使用WPF中值转换器，而无需他们先定义为资源 [英] Using Value Converters in WPF without having to define them as resources first

问题描述

时有可能使用值转换器，而无需事先将它们定义为资源？

Is it possible to use value converters without having to define them beforehand as resources?

现在我有

<Window.Resources>
    <local:TrivialFormatter x:Key="trivialFormatter" />
</Window.Resources>

和

<Button Width="{Binding Width, ElementName=textBox1, UpdateSourceTrigger=PropertyChanged, Converter={StaticResource trivialFormatter}}" Height="50">

那岂不是可能的，而不必申报trivialFormatter资源在Window.Resources，我可以直接从按钮的宽度结合参考呢？类似

Wouldn't it be possible that instead of having to declare the trivialFormatter resource in Window.Resources, I could directly refer it from the Button's width binding? Something like

Converter = {local:TrivialFormatter}

感谢

推荐答案

在单型的情况下的IValueConverter S（例如，他们不需要从当前的绑定实例任何状态）我用静止变流器，例如：

In the case of singleton-type IValueConverters (e.g. they don't need any state from the current binding instance) I use static converters, i.e.:

Converter={x:Static SomeNamespace:SomeConverter.Instance}

还有一个伟大的职位由博士WPF使用标记扩展，使它更清洁的内联的这里。

There's also a great post by Dr. WPF on using a markup extension to make it cleaner inline here.

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