How to get checkbox1.Checked property within a javascript?

Question

I have two checkboxes. When I checked both checkboxes, I want to generate an alert "Passed". I have written like this

<html xmlns="http://www.w3.org/1999/xhtml">
 <head runat="server">
<title>Untitled Page</title> 
 
  <script type="text/javascript" >
   function validate() {
    if (document.getElementById('CheckBox1').checked &&   document.getElementById('CheckBox2').checked) {

        alert("passed");

     } else {
        alert("Referred")
    }
}
</script>


   <asp:CheckBox ID="CheckBox1" runat="server"  OnCheckedChanged="javascript:validate();" />
   <asp:CheckBox ID="CheckBox2" runat="server"  OnCheckedChanged="javascript:validate();" />

but the problem is this (checkbox1).checked is not getting inbuildly within the . how can I get it? is there any need for adding extra properties to my project for getting the .checked property? it's first time I'm using javascript. and my visualstudio version is 3.5.please help

here is the answer check once the post stackoverflow.com/questions/5539139/… stackoverflow.com/questions/9887360/… — Ramakrishna.p
– Ramakrishna.p, Commented Aug 19, 2013 at 7:45

Abijeet Patro · Accepted Answer · 2013-08-19 08:38:45Z

8

OnCheckedChanged is a server side event, and you are handing it on the client side.

<asp:CheckBox ID="CheckBox1" runat="server"  onchange="validate();" />
<asp:CheckBox ID="CheckBox2" runat="server"  onchange="validate();" />

Also you might need to use .ClientID -

(document.getElementById('<%=CheckBox1.ClientID%>').checked &&   document.getElementById('<%=CheckBox2.ClientID%>').checked)

edited Aug 19, 2013 at 8:38

answered Aug 19, 2013 at 7:51

Abijeet Patro

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Comments

mj930112 · Accepted Answer · 2013-08-19 07:46:53Z

-1

try this..

(in html)

<input type="checkbox" id="checkbox1" value="checkbox1">
<input type="checkbox" id="checkbox2" value="checkbox2">

(in js)

if(($('#checkbox1').attr('checked'))&&($('#checkbox2').attr('checked')) ){
  alert("passed");
} else {
  alert("Referred");    
}

answered Aug 19, 2013 at 7:46

mj930112

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1 Comment

Abijeet Patro Over a year ago

The OP isn't using jQuery.

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