在将前景颜色绑定到一段数据时，通常有两种很好的方法供您选择.根据您询问的对象，不同的人会有不同的偏好.所以……两者都有！

There are generally two good approaches for you to choose from, when binding the Foreground color to a piece of data. Depending on who you ask, different people will have different preferences. So... here's both!

当满足一组特定条件时，此方法基本上可以识别特殊"行为.在这种情况下，我们将前景色更改为灰色，当状态 ==无需维护"

This method basically identifies 'special' behavior when a certain set of conditions are met. In this case, we're changing the foreground color to Gray, when the status == "No Maintenance Required"

<Style TargetType="TextBlock">
    <Setter Property="Foreground" Value="Black" /> <!-- default value -->
    <Style.Triggers>
        <DataTrigger Binding="{Binding Text, RelativeSource={RelativeSource Self}" Value="No Maintenance Required">
            <Setter Property="Foreground" Value="Gray" /> <!-- special behavior -->
        </DataTrigger>
    </Style.Triggers>
</Style>

在这种情况下，只需为您的 TextBlock 分配适当的 Style 属性.

In this case, just assign your TextBlock the appropriate Style property.

这种方法创建了一个自定义的IValueConverter 实现，它将您的文本值转换为颜色.从那里，我们直接绑定到我们的文本值，并确保转换器始终提供正确的颜色.

This approach creates a custom "IValueConverter implementation, which converts your Text value to a Color. From there, we bind directly to our text value, and ensure that the converter always provides the proper color.

public class MaintenaceColorConverter : IValueConverter
{

    public Color NormalColor { get; set; }
    public Color NoMaintenanceRequiredColor { get; set; }

    public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        if (value.ToString() == "No Maintenance Required")
            return NoMaintenanceRequiredColor;

        return NormalColor;
    }

    public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
    {
        throw new NotImplementedException();
    }
}

在您的 XAML 中:

In your XAML:

<Window.Resources>
    <local:MaintenaceColorConverter x:Key="myColorConverter" NormalColor="Black" NoMaintenanceRequiredColor="Gray" />
</Window.Resources>

在您的文本块中:

<TextBlock Text="{Binding MaintStatus}" Foreground="{Binding MaintStatus, Converter={StaticResource myColorConverter}}" />

改进

使用这些方法中的任何一种，***有一个 MaintenanceStatus 布尔值或枚举值，并将您的样式条件绑定到该值.使用字符串比较是一个坏主意.那只是自找麻烦.这些示例使用了字符串比较，因为……好吧……这就是您提供的示例代码中的全部内容.

Improvements

With either of these approaches, it would be better to have a MaintenanceStatus boolean or enum value, and bind your styling conditions to that. It's a bad idea to use string-comparisons. That's just begging for trouble. These examples used string comparison because... well... that's all that was available from your provided example code.