blocks|key|496700|text|DependencyPropertyHelper.GetValueSource方法呢？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|496701|http://msdn.microsoft.com/en-us/library/system.windows.dependencypropertyhelper.getvaluesource.aspx|offset|length|496702|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|2R|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@$D|O|E|P|1|Q]]|A|$]]|$1|F|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|C]]]]

What about the method DependencyPropertyHelper.GetValueSource?

<a href="http://msdn.microsoft.com/en-us/library/system.windows.dependencypropertyhelper.getvaluesource.aspx" rel="nofollow">http://msdn.microsoft.com/en-us/library/system.windows.dependencypropertyhelper.getvaluesource.aspx</a>

blocks|key|480001|text|这对我来说很管用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|480002|<Button>
++++<Button.Content>
++++++++<TextBlock+Padding="20"+Text="Hello+world!"+/>
++++</Button.Content>
</Button>|code-block|syntax|javascript|480003|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 works for me:

<pre><code>&lt;Button&gt;
 &lt;Button.Content&gt;
 &lt;TextBlock Padding="20" Text="Hello world!" /&gt;
 &lt;/Button.Content&gt;
&lt;/Button&gt;
</code></pre>

blocks|key|975953|text|MSDN中有一个关于依赖属性值优先的页面。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|975954|这个问题为什么重要呢？当涉及到依赖属性值时，很少有人真正知道优先级的顺序。|975955|例如，您知道在DP的CoerceValueCallback中设置的任何值都会覆盖任何其他集合吗？|975956|我建议你浏览这个链接，从顶部开始(最强的一组，覆盖任何东西)到底部(最弱的一组，会被任何东西覆盖)，在那里有一个你的值被设定的水平。|975957|但是，如果你看看名单，你会注意到你已经排在第三位了！局部值所以你只有两个层次:动画和价值强制;)|975958|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/ms743230.aspx^0|A|7|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|T|8|@]|9|@$A|U|B|V|1|W]]|C|$]]|$1|D|3|E|5|6|7|X|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|Y|8|@]|9|@]|C|$]]|$1|H|3|I|5|6|7|Z|8|@]|9|@]|C|$]]|$1|J|3|K|5|6|7|10|8|@]|9|@]|C|$]]|$1|L|3|-4|5|6|7|11|8|@]|9|@]|C|$]]]|M|$N|$5|O|P|Q|C|$R|S]]]]

There is a page on <a href="http://msdn.microsoft.com/en-us/library/ms743230.aspx" rel="nofollow">Dependency Property Value Precedence</a> in the MSDN.

Why is it important? few people really know the order of precedence when it comes to dependency property values.

For example, did you know that whatever value you set in the CoerceValueCallback of a DP will overwrite any other set?

I'd suggest you go over that link and start from top (strongest set, will overwrite anything) to bottom (weakest set, will get overwritten by anything), there's a level in there where your value got set.

But hey, if you look at that list, you'll notice you're already in position 3! local value. So you only have 2 levels up: animation and value coercion ;)

blocks|key|975975|text|这个特殊的问题是由App.xaml中包含的资源中定义的样式造成的。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|975976|这里的重要教训是，没有x:Key属性的样式将影响目标类型的所有元素，正如所描述的这里。|975977|在<Style*TargetType="*Button上执行广泛的通配符搜索会产生可能影响我的按钮的潜在样式列表。我找到了一个没有x:Key属性的，注释掉了，只是想看看！垫子起作用了。|975978|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/ms745683.aspx#styling_basics^0|9|8|0|B|5|14|2|0|0|1|Q|1T|5|0^^$0|@$1|2|3|4|5|6|7|R|8|@$9|S|A|T|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@$9|X|A|Y|1|Z]]|E|$]]|$1|H|3|I|5|6|7|10|8|@$9|11|A|12|B|C]|$9|13|A|14|B|C]]|D|@]|E|$]]|$1|J|3|-4|5|6|7|15|8|@]|D|@]|E|$]]]|K|$L|$5|M|N|O|E|$P|Q]]]]

This particular problem was caused by a style defined in a resource included in the <code>App.xaml</code>. 

The important lesson here is that styles without the <code>x:Key</code> attribute will affect all elements of the target type as described <a href="http://msdn.microsoft.com/en-us/library/ms745683.aspx#styling_basics" rel="nofollow">here</a>.

Performing a solution wide wild card search on <code>&lt;Style*TargetType="*Button</code> yielded a list of potential styles that would affect my button. I found one without the <code>x:Key</code> attribute, commented it out just to try and voila! The padding works.

blocks|key|496736|text|我发现你自己的答案可能也不正确。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|496737|无论您在Button对象中放入什么内容，都会覆盖样式中定义的内容。|496738|我想，您在按钮中定义的填充没有做任何事情是因为，在您的默认样式中，ContentPresenter忽略了这一点，|496739|<ContentPresenter+Margin="{TemplateBinding+Padding}"|code-block|syntax|javascript|496740|填充是文本与按钮边框之间的距离，即该ContentPresenter的边距。|496741|entityMap^0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|Q|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|R|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|S|8|@]|9|@]|A|$]]|$1|M|3|-4|5|6|7|T|8|@]|9|@]|A|$]]]|N|$]]

I find your own answer might not be correct as well. 

Whatever you put in your Button object will overwrite what's defined in the style.

I guess the reason that the padding you defined inside the button doesn't do anything is because, in your default style, the ContentPresenter is missing this,

<pre><code>&lt;ContentPresenter Margin="{TemplateBinding Padding}"
</code></pre>

The padding is the distance between the text and the border of the button, that is, the margin of this ContentPresenter.

In a large WPF-project setting padding on buttons does not have any effect what so ever. No styles, templates, etc are set on the button, but still it won't use my padding.

<pre><code>&lt;StackPanel&gt;
 &lt;Button Padding="20, 20"&gt;Hello&lt;/Button&gt;
&lt;/StackPanel&gt;
</code></pre>

I tried this in a brand new project and it works like a charm. Obviously there is some global style, template somewhere in the project causing this. Either somewhere in the xaml file, or in some resource file. As this project is rather hefty I going through everything is not feasable.

How to I debug this? Can I see what is overriding the padding?

I tried snooping around with <a href="http://snoopwpf.codeplex.com/" rel="nofollow">Snoop 2.7.0</a>, but it didn't really tell me much. Any hints on how to proceed with this type of error?

<h2>EDIT</h2>

I loked at the <a href="http://msdn.microsoft.com/en-us/library/system.windows.dependencypropertyhelper.getvaluesource.aspx" rel="nofollow">ValueSource</a> for some properties:

<ul>
<li>Padding=Local</li>
<li>ContentTemplate=Default</li>
<li>Template=Style</li>
</ul>

Finding the cause of Style problems

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

在大型的WPF-项目设置中，填充按钮不会产生任何影响。没有样式，模板等设置在按钮上，但它仍然不会使用我的填充。<StackPanel> <Button Padding="20, 20">Hello</Button></StackPanel>我在一个全新的项目中尝试过这个，它的效果就像一种魅力。显然，在项目中的某个...

问找出风格问题的成因
EN

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问找出风格问题的成因EN