public void RemovePortGroup(VMware.Vim.HostConfigManager configMgr, string portGroupName) { VMware.Vim.ManagedObjectReference nMob = configMgr.NetworkSystem; //HostNetworkInfo nwSystem = (HostNetworkInfo)this.GetDynamicProperty(nMob, "networkInfo"); vimService.RemovePortGroup(nMob != null ? new VimApi_55.ManagedObjectReference() { type = nMob.Type, Value = nMob.Value } : null, portGroupName); }