Run a method just once in controller

Question

User-403790330 posted

I have method in a controller to run but every time the view reload the method run again. I tired running it from the application_start I got the same result every time the view reload, it the method runs again. How can I do it to just run once?.

Answer 1

User-707554951 posted

Hi omoOba14,

From your description, I suggest you could do as the code below:

public static bool flag = true;
        public ActionResult Index3()
        {
            if (flag)
            {
                //call the method
                ViewBag.Message = "Fist time load";
            }
            else
            {
                ViewBag.Message = "Second time load";

            }
            flag = false;
            return View();
        } 

Best regards

Cathy

Answer 2

User-403790330 posted

Thank you very much, I want to ask does it state persist even when the view associate with ActionResult reload.

Answer 3

User303363814 posted

Do you mean to run the code once in the lifetime of the universe?

Or once everytime the web server starts?

Or once everytime the web site starts?

Or once everytime a new user comes to the site?

Or something else?

Answer 4

User753101303 posted

Hi,

No the web is stateless and won't persist anything unless asking for this explicitely (if coming from Web Forms, it uses an hidden field to automatically persist few things for you).

Also doing that from Application_Start doesn't seems to make sense. I'm really not sure what you are trying to do. A possible option might be to "cache" this page but for now I would suggest to explain what is your final goal.