This is a note for me to remember how to validate drop down list in Javascript. Although i have done this sooo many times but i still forget how to validate drop down list in javascript :p So hopefully with the help of this post, i’ll be able to refer if i forget again.
To validate drop down list in Javascript, follow the steps below:-
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- First your drop down list must have a unique id. so give a id to your select tag like below:-
<select id="country" name="country">
- Once you have select tag with an ID, you can write a function using the code below to validate the drop down list:-
if ( document.getElementById('country').selectedIndex == 0 ) { alert ( "Please select your country" ); return false; }
Hope i wont forget this piece of code again :p
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Thank you so much. Your validation drop down list in Javascript is perfect! Just what i was looking for. 🙂
Simple easy instructions and fits right in with the rest of the validation scripts i have on my form…
er…the method you write different with me..
so far i am using this method to validate
var listBoxSelection=document.getElementById(“country”).value;
if(listBoxSelection==0){
alert(“empty”);
}
another story…
How to validate checkbox with javascript i also always forgot :p