Silverlight中的DataTemplate内访问元素

本文介绍了Silverlight中的DataTemplate内访问元素的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我一直没能找到一个干净的解决以下问题，即使有几个相关的问题已经在左右。

I have not been able to find a clean solution to the following problem even though there are a few related questions already on SO.

如果我有一个数据模板正在使用多次，例如TreeViewItem.HeaderTemplate，我怎么能换东西的模板，只有一些TreeViewItems的。

If I have a data template that is being used multiple times, for example, a TreeViewItem.HeaderTemplate, how can I change something the template for only some of the TreeViewItems.

例如，假设我。TVI HeaderTemplate中有一个文本块，并根据不同的字符串，我想使粗细粗体

For example, let's say my TVI HeaderTemplate has a textblock and depending on the string, I want to make the fontweight bold.

我想要做这样的事情：

((TextBlock)myTreeView.Items.ElementAt(0).FindName("myTextBlock")).FontWeight = FontWeights.Bold;

有没有人有一个解决方案？ - >感谢埃文

Does anyone have a solution for this? --> Thanks Evan

编辑：有没有写一个通用功能的基础上，即使它在它的名字得到控制的一种方式数据模板

Is there a way to write a generic function to get a control based on it's name even if it's in a data template?

LayoutRoot.FindName（myTextBlock）; 如果myTextBlock在一个DataTemplate是不是会工作。我怎么能写一个 findElementInDataTemplate（字符串的ElementName，串parentName）功能？

LayoutRoot.FindName("myTextBlock"); would work if myTextBlock was not in a datatemplate. How can I write a findElementInDataTemplate(string elementName, string parentName) function?

原因埃文的回答是不是我要找的是因为我开发的控件。我想谁使用我的控制，能够改变任何元素控制应用程序开发人员。如果我使用埃文的解决方案，这需要应用程序开发人员能够访问控件中的所有模板。有可能，但不理想。谢谢！

The reason Evan's answer is not what I'm looking for is because I am developing a control. I want the application developer who uses my control to be able to change any element in the control. If I use Evan's solution, that would require the application developer to have access to all the templates in the control. Possible, but not ideal. Thanks!

推荐答案

什么版本的Silverlight是这样吗？ 和在18:55 08月10日哪一年是来自哪里？

what version of silverlight is this? And what year of " Aug 10 at 18:55" is this post from?

在SL4的当前版本中它似乎并不在那里这个职位。

in the current version of SL4 it does not seem to be there..