如何在Caliburn Micro中为嵌套视图模型提供设计时支持？

Question

使用VS2013和Caliburn.Micro 2.0.2

鉴于这个例子：

1. 具有嵌套视图模型属性和
的shell视图模型
2. shell和嵌套视图模型都具有class MyTestCase(TestCase): def setUp(): # Flush any cached values request.bind({}) 属性：



似乎在设计时，嵌套视图模型属性被忽略。有没有办法支持这个？

Name

public class NestedViewModel : PropertyChangedBase
{
    private string _name;

    public string Name
    {
        get { return _name; }
        set
        {
            _name = value;
            NotifyOfPropertyChange(() => Name);
        }
    }

    public NestedViewModel()
    {
        Name = "Nested";
    }
}

绿色标签显示设计器中嵌套视图模型的正确<UserControl x:Class="WpfApplication1.Views.NestedView" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:cal="http://www.caliburnproject.org" xmlns:viewModels="clr-namespace:WpfApplication1.ViewModels" mc:Ignorable="d" d:DataContext="{d:DesignInstance Type=viewModels:NestedViewModel, IsDesignTimeCreatable=True}" cal:Bind.AtDesignTime="True"> <Grid> <Label x:Name="Name" FontSize="16" Background="LightGreen"/> </Grid> </UserControl> ：



Name

public class ShellViewModel : PropertyChangedBase
{
    private string _name;
    private NestedViewModel _nestedViewModel;

    public string Name
    {
        get { return _name; }
        set
        {
            _name = value;
            NotifyOfPropertyChange(() => Name);
        }
    }

    public NestedViewModel NestedViewModel
    {
        get { return _nestedViewModel; }
        set
        {
            if (Equals(value, _nestedViewModel)) return;
            _nestedViewModel = value;
            NotifyOfPropertyChange(() => NestedViewModel);
        }
    }

    public ShellViewModel()
    {
        NestedViewModel = new NestedViewModel();
        Name = "Shell";
    }
}

绿色标签应该在设计器中显示嵌套视图模型<UserControl x:Class="WpfApplication1.Views.ShellView" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:viewModels="clr-namespace:WpfApplication1.ViewModels" xmlns:cal="http://www.caliburnproject.org" mc:Ignorable="d" d:DataContext="{d:DesignInstance Type=viewModels:ShellViewModel, IsDesignTimeCreatable=True}" cal:Bind.AtDesignTime="True"> <Grid> <Grid.RowDefinitions> <RowDefinition/> <RowDefinition/> </Grid.RowDefinitions> <ContentControl Grid.Row="0" x:Name="NestedViewModel"/> <Label Grid.Row="1" x:Name="Name" FontSize="16" Background="RoyalBlue"/> </Grid> </UserControl> 属性，而是显示shell视图模型的值：



它在运行时正确绑定：



Example