9 
<ResourceDictionary
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:Microsoft_Windows_Themes="clr-namespace:Microsoft.Windows.Themes;assembly=PresentationFramework.Aero">

    <LinearGradientBrush x:Key="ButtonNormalBackgroundBrush"
        StartPoint = "0.5,0"
        EndPoint   = "0.5,1">

        <GradientStop Color="#C10099FF" Offset="0"/>
        <GradientStop Color="#C16699CC" Offset="1"/>
        <GradientStop Color="#C1006699" Offset="0.49"/>

    </LinearGradientBrush>

<ResourceDictionary/>

现在我想从 ResourceDictonary 获取 LinearGradientBrush 并将其动态应用于按钮作为 wpf 中的背景颜色。

 BtnGetBrushes.Background = Brushes.Green;

我想应用上面的颜色而不是这个（Brushes.Green）。我该怎么办？

4

2 回答 2

18

假设您的 ResourceDictionary 在上下文中可用：

<Button Background="{DynamicResource ResourceKey=ButtonNormalBackgroundBrush}" />

或在代码中

button.Background = (Brush)FindResource("ButtonNormalBackgroundBrush");
于 2012-08-28T04:45:29.683 回答
4 
BtnGetBrushes.Background = this.Resources["ButtonNormalBackgroundBrush"] as LinearGradientBrush;
于 2012-08-28T04:47:54.280 回答