ExcelHelper/MainWindow.xaml.cs

using System.Windows;
using CommunityToolkit.Mvvm.Messaging;
using ExcelHelper.Message;
using ExcelHelper.Services;
using ExcelHelper.Views;
using ExcelHelper.Views.ViewModels;

namespace ExcelHelper;

/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow : Window, IView
{
    private readonly MainViewModel ViewModel;
    public MainWindow(MainViewModel viewModel, NavigationService navigationService)
    {
        InitializeComponent();
        DataContext = ViewModel = viewModel;
        navigationService.InitForFrame(MainFrame);

        WeakReferenceMessenger.Default.Register<ErrorDialogMessage>(this, (r, message) =>
        {
            if (message.Value != null)
            {
                ViewModel.ErrorMessage = message.Value;
                MessageDialog.Visibility = Visibility.Visible;
            }
        });
    }

    private void DialogCloseBtn_Click(object sender, System.Windows.RoutedEventArgs e)
    {
        MessageDialog.Visibility = System.Windows.Visibility.Collapsed;
    }

}