由网友(紫竹語嫣﹏)分享简介：我已经问过的问题这里创建一个子窗口。 ..现在，当我打开子窗口，它不`吨开居中到父窗口。我怎样才能将其设置为开居中父窗口？I have asked a question before about creating a child window here ... Now when I open child window...

我已经问过的问题这里创建一个子窗口。 ..现在，当我打开子窗口，它不`吨开居中到父窗口。我怎样才能将其设置为开居中父窗口？

I have asked a question before about creating a child window here ... Now when I open child window, it doesn`t open centered to the parent window. How can I set it to open centered to the parent window?

推荐答案

这解决方案工作对我罚款。

This solution worked fine for me.

下面是一个方法，我已经找到了为中心的一个窗口要么其父母或主窗口的应用程序，在WPF。这不是从你怎么做的WinForms的太不一样了。

Here’s a method I’ve found for centering a window to either its parent or the main window for the application, in WPF. It’s not too different from how you do it in WinForms.

有关的子窗口，设置它的WindowStartupLocation为CenterOwner。这将导致其在所属窗口的中心，以显示。 折叠

For the child window, set its WindowStartupLocation to "CenterOwner". This will cause it to show in the center of the owning Window. Collapse

<Window x:Class="WpfApplication1.TestChild"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="TestChild" Height="300" Width="300"
    WindowStartupLocation="CenterOwner">

现在，所有剩下来要做的显示之前设置它的主人。如果code你使用显示窗口一个窗口类的内部运行，那么你可以只用这个。 折叠

Now, all that’s left to do is set its owner before displaying it. If the code you’re using to display the window is running inside of a Window class, then you can just use this. Collapse

TestChild testWindow = new TestChild();
testWindow.Owner = this;
testWindow.Show();

这并非总是如此，但是，有时候，你需要显示在code运行的子窗口页面或用户控件上。在这种情况下，要在子窗口为中心的应用程序的主窗口。 折叠

This isn’t always the case, however; sometimes, you need to display the child window from the code running on a page or a user control. In this case, you want the child window to be centered to the main window of the application. Collapse

TestChild testWindow = new TestChild();
testWindow.Owner = Application.Current.MainWindow;
testWindow.Show();