ASP.NET MVC如何将页面名称与类名称相关联？

Question

I'm new to ASP.NET MVC and I'm confused about how in a compiled language like C#, class names can have any meaning after the project has been built. Can someone explain to me how the building process takes

public class SomePageController : Controller {
     public ActionResult Index() { return View(); }
}

and grabs the names SomePage and Index to create a URL map SomePage/Index that calls the function Index() ? I only understand how this works if there is some other C# file that somehow able to look at all classes derived from the Controller class and get a string that is their name without the suffix "Controller" . But that seems weird to me coming from a C++ background because I've never seen a way that a language can have of variables referencing their own name, nor have I ever seen a way to iterate through all classes derived from a certain class.

Maybe someone can show me how to write a C# procedure like

public class SomePageController : Controller {
     public ActionResult Index() { return View(); }
}

public class SomeOtherPageController : Controller {
     public ActionResult Index() { return View(); }
}

public void printPageNames ( void )
{
    // ... Will print "SomePage, SomeOtherPage" to the console
}

Answer 1

What you need to read into is Reflection . It allows you to look at all of the classes, properties, etc within an assembly.

To directly answer your question, Jon Skeet has the starting point of how to accomplish this.

Your code would look something like this:

var assembly = Assembly.GetExecutingAssembly();

foreach (var controller in assembly.GetTypes().Where(a => a.Name.EndsWith("Controller"))
{
    Console.WriteLine(controller.Name.TrimEnd("Controller"));
}