How to change color of background for dropdown list according to selected color IN JAVASCRIPT?

Question

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HTML

<script>
function clrchange()
{
document.bgColor=document.getElementById('s1').value;
}

function cha()
{
a=document.getElementById('s1').value;
if(a.getElementById('r1'))
{
document.getElementById('r1').style.background="red";
}
else if(a.getElementById('r2'))
{
document.getElementById('r2').style.background="green";
}
else if(a.getElementById('r3'))
{
document.getElementById('r3').style.background=a;
}
}
}
</script>
<select id=s1 onchange=clrchange()>
<option id=r1 onmouseover=cha()>red</option>
<option id=r2 onmouseover=cha()>blue</option>
<option id=r3 onmouseover=cha()>green</option>
<select>

Posted 18-Apr-14 15:48pm

Member 10759530

Updated 18-Apr-14 16:05pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

v2

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3 solutions

Solution 2

Hi. If you are trying to change the background color of the page, than your code will work fine.
But if you are trying to change the background color of the Dropdown than use below code

JavaScript

function clrchange()
{
var bgcolor = document.getElementById('s1').value;
document.getElementById('s1').style.backgroundColor = bgcolor;
}

Hope this will help you.

Posted 18-Apr-14 19:54pm

DotNet WeblineIndia

Updated 18-Apr-14 19:55pm

v2

Solution 3

Javascript Code:

JavaScript

function clrchange(SelectedColor)
{
    document.bgColor=SelectedColor;
}

HTML

<select id=s1 onchange="clrchange(this.value);">
<option id="r1" onmouseover="cha(this.id,this.value);" value="red">red</option>
<option id="r2" onmouseover="cha(this.value);" value="blue">blue</option>
<option id="r3" onmouseover="cha(this.value);" value="green">green</option>
<select>

Posted 18-Apr-14 20:41pm

HardikPatel.SE

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Accepted Answer · 2014-04-18T16:21:00

Solution 1

You have not defined any value attribute for the options, but trying to read the value in code.
Please provide values, else read the option text.

Posted 18-Apr-14 16:21pm

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)