void updateContent()
{
if (IsChecked == null)
{
if (ContentMiddle != null)
{
base.Content = ContentMiddle;
}
base.IsEnabled = false;
return;
}
base.IsEnabled = true;
if (IsChecked.Equals(true))
{
base.Content = ContentDown;
}
else
{
base.Content = ContentUp;
}
}