problem in retriving multiple checkbox values
I am unable to access the values of checkboxes i select. Here is my code which i tried.
<input type="checkbox" id="<%= "gname_" + in.intValue() %>" name="chkBox" onclick='chkboxSelect(localArrGroupNames[<%=in.intValue() %>],<%= "gname_" + in.intValue() %>)'>
JS code:
function chkboxSelect( chkBoxValue, id){
var i=0;
if(id.checked) {
var selected;
alert("id: " + chkBoxValue + i);
selected[i] = chkBoxValue;
i++;
}
}
I get only one value in my alert though I select more than one value. For example if开发者_开发百科 i select red, blue, green, After I select each, I get only one in my alert. Please help me . Thanks in advance.
If all checkboxes have the same name chkBox
<!DOCTYPE HTML>
<html>
<head>
<title>Title of the document</title>
<script>
function getValues(){
var cbs = document.getElementsByName('chkBox');
var result = '';
for(var i=0; i<cbs.length; i++) {
if(cbs[i].checked ) result += (result.length > 0 ? "," : "") + cbs[i].value;
}
alert(result);
return result;
}
</script>
</head>
<body>
<input type="checkbox" id="gname_1" name="chkBox" onclick='getValues();' value='red'>Red<br>
<input type="checkbox" id="gname_2" name="chkBox" onclick='getValues();' value='green'>Green<br>
<input type="checkbox" id="gname_3" name="chkBox" onclick='getValues();' value='blue'>Blue<br>
</body>
</html>
If you use multiple checkboxes with the same name, your code shoud be like this:
<input type="checkbox" name="chkBox[]" value="red">
<input type="checkbox" name="chkBox[]" value="green">
<input type="checkbox" name="chkBox[]" value="blue">
if you submit the form, you will get an array... ($_POST['chkBox'][0])
加载中,请稍侯......
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