动态资源 使用 DynamicResource 关键字
静态 就是 StaticResource
原则上是 能用静态就用静态 动态会让前台界面压力很大~
动态资源引用 就是可以在后台改变资源 显示不同的样式 资源是一样的 就看关键字用什么
效果
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<Window.Resources>
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<LinearGradientBrush x:Key="RectFill" EndPoint="0.5,1" StartPoint="0.5,0">
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<GradientStop Color="BurlyWood" Offset="0"/>
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<GradientStop Color="White" Offset="1"/>
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</LinearGradientBrush>
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</Window.Resources>
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<Grid>
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<Rectangle Fill="{ DynamicResource RectFill}" HorizontalAlignment="Left" Height="76" Margin="85,70,0,0" Stroke="Black" VerticalAlignment="Top" Width="243">
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</Rectangle>
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<RadioButton x:Name="R" Content="R" HorizontalAlignment="Left" Margin="377,70,0,0" VerticalAlignment="Top" Click="R_Click"/>
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<RadioButton x:Name="G" Content="G" HorizontalAlignment="Left" Margin="377,98,0,0" VerticalAlignment="Top" Click="G_Click"/>
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<RadioButton x:Name="B" Content="B" HorizontalAlignment="Left" Margin="377,130,0,0" VerticalAlignment="Top" Click="B_Click"/>
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</Grid>
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private void R_Click(object sender, RoutedEventArgs e)
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{
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var bursh = Resources["RectFill"];
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if (bursh is LinearGradientBrush)
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{
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LinearGradientBrush Ibursh = (LinearGradientBrush)bursh;
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Ibursh = new LinearGradientBrush()
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{
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GradientStops = new GradientStopCollection()
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{
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new GradientStop(Colors.BurlyWood,0),
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new GradientStop(Colors.Red,1)
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}
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};
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Resources["RectFill"] = Ibursh;
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}
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}
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private void G_Click(object sender, RoutedEventArgs e)
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{
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var bursh = Resources["RectFill"];
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if (bursh is LinearGradientBrush)
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{
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LinearGradientBrush Ibursh = (LinearGradientBrush)bursh;
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Ibursh = new LinearGradientBrush()
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{
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GradientStops = new GradientStopCollection()
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{
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new GradientStop(Colors.BurlyWood,0),
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new GradientStop(Colors.Green,1)
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}
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};
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Resources["RectFill"] = Ibursh;
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}
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}
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private void B_Click(object sender, RoutedEventArgs e)
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{
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var bursh = Resources["RectFill"];
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if (bursh is LinearGradientBrush)
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{
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LinearGradientBrush Ibursh = (LinearGradientBrush)bursh;
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Ibursh = new LinearGradientBrush()
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{
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GradientStops = new GradientStopCollection()
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{
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new GradientStop(Colors.BurlyWood,0),
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new GradientStop(Colors.Blue,1)
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}
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};
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Resources["RectFill"] = Ibursh;
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}
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}