通过ViewModel将DataGrid绑定到模型集合

我是新来卡利本的。Micro,但已经做了一些基本的WPF MVVM编程,因此了解这些概念。我倾向于以模型优先的风格开发,因此绑定WPF时会出现问题 DataGrid 到在中定义和更新的集合 Model 。我应该如何最好地公开对 Collection 通过 ViewModel 到 View ,以便 模型 通过 视图模型 参考,而不必在 视图模型 ?

模型 :

public class Market : PropertyChangedBase
{
    private string _MarketGroup;
    public string MarketGroup
    {
        get
        {
            return _MarketGroup;
        }
        set
        {
            if (_MarketGroup != value)
            {
                _MarketGroup = value;
                NotifyOfPropertyChange(() => MarketGroup);
            }
        }
    }

    private string _Expiry;
    public string Expiry
    {
        get
        {
            return _Expiry;
        }
        set
        {
            if (_Expiry != value)
            {
                _Expiry = value;
                NotifyOfPropertyChange(() => Expiry);
            }
        }
    }

    private string _MarketStatus;
    public string MarketStatus
    {
        get
        {
            return _MarketStatus;
        }
        set
        {
            if (_MarketStatus != value)
            {
                _MarketStatus = value;
                NotifyOfPropertyChange(() => MarketStatus);
            }
        }
    }

    private string _Epic;
    public string Epic
    {
        get
        {
            return _Epic;
        }
        set
        {
            if (_Epic != value)
            {
                _Epic = value;
                NotifyOfPropertyChange(() => Epic);
            }
        }
    }

    private string _InstrumentName;
    public string InstrumentName
    {
        get
        {
            return _InstrumentName;
        }
        set
        {
            if (_InstrumentName != value)
            {
                _InstrumentName = value;
                NotifyOfPropertyChange(() => InstrumentName);
            }
        }
    }
}

public interface IMarketService : InotifyPropertyChanged
{
    BindableCollection<Market> Markets {get;}
    void RefreshMarkets();
}

public class MarketService : PropertyChangedBase, IMarketService
{
    public MarketService()
    {
        Markets = new BindableCollection<IGMarket>();
    }

    private BindableCollection<Market> _Markets;
    public BindableCollection<Market> Markets
    {
        get
        {
            return _Markets;
        }
        private set
        {
            if (_Markets!= value)
            {
                _Markets = value;
                NotifyOfPropertyChange(() => Markets);
            }
        }
    }

    public void RefreshMarkets()
    {
        Markets.Clear();

        var markets = GetMarkets();

        foreach (var market in markets)
        {
            Markets.Add(market);
        }
    }
}

视图模型 :

public class ShellViewModel : PropertyChangedBase
{
    private readonly IMarketService _MarketService;
    private readonly IAccountService _AccountService;

    public ShellViewModel(IMarketService marketService, IAccountService accountService)
    {
        _MarketService = marketService;
        _AccountService = accountService;

        Markets = new BindableCollection<IGMarket>(_MarketService.Markets);
    }

    public void Login()
    {
        Task.Run(() =>
        {
            if (_AccountService.Login())
            {
                LoggedIn = true;

                _MarketService.RefreshMarkets();
            }
        });
    }

    private BindableCollection<Market> _Markets;
    public BindableCollection<Market> Markets
    {
        get { return _Markets; }
        set
        {
            if (_Markets != value)
            {
                _Markets = value;
                NotifyOfPropertyChange(() => Markets);
            }
        }
    }
}

AccountService 和 MarketService 都在 AppBootsrapper 使用Simple Injector作为DI框架。

看法 :

<DataGrid AutoGenerateColumns="False" ColumnWidth="*" HorizontalAlignment="Stretch" x:Name="Markets" Margin="0,0,0,0" CanUserAddRows="False" CanUserDeleteRows="False"  VerticalAlignment="Stretch" Height="auto" Width="auto" Grid.ColumnSpan="2">
    <DataGrid.Columns>
        <DataGridTextColumn Binding="{Binding InstrumentName}" Header="Instrument Name" IsReadOnly="True"/>
        <DataGridTextColumn Binding="{Binding Expiry}" Header="Expiry" IsReadOnly="True"/>
        <DataGridTextColumn Binding="{Binding MarketGroup}" Header="Market Group" IsReadOnly="True"/>
        <DataGridTextColumn Binding="{Binding InstrumentType}" Header="Instrument Type" IsReadOnly="True"/>
        <DataGridTextColumn Binding="{Binding MarketStatus}" Header="Market Status" IsReadOnly="True"/>
    </DataGrid.Columns>
</DataGrid>

基本上 Grid 尽管 _MarketService.Markets 包含个项目。我想做 看法 和 视图模型 响应对的更改/更新 模型 BindableCollection 如果可能的话?

谢谢