How to add comma seperated values according to the checkboxes in textbox?
I have 3 checkboxes and 1 textbox
i use only these controls mentioned above ..
I want ---- when i check checkbox1 and checkbox2 then it will display in textbox1 as 1开发者_JAVA技巧,2 as it is as the same ascending order not 1,2, or 2,1,
I use this type of coding in asp.net (VB) , i wanna use this coding for 45 checkboxes........
Can anybody solve this problem in asp.net (vb)
JS solution (needs adaptation to your markup) as question is tagged with javascript
<html>
<head>
<title>S.O. 4121588</title>
<script type="text/javascript">
var gMax = 45;
function $(aId) {
return document.getElementById(aId);
}
// generates gMax checkboxes with value from 1 to gMax
function onload() {
var form = $('theForm');
for (var i = 1; i != gMax; i++) {
var cb = document.createElement('input');
cb.setAttribute('type', 'checkbox');
cb.setAttribute('id', 'checkbox-' + i);
cb.setAttribute('value', i);
form.appendChild(cb);
}
}
// update the result textarea
function updateResult() {
var num = [ ];
for (var i = 1; i != gMax; i++) {
var cb = $('checkbox-' + i);
if (cb.checked) {
num.push(cb.getAttribute('value'));
}
}
$('result').innerHTML = num.join(", ");
}
</script>
</head>
<body onload='onload()'>
<form id="theForm"></form>
<input type="button" id="resultBtn" value="Result"
onclick="updateResult()" />
<br/>
<textarea id="result"></textarea>
</body>
</html>
Tested under Chrome 9.0.570.1 dev
加载中,请稍侯......
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