具有可选 URL 段的 ASP.NET 路由

发布于 2024-08-08 14:25:08 字数 690 浏览 7 评论 0原文

我正在处理 ASP.NET MVC 任务列表，我想在过滤列表时了解 URL 路由。我有一个如下定义的操作方法：

public ActionResult List(int categoryID, bool showCompleted, TaskFilter filter);

enum TaskFilter { MyTasks, MyDepartmentTasks, AllTasks }

我希望我的 URL 看起来像这样：

/Tasks/Category4/MyTasks/ShowCompleted/
/Tasks/Category4/MyDepartment
/Tasks/Category4/

Category# 段将始终存在。我希望 MyTasks|MyDepartment|AllTasks 段是可选的，如果不存在则默认为 AllTasks 。我还希望 ShowCompleted 是可选的，默认为 false。

这种路由是否可行，或者我是否必须回退并仅使用查询字符串参数？

后续/额外学分问题：如果我还想要操作方法上的第四个参数来按任务截止日期进行过滤，看起来像 Today|Day2Through10 （如果不存在，则默认为 Today）？

原文

I'm working on an ASP.NET MVC task list and I'd like to get fancy with the URL routing when filtering the list. I have an action method defined like this:

public ActionResult List(int categoryID, bool showCompleted, TaskFilter filter);

enum TaskFilter { MyTasks, MyDepartmentTasks, AllTasks }

I want my URLs to look like this:

/Tasks/Category4/MyTasks/ShowCompleted/
/Tasks/Category4/MyDepartment
/Tasks/Category4/

The Category# segment will always be present. I'd like the MyTasks|MyDepartment|AllTasks segment to be optional, defaulting to AllTasks if absent. I'd also like ShowCompleted to be optional, defaulting to false.

Is this sort of routing possible, or am I going to have to fall back and just use querystring parameters?

Followup/extra credit question: What if I also wanted a fourth parameter on the action method to filter by task due date that looked like Today|Day2Through10 (default Today if absent)?

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蓝海似她心 2024-08-15 14:25:08

以下内容涵盖了您的第一个问题，但略有更改：

routes.MapRoute(
    "t1",
    "Tasks/Category{categoryID}",
    new
    {
        controller = "Task",
        action = "List",
        showCompleted = false,
        strFilter = TaskFilter.AllTasks.ToString()
    }
    );

routes.MapRoute(
    "t2",
    "Tasks/Category{categoryID}/{strFilter}/",
    new
    {
        controller = "Task",
        action = "List",
        showCompleted = false
    }
);

routes.MapRoute(
    "t3",
    "Tasks/Category{categoryID}/{strFilter}/ShowCompleted",
    new { controller = "Task", action = "List", showCompleted = true }
    );

您需要将 List 方法更改为如下所示：

public ActionResult List(int categoryID, bool showCompleted, string strFilter)
{
    TaskFilter filter = (TaskFilter)Enum.Parse(typeof(TaskFilter), strFilter);

对于第二个查询，您只需使用 {Day2} 等即可传递给 ActionResult。从我给你的内容中你应该能够弄清楚。

The following covers your first question with a slight change:

routes.MapRoute(
    "t1",
    "Tasks/Category{categoryID}",
    new
    {
        controller = "Task",
        action = "List",
        showCompleted = false,
        strFilter = TaskFilter.AllTasks.ToString()
    }
    );

routes.MapRoute(
    "t2",
    "Tasks/Category{categoryID}/{strFilter}/",
    new
    {
        controller = "Task",
        action = "List",
        showCompleted = false
    }
);

routes.MapRoute(
    "t3",
    "Tasks/Category{categoryID}/{strFilter}/ShowCompleted",
    new { controller = "Task", action = "List", showCompleted = true }
    );

You will need to change the List method to start like the following:

public ActionResult List(int categoryID, bool showCompleted, string strFilter)
{
    TaskFilter filter = (TaskFilter)Enum.Parse(typeof(TaskFilter), strFilter);

For your second query, you just need to use {Day2} and such to be passed to the ActionResult. You should be able to figure it out from what I've given you.

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