WPF 缩放文本以仅在太大时适合
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原文地址: http://stackoverflow.com/questions/18069456/
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WPF scale text to fit only when too big
提问by Robert Petz
I am trying to setup a list of items in WPF which contains strings of random length (people's names). The majority of them are generally within a certain size, but occasionally you come across a string so long that it runs out of the bounds of it's container. I've normally just truncated it when it's too long, but I would much rather show the entirety of the string.
我正在尝试在 WPF 中设置一个包含随机长度字符串（人名）的项目列表。它们中的大多数通常都在一定的大小内，但偶尔您会遇到一个字符串太长以至于它超出了它的容器的边界。我通常只是在它太长时截断它，但我更愿意显示整个字符串。
How can I force the text to remain it's normal size, unless too big to fit...in which case scale it down to fit?
我怎样才能强制文本保持其正常大小，除非太大而不适合......在这种情况下将其缩小以适合？
NOTE: This is not the same as scaling all text to fit a certain size, which is accomplished using a viewbox around the text
注意：这与缩放所有文本以适应特定大小不同，这是使用文本周围的视图框完成的
IE: This is NOT what I want:
IE：这不是我想要的：
<Viewbox MaxWidth="100">
<TextBlock Text="{Binding EmployeeDisplayName, UpdateSourceTrigger=PropertyChanged}" HorizontalAlignment="Left" VerticalAlignment="Center"/>
</Viewbox>
This makes everything scale up when too small, as well as scale down when too big. I ONLY want it to scale down when too big and NEVER scale up when too small...
这使得所有东西在太小时都会放大，而在太大时会缩小。我只希望它在太大时按比例缩小，而在太小时时从不放大...
Any thoughts?
有什么想法吗？
回答by keyboardP
Use a Viewboxbut set its StretchDirectionproperty to DownOnly.
使用 aViewbox但将其StretchDirection属性设置为DownOnly。
<Viewbox MaxWidth="100" StretchDirection="DownOnly">
<TextBlock Text="{Binding EmployeeDisplayName, UpdateSourceTrigger=PropertyChanged}" HorizontalAlignment="Left" VerticalAlignment="Center"/>
</Viewbox>
