Map url text to boolean parameter with MVC attribute routing

问题

Given the following two urls:

• /employee/list/active
• /employee/list/inactive

How do I map the active/inactive part of the url to a boolean action method parameter, active being true, inactive being false?

[Route("employee/list")]    
public ActionResult List(bool? active = null)

回答1:

The enum is a correct approach as it allows you to easily add new statuses in the future :

[Route("employee/list/{status}")]
public ActionResult List(status status)
{
    ...
}

public enum status { active, inactive }

---

Even though, based on the single responsibility principle, I would prefer a simpler solution like this:

[Route("employee/list/active")]
public ActionResult ListActive()
{
    return List(true);
}

[Route("employee/list/inactive")]
public ActionResult ListInactive()
{
    return List(false);
}

public ActionResult List(status status)
{
    ...
}

回答2:

I reworked it to use a string so it worked like this:

[Route("employee/list")]
[Route("employee/list/{active}")]
public ActionResult List(string active ="both")
{
   ///Stuff happens here
}

It's important to add the first, parameterless route if you need the parameter to be optional.

Update: This route works too

[Route("employee/list/{active='both'}")]

来源：https://stackoverflow.com/questions/33412425/map-url-text-to-boolean-parameter-with-mvc-attribute-routing