blocks|key|11290|text|如果你能得到网格控制，那么试着使用下面的代码|type|unstyled|depth|inlineStyleRanges|entityRanges|data|11291|TextBlock+textBlock2+=+(TextBlock)gridInTemplate.Children[1];|code-block|syntax|javascript|11292|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|$]]

If you can get grid control, then try using below code

<pre><code>TextBlock textBlock2 = (TextBlock)gridInTemplate.Children[1];
</code></pre>

blocks|key|227842|text|您可以使用VisualTreeHelper来迭代按钮的可视树，以获得任何子级。您可以使用这个基本的泛型函数来获取它|type|unstyled|depth|inlineStyleRanges|entityRanges|data|227843|private+static+DependencyObject+RecursiveVisualChildFinder<T>(DependencyObject+rootObject)++
{++
++++var+child+=+VisualTreeHelper.GetChild(rootObject,+0);++
++++if+(child+==+null)+return+null;++

++++return+child.GetType()+==+typeof+(T)+?+child+:+RecursiveVisualChildFinder<T>(child);++
}|code-block|syntax|javascript|227844|你可以像这样使用它|227845|TextBlock+textblock+=+RecursiveVisualChildFinder<TextBlock>(btnWedding);
if(textblock.Name+==+"textBlock2")
{//+Do+your+stuff+here
}|227846|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|$]]

you can use VisualTreeHelper to iterate the visual tree of button to get any child. You can use this basic generic function to get it

<pre><code>private static DependencyObject RecursiveVisualChildFinder&lt;T&gt;(DependencyObject rootObject) 
{ 
 var child = VisualTreeHelper.GetChild(rootObject, 0); 
 if (child == null) return null; 

 return child.GetType() == typeof (T) ? child : RecursiveVisualChildFinder&lt;T&gt;(child); 
}
</code></pre>

you can use it like

<pre><code>TextBlock textblock = RecursiveVisualChildFinder&lt;TextBlock&gt;(btnWedding);
if(textblock.Name == "textBlock2")
{// Do your stuff here
}
</code></pre>

blocks|key|227905|text|您的代码是正确的，但可能不是在正确的位置...只有在应用了模板之后，FindName才会起作用。通常，当您在自定义控件中重写OnApplyTemplate时使用它。由于您不是在创建自定义控件，因此可以在按钮的已加载事件中创建自定义控件。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|227906|entityMap^0|Y|8|1Q|F|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

Your code is correct, but probably not in the right place... <code>FindName</code> will only work after the template has been applied. Typically, you use it when you override <code>OnApplyTemplate</code> in a custom control. Since you're not creating a custom control, you can do it in the Loaded event of the button.

blocks|key|11447|text|如果你已经覆盖了OnApplyTemplate，那么不要对VisualTreeHelper使用FindResource()或Template.FindName()或任何hack。只需使用this.GetTemplateChild("textBlock2");即可|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|11448|WPF中的模板有一个自包含的命名镜。这是因为模板被重复使用，并且当控件的多个实例都实例化其模板时，模板中定义的任何名称都不能保持唯一。实例化模板后，调用GetTemplateChild方法返回对来自模板的对象的引用。不能使用FrameworkElement.FindName方法从模板中查找项，因为FrameworkElement.FindName的作用范围更广，而且一旦应用ControlTemplate类本身和实例化的模板之间就没有任何连接。|11449|请查看此链接：|11450|http://msdn.microsoft.com/en-us/library/system.windows.frameworkelement.gettemplatechild.aspx|11451|如果你的例子是microsoft+example，那么我建议你再读一遍。你可能跳过了一些东西。|11452|http://msdn.microsoft.com/en-us/library/bb613586.aspx|11453|总而言之-在创作自定义控件时使用GetTemplateChild()，例如OnApplyTemplate，在其他情况下使用Template.FindName。|11454|entityMap|0|LINK|mutability|MUTABLE|url|1^0|2L|10|0|0|0|0|2L|0|0|0|0|1H|1|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@$9|10|A|11|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|12|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|13|8|@]|D|@]|E|$]]|$1|J|3|K|5|6|7|14|8|@]|D|@$9|15|A|16|1|17]]|E|$]]|$1|L|3|M|5|6|7|18|8|@]|D|@]|E|$]]|$1|N|3|O|5|6|7|19|8|@]|D|@$9|1A|A|1B|1|1C]]|E|$]]|$1|P|3|Q|5|6|7|1D|8|@]|D|@]|E|$]]|$1|R|3|-4|5|6|7|1E|8|@]|D|@]|E|$]]]|S|$T|$5|U|V|W|E|$X|K]]|Y|$5|U|V|W|E|$X|O]]]]

If you have overriden OnApplyTemplate then do not use FindResource() or Template.FindName() or any hacks with VisualTreeHelper. Just use <code>this.GetTemplateChild("textBlock2");</code>

Templates in WPF have a self-contained namescope. This is because templates are re-used, and any name defined in a template cannot remain unique when multiple instances of a control each instantiate its template. Call the GetTemplateChild method to return references to objects that come from the template after it is instantiated. You cannot use the FrameworkElement.FindName method to find items from templates because FrameworkElement.FindName acts in a more general scope, and there is no connection between the ControlTemplate class itself and the instantiated template once it is applied.

