SolidColorBrush Opacity property from 1 to 0

Posted on by coder
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<Window x:Class="Workspace.DockExample"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Workspace" Width="640" Height="480">

    <StackPanel>
        <Rectangle Width="100" Height="50" Stroke="Black" StrokeThickness="1" >
          <Rectangle.Fill>
            <SolidColorBrush Color="Blue" Opacity="1" />
          </Rectangle.Fill>
        </Rectangle>
        <Rectangle Width="100" Height="50" Stroke="Black" StrokeThickness="1">
          <Rectangle.Fill>
            <SolidColorBrush Color="Blue" Opacity="0.75" />
          </Rectangle.Fill>
        </Rectangle>
        <Rectangle Width="100" Height="50" Stroke="Black" StrokeThickness="1">
          <Rectangle.Fill>
            <SolidColorBrush Color="Blue" Opacity="0.5" />
          </Rectangle.Fill>
        </Rectangle>
        <Rectangle Width="100" Height="50" Stroke="Black" StrokeThickness="1">
          <Rectangle.Fill>
            <SolidColorBrush Color="Blue" Opacity="0.25" />
          </Rectangle.Fill>
        </Rectangle>
        <Rectangle Width="100" Height="50" Stroke="Black" StrokeThickness="1">
          <Rectangle.Fill>
            <SolidColorBrush Color="Blue" Opacity="0" />
          </Rectangle.Fill>
        </Rectangle>
    </StackPanel>
</Window>