http://msdn.microsoft.com/en-us/library/system.windows.uielement.isvisible(v=vs.110).aspx[^],
http://msdn.microsoft.com/en-us/library/system.windows.uielement.visibility(v=vs.110).aspx[^],
http://msdn.microsoft.com/en-us/library/system.windows.visibility%28v=vs.110%29.aspx[^],
http://msdn.microsoft.com/en-us/library/ms753391%28v=vs.110%29.aspx[^].

Perhaps you need to understand one thing: the UI notions "open" and "close" are nothing but idioms; and those idioms are not even too precise: you are not really open or close anything: you create a window, show it, hide it temporarily or permanently dispose. I think the only real reason for these idioms is the simple fact: because window is called "window", something with a material life prototype which can really be opened and closed. The analogs of these terms in computer UI are quite far from these original notions.

—SA

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