wpf 如何从框架中获取页面实例？
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How do i get a page instance from a frame?
提问by osh
I have a frame that i initialized in xaml like this:
我有一个在 xaml 中初始化的框架，如下所示：
<window>
<Frame Name="myframe" NavigationUIVisibility="Hidden" Source="mypage.xaml"/>
</window>
I'm trying to get the page instance from the window that contains the frame (which in order contains the page) in c# code and i don't know how to get it.
我正在尝试从包含 c# 代码中的框架（按顺序包含页面）的窗口中获取页面实例，但我不知道如何获取它。
public partial class mywindow : Window
{
public mywindow()
{
BusinessLogic.Initialize();
InitializeComponent();
var a = myframe.Content;
}
}
how do i get it?
我怎么得到它？
thank you
谢谢你
回答by Loures
Your code is correct, but lack cast the return of Content.
您的代码是正确的，但缺少内容的返回。
public partial class mywindow : Window
{
public mywindow()
{
BusinessLogic.Initialize();
InitializeComponent();
var a = (MyPage)myframe.Content;
}
}
回答by Meirion Hughes
I imagine this solution should do the trick?
我想这个解决方案应该可以解决问题吗？
Find all controls in WPF Window by type
FindVisualChildren<Frame>(this).FirstOrDefault()
