public override void DidReceiveMemoryWarning()
{
foreach (var item in ComboBoxEdit.ItemsSource)
{
((NSObject)item).Dispose();
}
foreach (var item in ComboBoxNonEdit.ItemsSource)
{
((NSObject)item).Dispose();
}
ComboBoxEdit.RemoveFromSuperview();
ComboBoxNonEdit.RemoveFromSuperview();
ReleaseDesignerOutlets();
base.DidReceiveMemoryWarning();
}