blocks|key|1235155|text|事实证明"\n“运行良好。我的网格有一个固定的大小，并且在按钮中没有可见的指示有更多可用文本(例如，没有"...“指示截止)。一旦我大方地扩展了网格的大小，按钮文本就显示在两行中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1235156|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

Turns out the "\n" works fine. My grid had a fixed size, and there is simply no visual indication in a button that there's more text available (e.g., no "..." indicating a cutoff). Once I generously expanded the size of my grid, the button text showed up in two rows.

blocks|key|1449964|text|或者直接使用XAML：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1449965|<Button>
+++<TextBlock>Two<LineBreak/>Lines</TextBlock>++
</Button>|code-block|syntax|javascript|1449966|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

OR in XAML directly:

<pre><code>&lt;Button&gt;
 &lt;TextBlock&gt;Two&lt;LineBreak/&gt;Lines&lt;/TextBlock&gt; 
&lt;/Button&gt;
</code></pre>

blocks|key|1235229|text|我更喜欢这样：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1235230|<Button+Width="100">
++<TextBlock+TextWrapping="Wrap">This+is+a+fairly+long+button+label</TextBlock>
</Button>|code-block|syntax|javascript|1235231|这对我很管用。|1235232|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I prefer this way:

<pre><code>&lt;Button Width="100"&gt;
 &lt;TextBlock TextWrapping="Wrap"&gt;This is a fairly long button label&lt;/TextBlock&gt;
&lt;/Button&gt;
</code></pre>

it worked for me.

blocks|key|1235379|text|答案很简单。只需使用&#xa;引入换行，即：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1235380|<Button+Content="Row+1+Text+&#xa;+Row+2+Text"/>|code-block|syntax|javascript|1235381|entityMap^0|A|5|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

Answer is very simple. Just use <code>&amp;#xa;</code> to introduce line-break, i.e.:

<pre><code>&lt;Button Content="Row 1 Text &amp;#xa; Row 2 Text"/&gt;
</code></pre>

blocks|key|1235303|text|这就是我们在这里的做法，它也可以很容易地居中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1235304|<Button+Height="40"+Width="75">
++++<StackPanel>
++++++++<TextBlock+Text="Line1"+HorizontalAlignment="Center"/>
++++++++<TextBlock+Text="Line2"+HorizontalAlignment="Center"/>
++++</StackPanel>
</Button>|code-block|syntax|javascript|1235305|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

This is how we do it here it allows for easy centering as well

<pre><code>&lt;Button Height="40" Width="75"&gt;
 &lt;StackPanel&gt;
 &lt;TextBlock Text="Line1" HorizontalAlignment="Center"/&gt;
 &lt;TextBlock Text="Line2" HorizontalAlignment="Center"/&gt;
 &lt;/StackPanel&gt;
&lt;/Button&gt;
</code></pre>

blocks|key|1235044|text|你试过这个吗？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1235045|b.Content+=+new+TextBlock+{+
++++Text+=+"Two\nLines",+
++++TextWrapping+=+TextWrapping.Wrap+};|code-block|syntax|javascript|1235046|如果这样做不起作用，那么您可以尝试添加一个StackPanel作为子元素，并在其中添加两个TextBlock元素。|1235047|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Have you tried this?
<pre><code>b.Content = new TextBlock { 
 Text = &quot;Two\nLines&quot;, 
 TextWrapping = TextWrapping.Wrap };
</code></pre>
If that doesn't work, then you could try adding a StackPanel as a child and adding two TextBlock elements to that.

blocks|key|1449837|text|这样如何：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1449838|TextBlock+textBlock+=+new+TextBlock();
textBlock.Inlines.Add("Two");
textBlock.Inlines.Add(new+LineBreak());
textBlock.Inlines.Add("Lines");
Button+button+=+new+Button();
button.Content+=+textBlock;|code-block|syntax|javascript|1449839|如果你使用的是C#+3，你可以把它改得更整洁一些：|1449840|Button+button+=+new+Button
{
++++Content+=+new+TextBlock+{+Inlines+=+{+"Two",+new+LineBreak(),+"Lines"+}+}
};|1449841|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

How about:

<pre><code>TextBlock textBlock = new TextBlock();
textBlock.Inlines.Add("Two");
textBlock.Inlines.Add(new LineBreak());
textBlock.Inlines.Add("Lines");
Button button = new Button();
button.Content = textBlock;
</code></pre>

If you're using C# 3 you can make that slightly neater:

<pre><code>Button button = new Button
{
 Content = new TextBlock { Inlines = { "Two", new LineBreak(), "Lines" } }
};
</code></pre>

