如何在XAML中使用枚举类型?-HowcanIuseenumtypesinXAML?

41  

I had a similar question here, and my end result was to create a generic IValueConverter that passed the enum value I wanted to match in as the ConverterParameter, and it returns true or false depending on if the bound value matches the (int) value of the Enum.

我在这里有一个类似的问题，我的最终结果是创建一个通用的IValueConverter，它传递了我想作为ConverterParameter匹配的enum值，它返回true或false，具体取决于绑定值是否匹配enum的(int)值。

The end result looks like this:

最终结果如下:

XAML Code:

XAML代码:

Converter

转换器

public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
    if (parameter == null || value == null) return false;

    if (parameter.GetType().IsEnum && value is int)
    {
        return (int)parameter == (int)value;
    } 
    return false;
}

9  

You just need to make sure that your namespace is accounted-for in your XAML header then you can reference both custom DPs and enum values directly in your markup.

您只需要确保您的名称空间在XAML头中是记帐的，然后您就可以直接在标记中引用自定义的DPs和enum值。

For example I use this code to do just that:

例如，我用这个代码来做:

Note that you can't access DataTriggers in a Style, you need to instead make a DataTemplate or ControlTemplate for that (however, .NET 4 adds the ability to set triggers in styles). You can override the ControlTemplate from a Style like so:

注意，您不能以一种样式访问数据访问程序，您需要为此创建一个DataTemplate或ControlTemplate(然而，. net 4增加了在样式中设置触发器的能力)。您可以从以下样式重写ControlTemplate:

For DataTemplates you want to have bindings to an object, you can simply use a ContentPresenter and set its content to the object you want to display along with a DataTemplate definition to use for display of the object. There's always a way to use DataTriggers it's just not always direct or as simple as using a Style.

对于想要对对象进行绑定的DataTemplate，您可以简单地使用ContentPresenter并将其内容设置为要显示的对象，以及用于显示对象的DataTemplate定义。总有一种使用DataTriggers的方式，只是不总是直接的，也不像使用样式那么简单。