I have a form that takes a little while for the server to process. I need to ensure that the user waits and does not attempt to resubmit the form by clicking the button agai
I can't believe the good old fashioned css trick of pointer-events: none hasn't been mentioned yet. I had the same issue by adding a disabled attribute but this doesn't post back. Try the below and replace #SubmitButton with the ID of your submit button.
$(document).on('click', '#SubmitButton', function () {
$(this).css('pointer-events', 'none');
})