asp.net-mvc – RouteCollection.Ignore和RouteCollection.Ignor

RouteCollection.IgnoreRoute(via CodePlex source)

public static void IgnoreRoute(this RouteCollection routes,string url,object constraints) {
    if (routes == null) {
        throw new ArgumentNullException("routes");
    }
    if (url == null) {
        throw new ArgumentNullException("url");
    }

    IgnoreRouteInternal route = new IgnoreRouteInternal(url) {
        Constraints = new RouteValueDictionary(constraints)
    };

    routes.Add(route);
}

RouteCollection.Ignore(通过ILSpy反编译)

public void Ignore(string url,object constraints) {
    if (url == null) {
        throw new ArgumentNullException("url");
    }
    RouteCollection.IgnoreRouteInternal item = new RouteCollection.IgnoreRouteInternal(url) {
        Constraints = new RouteValueDictionary(constraints)
    };
    base.Add(item);
}

差异

唯一真正的区别是位置明显的区别,一个是RouteCollection类本身的一个实例方法,一个是该类的一个扩展方法.考虑到实例与扩展执行之间的代码差异(例如扩展实例中的重要的空值检查),它们看起来是相同的.

在他们的核心,他们都使用完全相同的StopRoutingHandler类.两者都有自己的版本的密码IgnoreRouteInternal类,但这些版本在代码中是相同的.

private sealed class IgnoreRouteInternal : Route {
    public IgnoreRouteInternal(string url)
        : base(url,new StopRoutingHandler()) {
    }
    public override VirtualPathData GetVirtualPath(RequestContext requestContext,RouteValueDictionary routeValues) {
        return null;
    }
}