Single form multiple submit I have one simple quick contact form (webform), it's working fine but sometimes when user fill form n submit it get submitted 2 times or 3 times.

I have checked the submission table that same data is submitted on same time 2 or 3 times.

This happens sometime but not for all submit .

If anybody have resolved this type of issue then please let me know how you have resolved it.

Thanks in advance.
You can try out a more general solution for all the forms by using Hide Submit Module


  Some users accidentally click the submit button more than once while
  waiting for their post to be saved. In some cases this may result
  duplicate postings or duplicate e-commerce orders.
  
  There are few ideas on how to solve duplicate postings but none is
  perfect. One of the solutions is a bit of jQuery to hide or disable
  the submit button after it has been clicked and replace it with an
  informative text such as "Processing..." .
  
  This module wraps that jQuery code and provides some options. Of
  course this, too, is not a perfect solution as it requires Javascript
  to be enabled. For browsers with Javascript disabled this module will
  have no effect at all.