WPF 文本换行与 WrapWithOverflow
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WPF text Wrap vs WrapWithOverflow
提问by Daniele Armanasco
What's the "conceptual" difference between TextWrapping="Wrap"and TextWrapping="WrapWithOverflow"(e.g. for a TextBox)?
In the MSDN page about the class TextBox there is nothing ...
Thank you.
TextWrapping="Wrap"和TextWrapping="WrapWithOverflow"（例如对于文本框）之间的“概念”区别是什么？在有关 TextBox 类的 MSDN 页面中，什么也没有......谢谢。
回答by ken
Some examples:
一些例子：
This is the original, unwrapped version:
这是原始的未包装版本：
This is NoWrap.
这是NoWrap。
This is Wrap. The words Removeand Samplehave been wrapped at the veand le, respectively, even though there is no line break opportunity.
这是Wrap。即使没有换行机会，单词RemoveandSample也分别被包裹在ve和处le。
This is WrapWithOverflow. The veand leare not visible (they overflow the available block width) because there is no line break opportunity. The All, in both cases, has been wrapped because the spacecharacter is a line break opportunity.
这是WrapWithOverflow。的ve和le不可见（溢流出可用块宽度），因为没有换行。的All，在这两种情况下，已进行了换，因为space字符是一个换行。
Edit:
编辑：
As suggested in the comments, here's some examples of how Wraptreats spaces. When Widthis 100, Wrapand WrapWithOverfloware identical. Wraptreats the space between widerand exampleas a line-break opportunity, so exampleis put on a new line to preserve the entire, continuous word.
正如评论中所建议的，这里有一些关于如何Wrap处理空格的示例。当Width是100，Wrap和WrapWithOverflow是相同的。Wrap治疗之间的空间wider，并example作为一个断行机会，所以example放在一个新行保留整个连续字。
回答by Arsen Mkrtchyan
WrapWithOverflowLine-breaking occurs if the line overflows beyond the available block width. However, a line may overflow beyond the block width if the line breaking algorithm cannot determine a line break opportunity, as in the case of a very long word constrained in a fixed-width container with no scrolling allowed.
NoWrapNo line wrapping is performed.
WrapLine-breaking occurs if the line overflows beyond the available block width, even if the standard line breaking algorithm cannot determine any line break opportunity, as in the case of a very long word constrained in a fixed-width container with no scrolling allowed.
WrapWithOverflow如果行溢出超过可用块宽度，则会发生换行。但是，如果换行算法无法确定换行机会，则行可能会溢出超过块宽度，例如在不允许滚动的固定宽度容器中约束非常长的单词的情况下。
NoWrap不执行换行。
换行 如果行溢出超过可用块宽度，即使标准换行算法无法确定任何换行机会，也会发生换行，就像在固定宽度容器中限制的非常长的单词一样，不允许滚动。
Hope this helps
希望这可以帮助
回答by Vimes
One thing to add to the other answers, WrapWithOverflow lets you use text trimming (ellipsis) on the long words that get cut off:
要添加到其他答案中的一件事，WrapWithOverflow 允许您对被截断的长单词使用文本修剪（省略号）：
<TextBlock TextWrapping="WrapWithOverflow" Width="120" TextTrimming="CharacterEllipsis">
A really long word is antidisestablishmentarianism and we can use ellipsis trimming.
</TextBlock>
