public override void OnClick()
{
ILayer pLayer = (ILayer)_mapControl.CustomProperty;
if (pLayer is IGroupLayer)
{
//获取GroupLayer中的图层
var subLayers = LayerUtil.GetFeatureLayersFromGroupLayer(pLayer as IGroupLayer);
foreach (var subLayer in subLayers)
{
_mapControl.Map.DeleteLayer(subLayer);
AOUtil.ReleaseComObjectAllRefs(subLayer);
}
}
_mapControl.Map.DeleteLayer(pLayer);
_mapControl.ActiveView.Refresh();
AOUtil.ReleaseComObjectAllRefs(pLayer);
}