Hi
Please help me out with this problem.
There are many check boxes created at runtime on a webform . I want to check that at least one check box must be checked. How should I go about it using C#.

-- Sams

Hi

To help you further, please let us know exactly how the checkboxes are being created? Let us know what code you write to create these runtime checkboxes...

Regards
Mike

Don't expect too much, too soon.

Hi

The code to create the check boxes is roughly given below:

        HtmlInputCheckBox objChk=new HtmlInputCheckBox();
    objChk.ID="chkBox"+i.ToString();

Thanks

You can simply call a javascript function on a button's click event as below:

<input type="button" value="Button" onclick="return Validate()">

*****Javascript function to validate*********
function Validate()
        {
            var iElmCount, counter = 0;

            iElmCount = document.forms[0].elements.length;
            var obj = document.forms[0].elements;

            for (var i = 0; i <= iElmCount - 1; i ++)
            {
                if(obj[i].type == "checkbox")
                {
                    if (obj[i].checked)
                    {
                        counter += 1;
                    }
                }
            }

            if (counter == 0)
            {
                alert("Please select a checkbox.");
                return false;
            }

            return true;
        }

Regards
Mike

Don't expect too much, too soon.

Thanks a lot for your help. Your reply has solved my problem.

Thanks
Sams

Glad I could be of help :)

Regards
Mike

Don't expect too much, too soon.