Close. Using your example above, if I check a radio button in each of the two groups, but leave the text fields blank, I get the alerts, but also get the "OK" alert, and then the form submits...
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Question
Radio button validation, varying number of groups
I have a form that will have:
1. A variable number of groups of radio buttons, but at least one group.
2. Each group will have a variable number of actual radio buttons, but at least two.
3. Two text fields.
I need a script that will ensure that a radio button is checked in each group, and the 2 text fields each have a value. This needs to work for any number of radio button groups, and for any number of radio buttons per group.
Thanks.
Example form:
<form name="myForm">
<table>
<tr>
<td align="right">Question 1:</td>
</tr>
<tr>
<td>1 -- <input type="radio" name="rdoQ_1" value="1"></td>
</tr>
<tr>
<td>2 -- <input type="radio" name="rdoQ_1" value="2"></td>
</tr>
<tr>
<td>3 -- <input type="radio" name="rdoQ_1" value="3"></td>
</tr>
<tr>
<td align="right">Question 2:</td>
</tr>
<tr>
<td>1 -- <input type="radio" name="rdoQ_2" value="1"></td>
</tr>
<tr>
<td>2 -- <input type="radio" name="rdoQ_2" value="2"></td>
</tr>
<tr>
<td>3 -- <input type="radio" name="rdoQ_2" value="3"></td>
</tr>
<tr>
<td>4 -- <input type="radio" name="rdoQ_2" value="4"></td>
</tr>
<tr>
<td>5 -- <input type="radio" name="rdoQ_2" value="5"></td>
</tr>
</table>
<input type="text" name="txt1"><br>
<input type="text" name="txt2"><br>
<input type="submit" value="Submit">
</form>
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Answers
<html>
<head>
<title>Radio Validate Document</title>
</head>
<body>
<script language="javascript">
var radNames = new Array();
var radValues = new Array();
var radCnt = 0;
var txtFlds = new Array();
var txtCnt = 0;
function UpdateFieldList (radObj) {
var bFound = false;
for (var rx=0; rx < radCnt; rx++) {
if (radObj.name.match(radName
bFound = true;
break;
}
}
if (!bFound) {
radNames[radCnt] = radObj.name;
radValues[radCnt] = '';
radCnt++;
}
}
function UpdateValueList (radObj) {
for (var rx=0; rx < radNames.length; rx++) {
if (radObj.name.match(radName
radValues[rx] = radObj.value;
break;
}
}
}
function CheckForSelection () {
var retCode = true;
for (var rx=0; rx < radValues.length; rx++) {
if (!radValues[rx].length) {
alert ('Radio Button ' + radNames[rx] + ' is not selected');
retCode = false;
}
}
for (var tx=0; tx < txtFlds.length; tx++) {
if (!txtFlds[tx].value.length
alert ('Text Field ' + txtFlds[tx].name + ' has no value');
retCode = false;
}
}
return (retCode);
}
function validatePage(form) {
var elems = form.elements;
for (var ix=0; ix < elems.length; ix++) {
var elem = elems[ix];
if (elem.type.match('radio'))
UpdateFieldList(elem);
if (elem.checked) {
UpdateValueList(elem);
}
}
if (elem.type.match('text')) {
txtFlds[txtCnt++] = elem;
}
}
if (CheckForSelection()) {
alert ('OKAY');
}
else {
return false;
}
return (CheckForSelection());
}
</script>
<form name="myForm">
<table>
<tr>
<td align="right">Question 1:</td>
</tr>
<tr>
<td>1 -- <input type="radio" name="rdoQ_1" value="1"></td>
</tr>
<tr>
<td>2 -- <input type="radio" name="rdoQ_1" value="2"></td>
</tr>
<tr>
<td>3 -- <input type="radio" name="rdoQ_1" value="3"></td>
</tr>
<tr>
<td align="right">Question 2:</td>
</tr>
<tr>
<td>1 -- <input type="radio" name="rdoQ_2" value="1"></td>
</tr>
<tr>
<td>2 -- <input type="radio" name="rdoQ_2" value="2"></td>
</tr>
<tr>
<td>3 -- <input type="radio" name="rdoQ_2" value="3"></td>
</tr>
<tr>
<td>4 -- <input type="radio" name="rdoQ_2" value="4"></td>
</tr>
<tr>
<td>5 -- <input type="radio" name="rdoQ_2" value="5"></td>
</tr>
</table>
<input type="text" name="txt1"><br>
<input type="text" name="txt2"><br>
<input type="submit" value="Submit" onClick="return (validatePage(this.form));
</form>
</body>
</html>
That's it, with one minor issue.
