C# 启动新窗口时如何关闭当前窗口（在代码中）
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How to close current window (in Code) when launching new Window
提问by software is fun
SignInWindow signIn= new SignInWindow();
signIn.ShowDialog();
The above code is in my MainWindow class.
上面的代码在我的 MainWindow 类中。
When the new Window is shown, I want the current window to close. Whats the best way to do this?
显示新窗口时，我希望关闭当前窗口。什么是最好的方法来做到这一点？
My application is a C# WPF application
我的应用程序是一个 C# WPF 应用程序
I've tries this but when it's called, my application exits
我试过了，但是当它被调用时，我的应用程序退出
static private void CloseAllWindows()
{
for (int intCounter = App.Current.Windows.Count - 1; intCounter >= 0; intCounter--)
App.Current.Windows[intCounter].Close();
}
采纳答案by Mike Perrenoud
Just do this:
只需这样做：
this.Close();
SignInWindow signIn = new SignInWindow();
signIn.ShowDialog();
bear in mind that will actually closethe MainWindow. If all you're reallytrying to do is hide it, then do this:
请记住，实际上会关闭的MainWindow。如果您真正想做的只是隐藏它，请执行以下操作：
this.Hide();
SignInWindow signIn = new SignInWindow();
signIn.ShowDialog();
this.Show();
That will hidethe MainWindowwhile the login form is up, but then showit again when it's complete.
这将隐藏的MainWindow，而登录表单，但后来表明它再次它完成时。
Okay, so apparently you're launching this form from a static classthat is outsidethe form. That would have been pretty relevant information. But a solution would be this:
好了，显然你推出从这种形式static class是外面的形式。那将是非常相关的信息。但一个解决方案是这样的：
var w = Application.Current.Windows[0];
w.Hide();
SignInWindow signIn = new SignInWindow();
signIn.ShowDialog();
w.Show();
回答by DJ Dev J
You can try this:
你可以试试这个：
SignInWindow signIn= new SignInWindow();
Application.Current.Windows[0].Close();
signIn.ShowDialog();
回答by Maalu...
This is a kind of redirection code. it will close current window/page and redirect to the new page/window in wpf
这是一种重定向代码。它将关闭当前窗口/页面并重定向到 wpf 中的新页面/窗口
SignWindow sw = new SignWindow();
this.Content = sw;
回答by Ketan Dubey
Mike Perrenoud's answer is 100% perfect, although you might want to create a object of the new window and activate it, before you close the Main Window.
Mike Perrenoud 的回答是 100% 完美的，尽管您可能希望在关闭主窗口之前创建新窗口的对象并激活它。
