tags:

views:

43

answers:

2
Q: 

asp.net mvc what is the life of a controller?

hi,

what is the life of a controller? if i create a controller, store some data in private fields, then the user goes to other pages using different controllers, then clicks a link to come back to the original controller, under which circumstances will that data still be there?

thanks!

+2  A: 

The controller is instantiated and destroyed by the MVC framework for each HTTP request.

If you need to persist data between page requests, use Session, or store it in a database.

womp  2010-03-03 17:09:34
Or Cookies Or TempData :-)
Charlino  2010-03-03 20:52:51
Nooooo!!!! a Gipsy's dies every time you use TempData!!! avoid it...If you are storing data between requests using it, you are breaking the stateless nature of ASP MVC : )
SDReyes  2010-03-03 21:23:17
I prefer TempData for simple scenarios like a success message after directing to another page. It keeps the url clean, they can't refresh and get the message again like you would get if you put it in the querystring. I think it's ok in light moderation. It wraps the code I would have written against Session myself to do the same thing.
Jab  2010-03-04 01:11:52
@Jab - Agreed. I use it for that exact purpose - flash messages.
Charlino  2010-03-09 00:22:09
+3  A: 

This is a great cheat sheet for the asp.net mvc lifecycle. Click the image for the original PDF.

alt text

Martijn Laarman  2010-03-03 17:14:39

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