ListViewGroup - only one item per group

As I was working on a new GUI part of the software I'm working on, I needed to allow the user to choose only a single item in each category. I overloaded the ListView control, and override the OnItemCheck method. Here's the result:

public class SingleItemPerGroupListView : ListView
{
    public SingleItemPerGroupListView()
    { }

    protected override void OnItemCheck(ItemCheckEventArgs ice)
    {
        // Always behave regulary when user uncheck an item
        if (ice.NewValue == CheckState.Unchecked)
        {
            base.OnItemCheck(ice);
            return;
        }

        // Get the checked item
        ListViewItem lvi = this.Items[ice.Index];

        // If no item has no group, handle regulary
        if (lvi.Group == null)
        {
            base.OnItemCheck(ice);
            return;
        }

        // If another item is checked, uncheck item
        foreach (ListViewItem otherLvi in lvi.Group.Items)
        {
            if (otherLvi == lvi)
                continue;

            if (otherLvi.Checked)
            {
                otherLvi.Checked = false;
            }
        }
    }
}