WPF - 如何获取 MainWindow 实例？
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WPF - How do I get the MainWindow instance?
提问by Larry Holze
I have this in MainWindow.xaml.cs:
我在 MainWindow.xaml.cs 中有这个：
public partial class MainWindow : Window
{
public double _frameCounter = 0;\;
Very new to WPF and C#, but the below (MainWindow.xaml) appears to me to be where this class is being instantiated:
WPF 和 C# 非常新，但下面的 (MainWindow.xaml) 在我看来是实例化这个类的地方：
<Window x:Class="CompositionTargetSample.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Composition Target Rendering Sample"
Width="768"
Height="512">
Back in MainWindow.xaml.cs, outside of the MainWindow class, I want to reference the _frameCounter field of the object instantiated in MainWindow.xaml, but don't know how to address that MainWindow object.
回到 MainWindow.xaml.cs，在 MainWindow 类之外，我想引用在 MainWindow.xaml 中实例化的对象的 _frameCounter 字段，但不知道如何处理该 MainWindow 对象。
回答by J R B
You can access your field with
您可以访问您的领域
Application.Current.MainWindow._frameCounter
回答by SeeSharp
Try this: Application.Current.MainWindow._frameCounter
尝试这个： Application.Current.MainWindow._frameCounter
