WPF按钮textwrap风格 [英] WPF button textwrap style

问题描述

我要如何改变一个按钮的默认textwrapping风格在WPF？

How do I change the default textwrapping style of a button in WPF?

的显而易见的解决方案：

The obvious solution of:

<Style x:Key="MyButtonStyle" TargetType="{x:Type Button}">
    <Setter Property="TextWrapping" Value="Wrap"></Setter>
</Style>

不起作用，因为Textwrapping不是一个可设置属性在这里，显然。

doesn't work, because Textwrapping isn't a settable property here, apparently.

如果我尝试：

<Style x:Key="MyButtonStyle" TargetType="{x:Type Button}">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type Button}">
                <TextBlock Text="{Binding}" Foreground="White" FontSize="20" FontFamily="Global User Interface" TextWrapping="Wrap"/>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

我刚刚得到来自编译器的一个毫无价值的响应：

I just get a worthless response from the compiler:

Error   5	After a 'SetterBaseCollection' is in use (sealed), it cannot be modified.

拆卸的ControlTemplate标记保持错误。

Removing the ControlTemplate tag keeps the error.

下面的尝试产生了不同的错误：

The following attempt yields a different error:

    <Setter Property="TextBlock">
        <TextBlock Text="{Binding}" Foreground="White" FontSize="20" FontFamily="Global User Interface" TextWrapping="Wrap"/>
    </Setter>

Error   5	The type 'Setter' does not support direct content.

我知道我可以为每个单独的按钮textwrapping，但这是pretty愚蠢。我如何能做到这一点作为一个风格？什么是魔法的话？

I see that I can set the textwrapping for each button individually, but that's pretty asinine. How can I do it as a style? What are the magic words?

和以供将来参考，我在哪里可以找到这些神奇的单词的列表，所以我可以做我自己？ MSDN的条目是pretty没用的，当我尝试了解哪些属性可以由设定器来设定。

And for future reference, where can I find a list of these magic words, so I can just do this on my own? The MSDN entry is pretty useless when I try to find out about which properties can be set by the setter.

推荐答案

您第二个版本应该工作，并且做对我来说，与您需要更改TextBlock的文本绑定警告：

Your second version should work, and does for me, with the caveat that you need to change the TextBlock Text binding:

<!-- in Window.Resources -->
<Style x:Key="fie" TargetType="Button">
  <Setter Property="Template">
    <Setter.Value>
      <ControlTemplate TargetType="{x:Type Button}">
        <TextBlock Text="{TemplateBinding Content}" FontSize="20" TextWrapping="Wrap"/>
      </ControlTemplate>
    </Setter.Value>
  </Setter>
</Style>

<!-- then -->
<Button Style="{StaticResource fie}">verylongcaptiongoeshereandwraps/Button>

请注意这完全替换按钮样式（即你需要创建自己的按钮镀铬，如果你想的话）。

Note this completely replaces the button style (i.e. you will need to create your own button chrome if you want it).

关于你提到的第二个问题，所有可写的依赖属性可以使用二传手进行设置。你无法设置TextWrapping上通过的风格按钮的原因是，巴顿没有一个TextWrapping依赖属性（或任何TextWrapping属性）。有没有神奇的话，依赖属性的只是名字。

Regarding your second question, all writeable dependency properties can be set using a Setter. The reason you were unable to set TextWrapping on a Button via a style is that Button does not have a TextWrapping dependency property (or indeed any TextWrapping property). There are no "magic words," just the names of dependency properties.

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