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带有可选参数的ASP.NET MVC自定义路由

asp.net-mvc-routing asp.net-mvc

giorgian · 技术社区 · 15 年前

我想要一个包含两个可选参数的路由;我认为以下内容可以工作:

routes.MapRoute(
    "ProductForm",
    "products/{action}/{vendor_id}_{category_id}",
    new { controller = "Products", action = "Index", vendor_id = "", category_id = "" },
    new { action = @"Create|Edit" }
);

但这两种情况下都有效 vendor_id 和 category_id 提供;使用 RouteDebug 我明白了 /products/create/_3 不会触发我的路线,因此我添加了其他两条路线:

routes.MapRoute(
    "ProductForm1",
    "{controller}/{action}/_{category_id}",
    new { controller = "Home", action = "Index", category_id = "" },
    new { controller = "Products", action = @"Create|Edit" }
);

routes.MapRoute(
    "ProductForm2",
    "{controller}/{action}/{vendor_id}_",
    new { controller = "Home", action = "Index", vendor_id = "" },
    new { controller = "Products", action = @"Create|Edit" }
);

所以,问题是:

使用三个路由是生成带有可选参数的路由的唯一方法吗?
这些URL是否正常,也就是说,您是否会建议一种更好的方法来执行此操作?

3 回复 | 直到 15 年前

Hannoun Yassir 15 年前

为什么不给供应商ID一个默认值(如果没有指定值,即0),可以帮助您避开一条路线?

routes.MapRoute("ProductForm","products/{action}/{vendor_id}_{category_id}",
new { controller = "Products", action = "Index", vendor_id = "0", category_id = "" },   
new { action = @"Create|Edit" });

davethecoder 15 年前

我觉得不错,但我会做一些不同的事情:

routes.MapRoute(
"ProductForm1",
"product/category/{category_id}",
new { controller = "Home", action = "Index", category_id = "" },
new { controller = "Products", action = @"Create|Edit" }

;

然后

 routes.MapRoute(
"ProductForm1",
"product/details/{product_id}",
new { controller = "Home", action = "Index", product_id = "" },
new { controller = "Products", action = @"Create|Edit" }

;

那么你的课程可以是:

ActionResults Index(){}
ActionResults Index(int category_id){// get categories}
ActionResults Index(int product_id){ // get products}

但那只是我

Mark 15 年前

你可以这样试试:

routes.MapRoute(    
"ProductForm",
"products/{action}/{arg1}/{arg1_id}/{arg2}/{arg2_id}",    
new { controller = "Products", action = "Index", arg1 = "", arg2 = "", arg1_id = "", arg2_id = "" },
new { action = @"Create|Edit" });

然后您将在actionResult方法中创建一些逻辑来检查arg1和arg2,并标识传入的wich参数。

您的actionLink URL如下所示:

/products/create/vendor/10
/products/create/category/20
/products/create/vendor/10/category/20
/products/create/category/20/vendor/10

就我个人而言,我不喜欢这样,因为路线看起来不太干净,但应该给你我认为你希望达到的目标吗?