public void MoveUp()
{
if (SelectedStatistic != null && PlayerStatistics.First() != SelectedStatistic)
{
int index = PlayerStatistics.IndexOf(SelectedStatistic);
var stat = SelectedStatistic;
PlayerStatistics.Remove(SelectedStatistic);
PlayerStatistics.Insert(index - 1, stat);
SelectedStatistic = null;
SelectedStatistic = stat;
}
}