05-controllers-routing.md

phase 05 — controllers and routing

prerequisite

phase 02.

goal

you understand route → action and return View() vs RedirectToAction().

steps you do

1. add OrderController (name example) with Details(int id).
2. add route attribute or rely on convention /Order/Details/5.
3. return View(model) with a viewmodel or entity (course may prefer viewmodels).

sanity check

typing url manually loads details page (even placeholder).

common mistakes

• action name typo vs view file name
• forgot [HttpPost] on forms

reflection

what is the difference between return View() and return RedirectToAction() for the user’s browser?