void ShowSearch_OnClick(object sender, RoutedEventArgs e)
{
DoubleAnimation animation;
if (_searchIsOpen)
{
animation = new DoubleAnimation(SearchClosedLeft, _searchDuration);
}
else
{
animation = new DoubleAnimation(SearchOpenLeft, _searchDuration);
}
_searchIsOpen = !_searchIsOpen;
SearchGrid.BeginAnimation(Canvas.LeftProperty, animation);
}