WPF 按键图标转动效果示例

        <Storyboard x:Key="IconStoryboard">
            <DoubleAnimation
                                Storyboard.TargetName="PackIconFileIcon"
                                Storyboard.TargetProperty="(iconPacks:PackIconFileIcons.RotationAngle)"
                                From="0"
                                To="360"
                                Duration="0:0:0.3"
                               />
        Storyboard>

        <ToggleButton x:Name="toggleBtn" VerticalAlignment="Top" Width="30" Height="30" Margin="0,0,0,0">
            <iconPacks:PackIconFileIcons x:Name="PackIconFileIcon" Kind="Actionscript"  />
        ToggleButton>

		private void toggleBtn_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
		{
			_pressedPosition2 = e.GetPosition(this);
		}

		private void toggleBtn_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
		{
			if (Mouse.LeftButton == MouseButtonState.Released && _pressedPosition2 == e.GetPosition(this))
			{
				if (toggleBtn.IsChecked == true)
				{
					//ItemsCtrl.Visibility = Visibility.Visible;
					var expandStoryboard = (Storyboard)FindResource("ExpandStoryboard");
					expandStoryboard.Begin();

					var IconStoryboard = (Storyboard)FindResource("IconStoryboard");
					IconStoryboard.Begin();
				}
				else
				{
					var collapseStoryboard = (Storyboard)FindResource("CollapseStoryboard");
					collapseStoryboard.Begin();

					var IconStoryboard = (Storyboard)FindResource("IconStoryboard");
					IconStoryboard.Begin();
					//ItemsCtrl.Visibility = Visibility.Hidden;
				}
			}
		}