Windows phone 7 WP7从ListBoxItem样式绑定到listbox itemsource属性以外的其他属性

我在viewmodel中有如下属性：

public class TestObject
{
    public Color Color { get; set; }
    public IList<Items> { get; set; }
    ...
}

<ListBox ItemsSource="{Binding TestObject.Items}" ....

<Style TargetType="ListBoxItem">
           ...
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="ListBoxItem">
                        <Border x:Name="LayoutRoot" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" HorizontalAlignment="{TemplateBinding HorizontalAlignment}" VerticalAlignment="{TemplateBinding VerticalAlignment}">
                            <VisualStateManager.VisualStateGroups>
                                <VisualStateGroup x:Name="SelectionStates">
                                    <VisualState x:Name="Unselected"/>
                                    <VisualState x:Name="Selected">
                                        <Storyboard>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentContainer" Storyboard.TargetProperty="Foreground" Duration="0">
                                                <DiscreteObjectKeyFrame  KeyTime="0">
                                                    <DiscreteObjectKeyFrame.Value>
                                                        <SolidColorBrush Color="{**Binding to TestObject.Color ???}**" />
                                                    </DiscreteObjectKeyFrame.Value>
                                                </DiscreteObjectKeyFrame>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="Border" Storyboard.TargetProperty="Background" Duration="0">
                                                <DiscreteObjectKeyFrame  KeyTime="0">
                                                    <DiscreteObjectKeyFrame.Value>
                                                        <SolidColorBrush Color="{**Binding to TestObject.Color ???}**"/>
                                                    </DiscreteObjectKeyFrame.Value>
                                                </DiscreteObjectKeyFrame>
                                            </ObjectAnimationUsingKeyFrames>
                                        </Storyboard>
                                    </VisualState>
                                </VisualStateGroup>
                            </VisualStateManager.VisualStateGroups>

公共类TestObject
{
公共颜色{get；set；}
公共IList{get；set；}
...
}

视图中的列表框如下所示：

public class TestObject
{
    public Color Color { get; set; }
    public IList<Items> { get; set; }
    ...
}

<ListBox ItemsSource="{Binding TestObject.Items}" ....

<Style TargetType="ListBoxItem">
           ...
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="ListBoxItem">
                        <Border x:Name="LayoutRoot" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" HorizontalAlignment="{TemplateBinding HorizontalAlignment}" VerticalAlignment="{TemplateBinding VerticalAlignment}">
                            <VisualStateManager.VisualStateGroups>
                                <VisualStateGroup x:Name="SelectionStates">
                                    <VisualState x:Name="Unselected"/>
                                    <VisualState x:Name="Selected">
                                        <Storyboard>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentContainer" Storyboard.TargetProperty="Foreground" Duration="0">
                                                <DiscreteObjectKeyFrame  KeyTime="0">
                                                    <DiscreteObjectKeyFrame.Value>
                                                        <SolidColorBrush Color="{**Binding to TestObject.Color ???}**" />
                                                    </DiscreteObjectKeyFrame.Value>
                                                </DiscreteObjectKeyFrame>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetName="Border" Storyboard.TargetProperty="Background" Duration="0">
                                                <DiscreteObjectKeyFrame  KeyTime="0">
                                                    <DiscreteObjectKeyFrame.Value>
                                                        <SolidColorBrush Color="{**Binding to TestObject.Color ???}**"/>
                                                    </DiscreteObjectKeyFrame.Value>
                                                </DiscreteObjectKeyFrame>
                                            </ObjectAnimationUsingKeyFrames>
                                        </Storyboard>
                                    </VisualState>
                                </VisualStateGroup>
                            </VisualStateManager.VisualStateGroups>

---

我不确定你问题的控制风格部分。。。但是一般来说，如果我想绑定到当前项之外的内容，那么我会使用
ElementName
技巧使其工作-例如

 <Grid Name='RootLayout'>
     <ListBox ItemsSource='{Binding Items}'>
          <ListBox.ItemTemplate>
               <DataTemplate>
                    <TextBlock Text="{Binding Title}" Foreground="{Binding DataContext.PriorityColor, ElementName=RootLayout}" />
               </DataTemplate>
          </ListBox.ItemTemplate>
     </ListBox>
 </Grid>




我通常也不会在ViewModel中直接包含颜色，而是使用以下转换器：

 <TextBlock Text="{Binding Title}" Foreground="{Binding DataContext.Priority, ElementName=RootLayout, Converter={StaticResource PriorityToColorConverter}}" />



如果您正在进行跨平台的viewmodels，这将特别有用，因为颜色和笔刷类在WP7和WinRT之间没有共享，更不用说MonoTouch和MonoDroid了。
这可能是不可能的吗？那么另一个流程是：如何定制listbox的选定项？