Stop new request on page refresh

[pawan chopra]

Hi All,

I have a page where user can create a project online. I have project name and due date in the form. Once user clicks on the create project button on the server side I am checking that projects name already exist or not. If it exist I am sending an error to the User on the same page. Suppose user refresh that page it asks him to send the request again or not if user clicks ok another request . I want to stop that can any body tel me any way.

[William Brogden]

You can't stop the user request but you can keep track of which page he is looking at and change the way the repeated request is handled.

Bill

[lokesh pattajoshi]

you can use Token to prevent double posting.

[Bear Bibeault]

Please read this article, paying particularly close attention to the PRG pattern.

[Alpesh Padra]

Use Syncronize Token Pattern for duplicate submit.

[pawan chopra]

William Brogden wrote:You can't stop the user request but you can keep track of which page he is looking at and change the way the repeated request is handled.

Bill

Thanks.

[Manan Panchal]

Hello,

I have some confusion.

Suppose, one page with "login" link on it.

We press the link and (1) GET request sent and server responded with login page.
We fill the form and press login button and (2) POST request sent, and if login will successful then server redirects a page with some user information with (3) GET request.

So, here request history like this according to number (1) GET, (2) POST, (3) GET.
Now, we press "Back" of browser, then why do browser sent (1) GET? why not (2) POST.