ResourceDictionary共享变量

Question

在我的Resource_Color ResourceDictionary中，我定义了这一行：

    <Color x:Key="MainColor">Black</Color>

现在，我想在另一个资源文件(例如Resource_DataGrid. )中使用这个MainColor

        <Style.Triggers>
        <Trigger Property="IsSelected" Value="True">
            <Setter Property="Foreground" Value="{StaticResource MainColor}" />

。。。在这种模式下不起作用。我怎么写这份声明？

Answer 1

使用ResourceDictionary.MergedDictionaries

Window1.xaml 1.

<Window x:Class="Window1"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="Window1" Height="Auto" Width="Auto">
  <Window.Resources>
    <ResourceDictionary Source="Dictionary2.xaml" />
  </Window.Resources>
  <Grid>
    <TextBox Text="TESTING" FontWeight="Bold" Margin="30" />
  </Grid>
</Window>

Dictionary1.xaml

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
  <Color x:Key="MainColor">Blue</Color>
  <SolidColorBrush x:Key="MainBrush" Color="{StaticResource MainColor}" />
</ResourceDictionary>

Dictionary2.xaml

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
  <ResourceDictionary.MergedDictionaries>
    <ResourceDictionary Source="Dictionary1.xaml" />
  </ResourceDictionary.MergedDictionaries>

  <Style TargetType="TextBox">
    <Setter Property="Foreground" Value="{StaticResource MainBrush}" />
  </Style>
</ResourceDictionary>

另外，前台属性通常是笔刷，而不是颜色。我的例子说明了这一点。