Check items

[Tina]

I have a requirement that when the user check the checkbox he should not be able to check the other items.i want this from client side.

[Princy]

Hello,

You can try the following javascript.
JS:

<script type="text/javascript">
 function OnClientItemChecking(sender, args)
    {
      if (sender.get_checkedItems().length == 1)
       {
        args.set_cancel(true);
       }
    }
</script>

Thanks,
Princy.