abp/templates/wpf/src/MyCompanyName.MyProjectName/MainWindow.xaml.cs

using System;
using System.Windows;

namespace MyCompanyName.MyProjectName;

/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
    private readonly HelloWorldService _helloWorldService;

    public MainWindow(HelloWorldService helloWorldService)
    {
        _helloWorldService = helloWorldService;
        InitializeComponent();
    }

    protected override void OnContentRendered(EventArgs e)
    {
        HelloLabel.Content = _helloWorldService.SayHello();
    }
}