Let's say I click submit with 2 things wrong: one of the radio button groups does not have a selection, and one of the text fields is empty. If I correct the radio group by making a selection, and then click submit again before correcting the empty text field, then I am alerted twice for the empty text field.
In fact, for each time I click submit with an empty text field, I am alerted that many more times...
Another example:
All fields are ok except one text field. I click submit. I get an alert. I click the "ok" in the alert, but do not correct the empty field. I click submit again. Now I get 2 alerts for that field. I click "ok" in each of them, clcik submit again, now 3 alerts...
Is there a way to limit this to one alert?
Thanks
This should do it..
Added a ResetCounters()..
<html>
<head>
<title>Radio Validate Document</title>
</head>
<body>
<script language="javascript">
var radNames = new Array();
var radValues = new Array();
var radCnt = 0;
var txtFlds = new Array();
var txtCnt = 0;
function ResetCounters() {
radCnt =0;
txtCnt =0;
}
function UpdateFieldList (radObj) {
var bFound = false;
for (var rx=0; rx < radCnt; rx++) {
if (radObj.name.match(radName
bFound = true;
break;
}
}
if (!bFound) {
radNames[radCnt] = radObj.name;
radValues[radCnt] = '';
radCnt++;
}
}
function UpdateValueList (radObj) {
for (var rx=0; rx < radNames.length; rx++) {
if (radObj.name.match(radName
radValues[rx] = radObj.value;
break;
}
}
}
function CheckForSelection () {
var retCode = true;
for (var rx=0; rx < radValues.length; rx++) {
if (!radValues[rx].length) {
alert ('Radio Button ' + radNames[rx] + ' is not
selected');
retCode = false;
}
}
for (var tx=0; tx < txtFlds.length; tx++) {
if (!txtFlds[tx].value.length
alert ('Text Field ' + txtFlds[tx].name + ' has no
value');
retCode = false;
}
}
return (retCode);
}
function validatePage(form) {
ResetCounters();
var elems = form.elements;
for (var ix=0; ix < elems.length; ix++) {
var elem = elems[ix];
if (elem.type.match('radio'))
UpdateFieldList(elem);
if (elem.checked) {
UpdateValueList(elem);
}
}
if (elem.type.match('text')) {
txtFlds[txtCnt++] = elem;
}
}
if (CheckForSelection()) {
alert ('OKAY');
}
else {
return false;
}
return (CheckForSelection());
}
</script>
<form name="myForm">
<table>
<tr>
<td align="right">Question 1:</td>
</tr>
<tr>
<td>1 -- <input type="radio" name="rdoQ_1" value="1"></td>
</tr>
<tr>
<td>2 -- <input type="radio" name="rdoQ_1" value="2"></td>
</tr>
<tr>
<td>3 -- <input type="radio" name="rdoQ_1" value="3"></td>
</tr>
<tr>
<td align="right">Question 2:</td>
</tr>
<tr>
<td>1 -- <input type="radio" name="rdoQ_2" value="1"></td>
</tr>
<tr>
<td>2 -- <input type="radio" name="rdoQ_2" value="2"></td>
</tr>
<tr>
<td>3 -- <input type="radio" name="rdoQ_2" value="3"></td>
</tr>
<tr>
<td>4 -- <input type="radio" name="rdoQ_2" value="4"></td>
</tr>
<tr>
<td>5 -- <input type="radio" name="rdoQ_2" value="5"></td>
</tr>
</table>
<input type="text" name="txt1"><br>
<input type="text" name="txt2"><br>
<input type="submit" value="Submit" onClick="return
(validatePage(this.form));
</form>
</body>
</html>
<html>
<head>
<title>Radio Validate Document</title>
</head>
<body>
<script language="javascript">
var radNames = new Array();
var radValues = new Array();
var radCnt = 0;
var txtFlds = new Array();
var txtCnt = 0;
function ResetCounters() {
radCnt =0;
txtCnt =0;
}
function UpdateFieldList (radObj) {
var bFound = false;
for (var rx=0; rx < radCnt; rx++) {