blocks|key|1235473|text|我也有同样的问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1235474|我试过了：|1235475|button.content+=+"Line1\nLine2“(不起作用，可能我做错了什么)；用新标签替换按钮文本(不让文本居中对齐)；用文本块替换按钮文本(我认为这可以让文本居中对齐，但不会换行)；|1235476|我已经看到一些答案提到了堆叠板或网格的使用。|1235477|我已经看到过建议不要使用Textbox的回复。|offset|length|1235478|尽管OP说\n可以工作，但我不认为这是正确的方法，在我看来，你只是粗暴地强迫控件做你想做的事情，如果在任何时候你需要更改文本，你将不得不去检查文本是否正确换行，或者\n是否需要放在另一个位置。|style|CODE|1235479|我发现(对我来说)最好的方法是用一个文本框替换按钮内容(你可以直接拖放，不需要修改XAML)，并设置如下属性:+IsReadOnly+=+true；|1235480|可聚焦=+false+(可选)；|1235481|我认为Focusable+=+false阻止用户选择文本，即使他不能编辑它，我也不希望他选择它(个人喜好)。|1235482|这将使文本框的行为类似于标签，但具有允许文本居中对齐的优点。|1235483|entityMap|0|LINK|mutability|MUTABLE|url|https://msdn.microsoft.com/en-us/library/system.windows.controls.textbox(v=vs.110).aspx)^0|0|0|0|0|C|7|0|0|5|2|2A|2|0|0|0|3|H|0|0^^$0|@$1|2|3|4|5|6|7|15|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|16|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|17|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|18|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|19|8|@]|9|@$J|1A|K|1B|1|1C]]|A|$]]|$1|L|3|M|5|6|7|1D|8|@$J|1E|K|1F|N|O]|$J|1G|K|1H|N|O]]|9|@]|A|$]]|$1|P|3|Q|5|6|7|1I|8|@]|9|@]|A|$]]|$1|R|3|S|5|6|7|1J|8|@]|9|@]|A|$]]|$1|T|3|U|5|6|7|1K|8|@$J|1L|K|1M|N|O]]|9|@]|A|$]]|$1|V|3|W|5|6|7|1N|8|@]|9|@]|A|$]]|$1|X|3|-4|5|6|7|1O|8|@]|9|@]|A|$]]]|Y|$Z|$5|10|11|12|A|$13|14]]]]

I had the same issue.

I tried: 
- button.content = "Line1\nLine2" (didn't work, maybe I did something wrong); 
- replace button text with a new label (doesn't let you center align the text); 
- replace button text with a text block (I think this lets you center align the text but doesn't wrap it);

I've seen answers mentioning the use of stackpanels or grids. 
I've seen answers saying not to use a <a href="https://msdn.microsoft.com/en-us/library/system.windows.controls.textbox(v=vs.110).aspx" rel="nofollow noreferrer">Textbox</a>.

Even though the OP says that the <code>\n</code> works, I don't think that that is the way to go, in my opinion you're just brute forcing the control to do what you want and if at any point you need to change the text you will have to go and check if the text is correctly wrapped or if the <code>\n</code> needs to be in another position. 
What I found to be the best way to go (to me) is to replace the button content with a text box (you can just drag and drop, no need to mess with XAML) and set the following properties as stated:
IsReadOnly = true; 
Focusable = false (optional); 
I think <code>Focusable = false</code> prevents the user from selecting the text, even though he can't edit it, I don't want him to even select it (personal taste). 

This will make the text box behave similar to a label but with the advantage that lets you center align the text.

blocks|key|1450276|text|试试下面的代码：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1450277|<Button+Command="{Binding+DeliveryDateCommand}"+x:Name="cntlbtnf5"+Background="White"+BorderBrush="#FFABADB3"+Grid.Column="4">
+++<Border+BorderBrush="{x:Null}"+Height="Auto">
+++++<TextBlock+Text="Ctrl+%2B+F5+Delivery+BillDate"+TextWrapping="Wrap"+Width="110"+TextAlignment="Center"+Height="44"+/>
+++</Border>
</Button>|code-block|syntax|javascript|1450278|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try below code:

<pre><code>&lt;Button Command="{Binding DeliveryDateCommand}" x:Name="cntlbtnf5" Background="White" BorderBrush="#FFABADB3" Grid.Column="4"&gt;
 &lt;Border BorderBrush="{x:Null}" Height="Auto"&gt;
 &lt;TextBlock Text="Ctrl + F5 Delivery BillDate" TextWrapping="Wrap" Width="110" TextAlignment="Center" Height="44" /&gt;
 &lt;/Border&gt;
&lt;/Button&gt;
</code></pre>

blocks|key|1450354|text|作为替代/解决方法，如果你必须使用一个外部自定义按钮，你不能很容易地编辑它的内容，如果它可以是静态的，你可以总是使用一个网格，并将按钮的功能部分覆盖在你的视觉上。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1450355|<Grid>
++<TextBlock+Foreground="LightGray">Click<LineBreak+/>Here</TextBlock>
++<MyCustomButton+BorderBrush="Transparent"+IsPressed="{Binding+MyBtn.IsPressed,+Mode=TwoWay}"+/>
</Grid>|code-block|syntax|javascript|1450356|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

As an alternative/workaround if you gotta use an external custom button which you can't edit its content easily, you can always use a Grid and overlay the functional part of the button over your visual if it can be static.
<pre><code>&lt;Grid&gt;
 &lt;TextBlock Foreground=&quot;LightGray&quot;&gt;Click&lt;LineBreak /&gt;Here&lt;/TextBlock&gt;
 &lt;MyCustomButton BorderBrush=&quot;Transparent&quot; IsPressed=&quot;{Binding MyBtn.IsPressed, Mode=TwoWay}&quot; /&gt;
&lt;/Grid&gt;
</code></pre>

How do I get multi-line text on a WPF Button using only C#? I have seen examples of using <code>&lt;LineBreak/&gt;</code> in XAML, but my buttons are created completely programmatically in C#. The number and labels on the buttons correspond to values in the domain model, so I don't think I can use XAML to specify this.

I have tried the naive approach below, but it does not work.

<pre><code>Button b = new Button();
b.Content = "Two\nLines";
</code></pre>

or

<pre><code>b.Content = "Two\r\nLines";
</code></pre>

In either case, all i see is the first line ("Two") of the text.

Multiline Text in a WPF Button

如何仅使用C#在WPF Button上获取多行文本？我见过在XAML中使用<LineBreak/>的示例，但我的按钮完全是在C#中以编程方式创建的。按钮上的数字和标签对应于域模型中的值，所以我不认为可以使用XAML来指定它。我已经尝试了下面这种简单的方法，但它不起作用。Button b = new Button();b.Content = "Two\nLines";或b.Content = "Tw

问WPF按钮中的多行文本
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