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Question

Status: Open Points: 75 Time: 10:25 - May 04, 2009

claudio363

single radio button validation

hi, i have a problem with radio button.
i generate dinamically my radio button and if i have only one radio button i can't use the radio button length because it's undefined.
Can i do for validate it?

Categories:

Button validation

Answer Discussion

Tutorials

teddyjas

Date:: May 05, 2009

Time:: 08:51

what do you want to validate it?
Do you mean you want to validate the value?

Muhammad Amman

Date:: May 06, 2009

Time:: 12:03

claudio in this way u validate the button of radio look simple program:
</html>
</head>
<script type="text/javascript">
function valbutton(thisform) {
// place any other field validations that you require here
// validate myradiobuttons
myOption = -1;
for (i=thisform.myradiobutton.length-1; i > -1; i--) {
if (thisform.myradiobutton[i].checked) {
myOption = i; i = -1;
}
}
if (myOption == -1) {
alert("You must select a radio button");
return false;
}

alert("You selected button number " + myOption
+ " which has a value of "
+ thisform.myradiobutton[myOption].value);

// place any other field validations that you require here
thisform.submit(); // this line submits the form after validation
}

</script>
</head>
<body>
<form name="myform">
<input type="radio" value="1st value" name="myradiobutton" />1st<br />
<input type="radio" value="2nd value" name="myradiobutton" />2nd<br />
<input type="radio" value="3rd value" name="myradiobutton" />3rd<br /> <br />
<input type="submit" name="submitit" onclick="valbutton(myform);return false;" value="Validate" />
<input type="reset" name="reset" value="Clear" />
</form>

</body>
</html>

claudio363

Date:: May 11, 2009

Time:: 04:04

Hi, i buyild dinamically my radio button and when there is only one of this this javascript don't function.

I post my solution for this ptoblem :

function isOneCheked(objForm){

for(jj=0; jj<= objForm.check_user.length; jj++)
{
if(objForm.check_user[jj].checked)
{
break;
return true;
}
}
return false;
}

function sigleRadioValue(objForm){
if(objForm.check_user.checked){
return true;
}else{
return false;
}
}

function validateChekSelection(objForm){
if(!isOneCheked(objForm))
{
if(!sigleRadioValue(objForm)){
window.alert("Selezionare almeno un utente");
return ;
}else{
objForm.submit();
}
}else
{
objForm.submit();
}
}

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