按钮背景颜色动画

Question

I have around 30 buttons in my window and i want to change the background color of one of them after some processes.

Here's my code :

private void Button_Click(object sender, RoutedEventArgs e){
.
. //A Dialog Shows Up And Do Some Processes
.
Button b = (Button)sender;
ColorAnimation ca = new ColorAnimation();
ca.From = ((SolidColorBrush)b.Background).Color;
ca.To = Color.FromArgb(255, 132, 27, 13);
ca.Duration = new Duration(TimeSpan.FromMilliseconds(2000));
ca.EasingFunction = new QuadraticEase();
b.Background.BeginAnimation(SolidColorBrush.ColorProperty, ca);
}

Some of my buttons are attached to this event. When this method runs and do it things, all the buttons with the same color as sender , begin the animation but i only want to sender runs the animation, not all of them. any solution to this ? maybe i'm using a wrong property to begin the animation with.

Answer 1

Creating a new brush per button will solve your problem. The reason your buttons are sharing the animation is because class es are Reference Types in C#. When it is time to draw the buttons all buttons will notice the change the animation has made to the Color inside the brush they share. When you give each their own brush their brush will have their own color that can be animated independantly.