public void RemoveRange(ImpObservableCollection <T> range)
{
foreach (T item in range)
{
Remove(item);
}
}
public object Clone()
{
ImpObservableCollection <T> clone = new ImpObservableCollection <T>();
foreach (ICloneable obj in this)
{
clone.Add((T)obj.Clone());
}
return(clone);
}