public void UncheckOthers()
{
IsChecked = true;
List <IBaseItem> list = GetParent().GetParent().GetItems();
foreach (var item in list)
{
SelectionItem tmp = item as SelectionItem;
if (item.Equals(GetParent()) || tmp == null)
{
continue;
}
VisualContact _current = (tmp.GetContent() as VisualContact);
_current.IsChecked = false;
_current.Update();
}
Update();
}
