如何在 XAML 中定义和使用变量来定义颜色? [英] How can I define and use a variable in XAML to define a color?

问题描述

我的 XAML 中有许多元素将 Foreground="#555" 定义为只读文本框中褪色文本的颜色.

I have a number of elements in my XAML which define Foreground="#555" to be the color of faded text in a readonly textbox.

<TextBlock Text="{Binding SingularModelClassFileTitle}" Margin="0 10 0 0"/>
<TextBox Text="{Binding SingularModelClassFileName}"
         HorizontalAlignment="Left"
         IsReadOnly="True"
         Foreground="#555"
         Width="500"/>
<TextBox 
 VerticalScrollBarVisibility="Visible"
 AcceptsReturn="True"                  
 Width="500" 
 Height="100" 
 IsReadOnly="True" 
 Foreground="#555"
 Text="{Binding SingularModelClassContent}"
 HorizontalAlignment="Left"
 Margin="0 0 0 20"/>

如何将此值放入 XAML 变量并在每个属性中引用它，以便我只需在一个地方更改它?

How can I put this value in a XAML variable and reference in each attribute it so that I only have to change it in one place?

我认为你可以做这样的事情:

<sys:String x:Key="ReadOnlyTextColor">#555</sys:String>

...

    <TextBox Foreground="{StaticResource ReadOnlyTextColor}"/>

对此的属性 xmlns:sys=... 引用是什么?

And what would be the property xmlns:sys=... reference for this?

推荐答案

尝试将您的颜色定义为 SolidColorBrush:

Try defining your color as a SolidColorBrush:

<SolidColorBrush x:Key="ReadOnlyTextBrush" Color="#555555" />

...

<TextBox Foreground="{StaticResource ReadOnlyTextColor}" />

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