C# 从服务器端的路由值解析URL

我正在尝试为远程验证创建一个ValidationAttribute，它只在服务器端和IsValid方法内部工作，我需要从url路由值解析url。以下是我的初始设置：

public class ServerSideRemoteAttribute : ValidationAttribute {

    public string Controller { get; set; }
    public string Action { get; set; }
    public object RouteValues { get; set; }

    public ServerSideRemoteAttribute(string controller, string action) {

        this.Controller = controller;
        this.Action = action;
    }

    public ServerSideRemoteAttribute(string controller, string action, object routeValues) {

        this.Controller = controller;
        this.Action = action;
        this.RouteValues = routeValues;
    }

    protected override ValidationResult IsValid(object value, ValidationContext validationContext) {

        //Here I need to resolve the url in order to make a call to that controller action and get the JSON result back

        return base.IsValid(value, validationContext);
    }
}

---

有什么想法吗？

非常感谢！这很有帮助。这会解析完整的URL吗？比如：localhost:6738/Home/Index/100？@tugberk，不会解析为完整的URL。如果需要绝对url，则必须使用适当的重载：var url=urlHelper.ActionAction、Controller、routeValue、urlHelper.RequestContext.HttpContext.Request.url.Scheme；再次感谢。我应该看看MSDN，而不是懒惰：s

var httpContext = new HttpContextWrapper(HttpContext.Current);
var urlHelper = new UrlHelper(new RequestContext(httpContext, new RouteData()));
var url = urlHelper.Action(Action, Controller, RouteValues);