Default Public Shadows Property Item( _
ByVal index As Integer) As UrlConfigElement
    Get
        Return CType(BaseGet(index), UrlConfigElement)
    End Get

    Set(ByVal value As UrlConfigElement)
        If Not (BaseGet(index) Is Nothing) Then
            BaseRemoveAt(index)
        End If
        BaseAdd(index, value)
    End Set
End Property

public UrlConfigElement this[int index]
{
    get
    {
        return (UrlConfigElement)BaseGet(index);
    }
    set
    {
        if (BaseGet(index) != null)
        {
            BaseRemoveAt(index);
        }
        BaseAdd(index, value);
    }
}