Check this link out:

<a href="http://msdn.microsoft.com/en-us/library/system.windows.frameworkelement.gettemplatechild.aspx">http://msdn.microsoft.com/en-us/library/system.windows.frameworkelement.gettemplatechild.aspx</a>

If your example is microsoft example then I suggest you to read it again. You might have skipped something.

<a href="http://msdn.microsoft.com/en-us/library/bb613586.aspx">http://msdn.microsoft.com/en-us/library/bb613586.aspx</a>

To sum up - Use GetTemplateChild() when authoring custom control e.g. OnApplyTemplate, and use Template.FindName in other situations.

blocks|key|228009|text|方法"FrameworkElement.FindName(string+name)“使用布局的名称范围，其中按钮/控件用于解析名称。简而言之，您可以使用它在应用程序布局的网格或堆栈面板中查找子项。但是您不能使用相同的方法来查找已在应用程序布局中使用的控件的子控件(因为模板化的孩子名称位于不同的作用域中)|type|unstyled|depth|inlineStyleRanges|entityRanges|data|228010|让孩子适应你的情况的一种方法是继承按钮。由于您不会修改该按钮的任何其他属性或行为，因此新按钮将像普通按钮一样工作。实际上，我从来没有使用过这样的方法来访问模板化的子类，因为我从来没有需要在控件类的范围之外使用它们。|228011|public+class+WeddingButton+:+Button
{
++++public+override+void+OnApplyTemplate()
++++{
++++++++TextBlock+textBlock+=+this.GetTemplateChild("textBlock2")+as+TextBlock;
++++++++base.OnApplyTemplate();
++++}
}

<Page.Resources>
++++<ControlTemplate+x:Key="WeddingButtonBigTemplate"+TargetType="Button">
++++++++<Grid>
++++++++++++<Image+x:Name="imgNormal"+Source="../Images/Married_button2.png"/>
++++++++++++<TextBlock+x:Name="textBlock2"+Style="{StaticResource+RegularBlueSpecialBoldText}"+LineHeight="28"+LineStackingStrategy="BlockLineHeight"+HorizontalAlignment="Center"+Margin="10,30,10,70"+TextWrapping="Wrap"+TextAlignment="Center"+VerticalAlignment="Stretch"+>
++++++++++++++++<Run+FontSize="20"+Text="The+event+of"></Run>
++++++++++++++++<Run+FontSize="28"+Text="{DynamicResource+strBride}"></Run>
++++++++++++</TextBlock>
++++++++</Grid>
++++</ControlTemplate>
</Page.Resources>

<Grid+HorizontalAlignment="Center"+VerticalAlignment="Top"+Width="1000">
++++<WeddingButton+x:Name="btnWedding"+HorizontalAlignment="Left"+Margin="10,20,0,-49"+VerticalAlignment="Top"+Template="{StaticResource+WeddingButtonBigTemplate}"+Foreground="#FF2B4072"+Width="380"+Click="btnClick"+/>
</Grid>|code-block|syntax|javascript|228012|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

The method "FrameworkElement.FindName(string name)" uses the namescope of the layout where the button/control is used to resolve the names. In short you can use this to find children in a grid or stack panel in your application layout. But you cannot use the same to find the children of a control which you have used in your application layout(because the templated chidren names are in a different scope)

One way you can get the children in your situation is to inherit the button. Since you will not be modifying any other property or behavior of the button the new button would work as normal one. Practically I have never used such a method of accessing the templated children as I never had the need to use them outside the scope of the control's class. 

