How to Prevent Users from Submitting a Form Twice

Issue

<input type="submit" name="btnADD" id="btnADD" value="ADD"/>

when user click add button twice, from get submitted twice with same data into table. So Please help me to restrict user to submit from twice.

Solution

try out this code..

<input type="submit" name="btnADD" id="btnADD" value="ADD" onclick="this.disabled=true;this.value='Sending, please wait...';this.form.submit();" />

Answered By - Vijay