Validation to check if a radio button is checked or not through javascript [duplicate]

Question

I want to just check whether a radio button is selected or not through javascript. I am getting an object is undefined error with the below code.

function ValidateRadioButton() { if (document.form1.optfirst.checked == true) { alert("Option1 is checked"); } else if (document.form1.optsecond.checked == true) { alert("Option2 is checked"); } return false; }

Its under <asp:Content ID="Content1" ContentPlaceHolderID="head" Runat="Server"> <title>Test Page/title> — user3074125
– user3074125, Commented Dec 19, 2014 at 13:19
And on button click OnClientClick="return ValidateRadioButton();" — user3074125
– user3074125, Commented Dec 19, 2014 at 13:20

Kaushal Khamar · Accepted Answer · 2014-12-19 13:22:24Z

0

You should get your Radio button through ID

IF(document.getElementById("optfirst").checked) { //Code To Execute }

answered Dec 19, 2014 at 13:22

Kaushal Khamar

2,1231 gold badge18 silver badges23 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

James Hibbard Over a year ago

If the radio and the form have name attributes, how he is doing it is fine.

Collectives™ on Stack Overflow

Validation to check if a radio button is checked or not through javascript [duplicate]

1 Answer 1

1 Comment

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Linked

Related