WPF - How do I get the MainWindow instance?

Question

I have this in MainWindow.xaml.cs:

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:

<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.

Answer 1

You can access your field with

Application.Current.MainWindow._frameCounter