public static ILayer GetLayerFromTOCControl(AxTOCControl _axTOCControl)
        {
            IBasicMap map = new MapClass();
            ILayer layer = new FeatureLayerClass();
            object legendGroup = new object();
            object index = new object();
            esriTOCControlItem item = new esriTOCControlItem();

            _axTOCControl.GetSelectedItem(ref item, ref map, ref layer, ref legendGroup, ref index);
            return layer;
        }