从WPF用户控件访问的ResourceDictionary [英] Accessing ResourceDictionary from WPF UserControl

问题描述

我试图访​​问一个资源字典在用户控件代码隐藏通过C＃和我有一点成功

I'm trying to access a resource dictionary in a UserControl code-behind via C# and I'm having little success.

合并解释：

<UserControl.Resources>
    <ResourceDictionary>
        <ResourceDictionary.MergedDictionaries>
            <ResourceDictionary Source="/Resources/BiometricDictionary.xaml" />                
        </ResourceDictionary.MergedDictionaries>
    </ResourceDictionary>
</UserControl.Resources>

嵌入式词典：

Embedded Dictionary:

<UserControl.Resources>
    <BitmapImage x:Key="imageDefault">/Resources/Images/default_thumb.png</BitmapImage>
    <BitmapImage x:Key="imageDisconnected">/Resources/Images/disconnect_thumb.png</BitmapImage>
    <BitmapImage x:Key="imageFailed">/Resources/Images/failed_thumb.png</BitmapImage>
    <BitmapImage x:Key="imageSuccess">/Resources/Images/success_thumb.png</BitmapImage>
</UserControl.Resources>

后面的代码：

Code behind:

        var resourceDictionary = new ResourceDictionary();
        resourceDictionary.Source = new Uri("/Resources/BiometricDictionary.xaml", UriKind.Relative);

我已经尝试了所有的例子和有用的提示，但来了短。眼下，成功将载入字典的能力。有什么建议么？

I've tried all of the examples and helpful tips but coming up short. Right now, success would be the ability to load the dictionary. Any suggestions?

推荐答案

要访问您的UserControl的XAML的资源之一，你的代码隐藏，所有你需要做的是访问用户控件的资源属性。事情是这样的：

To access one of your UserControl's XAML resources in your codebehind, all you need to do is access the Resources property of the UserControl. Something like this:

BitmapImage myImage = (BitmapImage)this.Resources["imageDefault"];

虽然，优选的方法是使用FindResource（），这将搜索整个逻辑树为一比赛的关键，而不仅仅是它的对象上调用。

Though, the preferred method is to use FindResource(), which will search the entire logical tree for a match to the key, rather than just the object it is called on.

BitmapImage myImage = (BitmapImage)this.FindResource("imageDefault");

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