如何在ResourceDictionary中设置可用于背景属性的主要颜色

Question

So I created a ResourceDictionary that looks like this

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <SolidColorBrush x:Key="PrimaryColor" Color="#252525"/>
</ResourceDictionary>

Now my question is how do I get a hold of that key so I can use it for my background property on my MainWindow?

<Window ...
        Background="{DynamicResource PrimaryColor}">

Answer 1

You need to merge the ResourceDictionary into your App.xaml :

<Application ...>
    <Application.Resources>
        <ResourceDictionary>
            <ResourceDictionary.MergedDictionaries>
                <ResourceDictionary Source="YourResourceDict.xaml"/>
            </ResourceDictionary.MergedDictionaries>
        </ResourceDictionary>
    </Application.Resources>
</Application>

Once it's in scope, you could reference any resource using either {DynamicResource key} or {StaticResource key}

What's the difference between StaticResource and DynamicResource in WPF?