Angular 2 Fullversion，RouteSegment和RouteTree替代方案？

Question

我尝试将this Angular App切换到ASP.NET Core Angular 2 App，但我遇到RouteSegment和RouteTree的问题。

关注导入：

Import { RouteConfig, ROUTER_DIRECTIVES, RouterSegment, OnActivate, RouteTree } from 'angluar2/router';

跟随路由器：

routerOnActivate(current: RouteSegment, prev?: RouteSegment,
    currTree?: RouteTree, prevTree?: RouteTree) {
    var path = currTree.children(current)[0].stringifiedUrlSegments;
    switch (path) {
      case 'details':
        this.displayMode = CustomerDisplayModeEnum.Details;
        break;
      case 'orders':
        this.displayMode = CustomerDisplayModeEnum.Orders;
        break;
      case 'edit':
        this.displayMode = CustomerDisplayModeEnum.Edit;
        break;
    }
  }

RouteSegment和RouteTree的替代方法是什么？