public static void AnimatePropertyFromTo(DependencyObject target, DependencyProperty property, double? fromValue, double? targetValue, int duration, DoubleAnimation animation, EventHandler animationDone, int startTime)
{
if (property.PropertyType != typeof(double))
{
throw new ArgumentException(SR.Animator_PropertyMustBeDouble, "property");
}
if (!(target is IAnimatable))
{
throw new ArgumentException(SR.Animator_TargetMustBeIAnimatable, "target");
}
animation.From = fromValue;
animation.To = targetValue;
animation.BeginTime = TimeSpan.FromMilliseconds(startTime);
animation.Duration = TimeSpan.FromMilliseconds(duration);
if (animationDone != null)
{
animation.AttachCompletedEventHandler(animationDone);
}
AnimateProperty(target, property, animation, animationDone);
}