| Author: indra sena reddy 04 Dec 2008 | Member Level: Silver | Rating:  Points: 2 |
write a javascript function for alert message
in page load event of page
check by if radiobuttionlist.items.checked =true
go on
else
alert (select radio button)
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| Author: Preet 04 Dec 2008 | Member Level: Gold | Rating: Points: 3 |
Use JavaScript function for that, pass three arguments ids of radiobuttons and call it on click of the button.
Try this:-
function chkRadio(rdoLst)
{
var ele,i;
ele = document.getElementById(rdoLst);
for(i=0;i<ele.Items.Count;i++)
{
if(ele.Items[i].checked==true)
break;
}
if(i>ele.Items.Count)
alert("pls select item");
}
Hope it helps
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| Author: srikanth ravipati 04 Dec 2008 | Member Level: Silver | Rating: Points: 3 |
Hi
function checkform(form)
{
var checked = false;
var buttons = form.elements.button;
for (var i=0; i<buttons.length; i++)
{ if (buttons[i].checked) { checked = true; break; } } if(!checked) alert("you have to choose a button"); return checked ; }
.
onsubmit="return checkform(this)"
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