if (radObj.name.match(radName
bFound = true;
break;
}
}
if (!bFound) {
radNames[radCnt] = radObj.name;
radValues[radCnt] = '';
radCnt++;
}
}
function UpdateValueList (radObj) {
for (var rx=0; rx < radNames.length; rx++) {
if (radObj.name.match(radName
radValues[rx] = radObj.value;
break;
}
}
}
function CheckForSelection () {
var retCode = true;
for (var rx=0; rx < radValues.length; rx++) {
if (!radValues[rx].length) {
alert ('Radio Button ' + radNames[rx] + ' is not selected');
retCode = false;
}
}
for (var tx=0; tx < txtFlds.length; tx++) {
if (!txtFlds[tx].value.length
alert ('Text Field ' + txtFlds[tx].name + ' has no value');
retCode = false;
}
}
return (retCode);
}
function validatePage(form) {
ResetCounters();
var elems = form.elements;
for (var ix=0; ix < elems.length; ix++) {
var elem = elems[ix];
if (elem.type.match('radio'))
UpdateFieldList(elem);
if (elem.checked) {
UpdateValueList(elem);
}
}
if (elem.type.match('text')) {
txtFlds[txtCnt++] = elem;
}
}
if (CheckForSelection()) {
alert ('OKAY');
}
else {
return false;
}
return (CheckForSelection());
}
</script>
<form name="myForm">
<table>
<tr>
<td align="right">Question 1:</td>
</tr>
<tr>
<td>1 -- <input type="radio" name="rdoQ_1" value="1"></td>
</tr>
<tr>
<td>2 -- <input type="radio" name="rdoQ_1" value="2"></td>
</tr>
<tr>
<td>3 -- <input type="radio" name="rdoQ_1" value="3"></td>
</tr>
<tr>
<td align="right">Question 2:</td>
</tr>
<tr>
<td>1 -- <input type="radio" name="rdoQ_2" value="1"></td>
</tr>
<tr>
<td>2 -- <input type="radio" name="rdoQ_2" value="2"></td>
</tr>
<tr>
<td>3 -- <input type="radio" name="rdoQ_2" value="3"></td>
</tr>
<tr>
<td>4 -- <input type="radio" name="rdoQ_2" value="4"></td>
</tr>
<tr>
<td>5 -- <input type="radio" name="rdoQ_2" value="5"></td>
</tr>
</table>
<input type="text" name="txt1"><br>
<input type="text" name="txt2"><br>
<input type="submit" value="Submit" onClick="return
(validatePage(this.form));
</form>
</body>
</html>
I am using your code as is except for these lines:
alert ('Radio Button ' + radNames[rx] + ' is not
selected');
and:
alert ('Text Field ' + txtFlds[tx].name + ' has no
value');
Which I changed to:
alert ('Radio Button ' + radNames[rx] + ' is not selected');
And:
alert ('Text Field ' + txtFlds[tx].name + ' has no value');
Take this one
<html>
<head>
<title>Radio Validate Document</title>
</head>
<body>
<script language="javascript">
var radNames = new Array();
var radValues = new Array();
var radCnt = 0;
var txtFlds = new Array();
var txtCnt = 0;
function ResetCounters() {
radCnt =0;
txtCnt =0;
}
function UpdateFieldList (radObj) {
var bFound = false;
for (var rx=0; rx < radCnt; rx++) {
if (radObj.name.match(radName
bFound = true;
break;
}
}
if (!bFound) {
radNames[radCnt] = radObj.name;
radValues[radCnt] = '';
radCnt++;
}
}
function UpdateValueList (radObj) {
for (var rx=0; rx < radNames.length; rx++) {
if (radObj.name.match(radName
radValues[rx] = radObj.value;
break;
}
}
}
function CheckForSelection () {
var retCode = true;
for (var rx=0; rx < radValues.length; rx++) {
if (!radValues[rx].length) {
alert ('Radio Button ' + radNames[rx] + ' is not selected');
retCode = false;
}
}
for (var tx=0; tx < txtFlds.length; tx++) {
if (!txtFlds[tx].value.length
alert ('Text Field ' + txtFlds[tx].name + ' has no value');
retCode = false;
}
}
if (retCode) { alert ('Every thing Okay'); }
return (retCode);
}
function validatePage(form) {
ResetCounters();
var elems = form.elements;