<pre><code>public class WeddingButton : Button
{
 public override void OnApplyTemplate()
 {
 TextBlock textBlock = this.GetTemplateChild("textBlock2") as TextBlock;
 base.OnApplyTemplate();
 }
}

&lt;Page.Resources&gt;
 &lt;ControlTemplate x:Key="WeddingButtonBigTemplate" TargetType="Button"&gt;
 &lt;Grid&gt;
 &lt;Image x:Name="imgNormal" Source="../Images/Married_button2.png"/&gt;
 &lt;TextBlock x:Name="textBlock2" Style="{StaticResource RegularBlueSpecialBoldText}" LineHeight="28" LineStackingStrategy="BlockLineHeight" HorizontalAlignment="Center" Margin="10,30,10,70" TextWrapping="Wrap" TextAlignment="Center" VerticalAlignment="Stretch" &gt;
 &lt;Run FontSize="20" Text="The event of"&gt;&lt;/Run&gt;
 &lt;Run FontSize="28" Text="{DynamicResource strBride}"&gt;&lt;/Run&gt;
 &lt;/TextBlock&gt;
 &lt;/Grid&gt;
 &lt;/ControlTemplate&gt;
&lt;/Page.Resources&gt;

&lt;Grid HorizontalAlignment="Center" VerticalAlignment="Top" Width="1000"&gt;
 &lt;WeddingButton x:Name="btnWedding" HorizontalAlignment="Left" Margin="10,20,0,-49" VerticalAlignment="Top" Template="{StaticResource WeddingButtonBigTemplate}" Foreground="#FF2B4072" Width="380" Click="btnClick" /&gt;
&lt;/Grid&gt;
</code></pre>

blocks|key|228042|text|尝试以下代码。这将返回模板化的元素。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|228043|this.GetTemplateChild("ControlName");|code-block|syntax|javascript|228044|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 the following code. This will return the templated element.

<pre><code>this.GetTemplateChild("ControlName");
</code></pre>

blocks|key|11577|text|对于其他可能仍然在这里跌跌撞撞的人。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|11578|默认情况下，我可以控制屏幕上的Visibility=“折叠”。即使我在窗口构造函数中切换了可见性，它也没有初始化模板。必须在FindName()之前调用控件上的ApplyTemplate()才能获得结果。|11579|stationElement.ApplyTemplate();
var+PART_DATA+=+stationElement.Template.FindName("PART_DATA",+stationElement);|code-block|syntax|javascript|11580|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

For others who may still stumble here.
I had control on the screen that had Visibility=&quot;Collapsed&quot; by default. Even though I toggled the visibility in the window constructor it hadn't initialized the template. Had to call ApplyTemplate() on the control before FindName() to get result.
<pre><code>stationElement.ApplyTemplate();
var PART_DATA = stationElement.Template.FindName(&quot;PART_DATA&quot;, stationElement);
</code></pre>

This is the xaml:

<pre><code>&lt;Page.Resources&gt;
 &lt;ControlTemplate x:Key="WeddingButtonBigTemplate" TargetType="Button"&gt;
 &lt;Grid&gt;
 &lt;Image x:Name="imgNormal" Source="../Images/Married_button2.png"/&gt;
 &lt;TextBlock x:Name="textBlock2" Style="{StaticResource RegularBlueSpecialBoldText}" LineHeight="28" LineStackingStrategy="BlockLineHeight" HorizontalAlignment="Center" Margin="10,30,10,70" TextWrapping="Wrap" TextAlignment="Center" VerticalAlignment="Stretch" &gt;
 &lt;Run FontSize="20" Text="The event of"&gt;&lt;/Run&gt;
 &lt;Run FontSize="28" Text="{DynamicResource strBride}"&gt;&lt;/Run&gt;
 &lt;/TextBlock&gt;
 &lt;/Grid&gt;
 &lt;/ControlTemplate&gt;
&lt;/Page.Resources&gt;

&lt;Grid HorizontalAlignment="Center" VerticalAlignment="Top" Width="1000"&gt;
 &lt;Button x:Name="btnWedding" HorizontalAlignment="Left" Margin="10,20,0,-49" VerticalAlignment="Top" Template="{StaticResource WeddingButtonBigTemplate}" Foreground="#FF2B4072" Width="380" Click="btnClick" /&gt;
&lt;/Grid&gt;
</code></pre>

I'm tring to get access to the TextBlock named <code>textBlock2</code>. 
I've tried to override <code>OnApplyTemplate</code> but got null.

I've tried:

<pre><code>Grid gridInTemplate = (Grid)btnWedding.Template.FindName("grid", btnWedding);
var ct0 = btnWedding.Template.FindName("textBlock2", btnWedding);
var ct1 = btnWedding.FindName("textBlock2");
var ct2 = btnWedding.FindResource("textBlock2");
</code></pre>

The gridInTemplate is null (sample taken from MSDN). 
The ct# are all null, of course.

What am I missing here?

Accessing a control inside a ControlTemplate

这是xaml：<Page.Resources> <ControlTemplate x:Key="WeddingButtonBigTemplate" TargetType="Button"> <Grid> <Image x:Name="imgNormal" Source="../...

问访问ControlTemplate中的控件
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