Why doesn't the Margin of the button change?

Question

WPF

There is a code:

Button btn = (Button)sender;
btn.Margin = new Thickness();
Thickness margin = btn.Margin;
ThicknessAnimation anim = new ThicknessAnimation();  
...

It is logical that the margin variable should be equal to {0,0,0,0}, but it is not! The Margin value of the btn button does not change, it remains equal to the previous value. Why is that?

Answer 1

Probably something like ThicknessAnimation is changing the Margin of the button.
You need to remove the animation before making changes:

Button btn = (Button)sender;

button.BeginAnimation(MarginProperty, null);

btn.Margin = new Thickness();
Thickness margin = btn.Margin;
// ...