private void BeginLoginingAni()
{
DoubleAnimation logining_da = new DoubleAnimation();
logining_da.From = 0;
logining_da.To = 1;
logining_da.Duration = new Duration(new TimeSpan(0, 0, 1));
logining_da.AutoReverse = true;
logining_da.RepeatBehavior = RepeatBehavior.Forever;
img_loginani.BeginAnimation(System.Windows.Controls.Image.OpacityProperty, logining_da);
}
private void EndLoginingAni()
{
img_loginani.BeginAnimation(System.Windows.Controls.Image.OpacityProperty, null);
}
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