Preventing action in web application from being called twice (ASP.NET MVC)

What is 开发者_如何学Cthe best way to make sure an ASP.NET MVC action is not called twice (i.e. if the user clicks on a button twice in quick succession)? On most of our screens, it's not a big deal if it happens ... but on a few it causes havoc (like paying people multiple times instead of just once).

You could disable the submit button using javascript. For example with jQuery:

$(function() {
    $('form').submit(function() {
        $(':submit, :image', this).attr('disabled', 'disabled');
    });
});

There was a recent thread about this (with Darin actually).

A combination of doing as he mentioned and implementing a Post-Redirect-Get strategy covers most holes.