Maui Patterns

.NET MAUI Patterns

MVVM mit CommunityToolkit.Mvvm

public partial class UserViewModel(IUserService userService) : ObservableObject
{
    [ObservableProperty]
    private string _searchText = string.Empty;

    [ObservableProperty]
    private ObservableCollection<User> _users = [];

    [RelayCommand]
    private async Task SearchAsync()
    {
        var results = await userService.SearchAsync(SearchText);
        Users = new ObservableCollection<User>(results);
    }
}

Shell-Navigation

// Registrierung
Routing.RegisterRoute(nameof(UserDetailPage), typeof(UserDetailPage));

// Navigation mit Query Parameters
await Shell.Current.GoToAsync($"{nameof(UserDetailPage)}?userId={user.Id}");

// Empfang
[QueryProperty(nameof(UserId), "userId")]
public partial class UserDetailViewModel : ObservableObject
{
    [ObservableProperty] private string _userId = string.Empty;
}