for (var ix=0; ix < elems.length; ix++) {
var elem = elems[ix];
if (elem.type.match('radio'))
UpdateFieldList(elem);
if (elem.checked) {
UpdateValueList(elem);
}
}
if (elem.type.match('text')) {
txtFlds[txtCnt++] = elem;
}
}
return (CheckForSelection());
}
</script>
<form name="myForm">
<table>
<tr>
<td align="right">Question 1:</td>
</tr>
<tr>
<td>1 -- <input type="radio" name="rdoQ_1" value="1"></td>
</tr>
<tr>
<td>2 -- <input type="radio" name="rdoQ_1" value="2"></td>
</tr>
<tr>
<td>3 -- <input type="radio" name="rdoQ_1" value="3"></td>
</tr>
<tr>
<td align="right">Question 2:</td>
</tr>
<tr>
<td>1 -- <input type="radio" name="rdoQ_2" value="1"></td>
</tr>
<tr>
<td>2 -- <input type="radio" name="rdoQ_2" value="2"></td>
</tr>
<tr>
<td>3 -- <input type="radio" name="rdoQ_2" value="3"></td>
</tr>
<tr>
<td>4 -- <input type="radio" name="rdoQ_2" value="4"></td>
</tr>
<tr>
<td>5 -- <input type="radio" name="rdoQ_2" value="5"></td>
</tr>
</table>
<input type="text" name="txt1"><br>
<input type="text" name="txt2"><br>
<input type="submit" value="Submit" onClick="return (validatePage(this.form));
</form>
</body>
</html>
I have few samples for you
http://www.asarconsultants
http://www.asarconsultants
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by: pravinasarPosted on 2006-04-07 at 11:51:23ID: 16403382
Here is a working example... hope this serves your purpose...
<html>
<head>
<title>Radio Validate Document</title>
</head>
<body>
<script language="javascript">
var radNames = new Array();
var radValues = new Array();
var radCnt = 0;
function UpdateRadioList (radObj) {
var bFound = false;
for (var rx=0; rx < radCnt; rx++) {
if (radObj.name.match(radName
bFound = true;
break;
}
}
if (!bFound) {
radNames[radCnt] = radObj.name;
radValues[radCnt] = '';
radCnt++;
}
}
function UpdateValueList (radObj) {
for (var rx=0; rx < radNames.length; rx++) {
if (radObj.name.match(radName
radValues[rx] = radObj.value;
break;
}
}
}
function CheckForSelection () {
for (var rx=0; rx < radValues.length; rx++) {
if (!radValues[rx].length) {
alert ('Radio Button ' + radNames[rx] + ' is not selected');
return false;
}
}
return true;
}
function validatePage(form) {
var elems = form.elements;
for (var ix=0; ix < elems.length; ix++) {
var elem = elems[ix];
if (elem.type.match('radio'))
UpdateRadioList(elem);
if (elem.checked) {
UpdateValueList(elem);
}
}
if (elem.type.match('text')) {
if (!elem.value.length) {
alert ('Text Field ' + elem.name + ' has no value');
}
}
}
if (CheckForSelection()) {
alert ('OKAY');
}
else {
return false;
}
return (CheckForSelection());
}
</script>
<form name="myForm">
<table>
<tr>
<td align="right">Question 1:</td>
</tr>
<tr>
<td>1 -- <input type="radio" name="rdoQ_1" value="1"></td>
</tr>
<tr>
<td>2 -- <input type="radio" name="rdoQ_1" value="2"></td>
</tr>
<tr>
<td>3 -- <input type="radio" name="rdoQ_1" value="3"></td>
</tr>
<tr>
<td align="right">Question 2:</td>
</tr>
<tr>
<td>1 -- <input type="radio" name="rdoQ_2" value="1"></td>
</tr>
<tr>
<td>2 -- <input type="radio" name="rdoQ_2" value="2"></td>
</tr>
<tr>
<td>3 -- <input type="radio" name="rdoQ_2" value="3"></td>
</tr>
<tr>
<td>4 -- <input type="radio" name="rdoQ_2" value="4"></td>
</tr>
<tr>
<td>5 -- <input type="radio" name="rdoQ_2" value="5"></td>
</tr>
</table>
<input type="text" name="txt1"><br>
<input type="text" name="txt2"><br>
<input type="submit" value="Submit" onclick="return (validatePage(this.form));
</form>
</body>
</html>