如何将数据绑定到一个静态属性在非静态类？

问题描述

在我的视图模型 I类有一个静态属性 AllSupport ，但我无法弄清楚如何绑定正确。 ListView控件已经绑定到一个ObservableCollection AllEffects 具有 AllSupport 静态属性。

In my ViewModel class I have a static property AllSupport but I can't figure out how to bind it correctly. The ListView is already binded to an ObservableCollection AllEffects that has the AllSupport static property.

我用这样的：

<GridViewColumn
    Width="Auto"
    Header="GPU">
    <GridViewColumn.CellTemplate>
        <DataTemplate>
            <CheckBox
                Margin="0"
                HorizontalAlignment="Center"
                IsChecked="{Binding AllSupport[HardwareType].SupportList.IsSupported, Mode=TwoWay}"/>
        </DataTemplate>
    </GridViewColumn.CellTemplate>
</GridViewColumn>

它有

AllEffects 是的ObservableCollection EffectViewModel 所谓静态属性 AllSupport 这是类型：词典＆LT; HardwareType，名单，其中，EffectSupport＆GT;＆GT; 其中：

AllEffects is ObservableCollection of EffectViewModel where it has a static property called AllSupport which is of type:Dictionary<HardwareType, List<EffectSupport>> where:

HardwareType 是一个枚举，和 EffectSupport 的是，有一个叫做布尔属性类的实例则isSupported 。

HardwareType is an enum, andEffectSupport is an instance class that has a boolean property called IsSupported.

我也试过，但随后它抱怨找不到则isSupported 在视图模型类：

I also tried this but then it complains that it can't find IsSupported on the ViewModel class:

IsChecked="{Binding AllSupport[HardwareType].SupportList, Path=IsSupported

任何想法，如何指定绑定？

Any ideas, how to specify this binding?

推荐答案

您可以使用 X：静态类是静态的还是不来访问静态成员

You can use x:Static whether the class is static or not to access static members.

未经测试的：

IsChecked="{Binding [HardwareType], Source={x:Static prefix:EffectViewModel.AllSupport}}"

和你需要一个 preFIX 来访问您的视图模型的命名空间。

and you'll need a prefix to access your view model's namespace.

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