how to control two checkboxes

erin · #1 (**permalink**) October 27th, 2003, 03:21 PM

How can I control two checkboxes with different names. I want to check only one checkbox at a time.

Thanks.

sal · #2 (**permalink**) October 27th, 2003, 03:45 PM

What exactly do you mean by "control two checkboxes with different names"

If you only need to hceck one item at a time, create radio buttons. (option Buttons/ option group).

It is not good programming to change the meaning of a checkbox to act as a option group.

Sal

erin · #3 (**permalink**) October 27th, 2003, 04:21 PM

I used to use the following codes for the controlling 2 checkboxes.
<HEAD>

<SCRIPT LANGUAGE="JavaScript">
function checkBoxValidate(cb) {
for (j = 0; j < 2; j++) {
if (eval("document.myform.ckbox[" + j + "].checked") == true) {
document.myform.ckbox[j].checked = false;
if (j == cb) {
document.myform.ckbox[j].checked = true;
}
}
}
}
</script>

</HEAD>
</head>

<body>

<BODY>

<form name=myform action ="NextPage.asp">
Selection 1<input type="checkbox" name="ckbox" onClick="javascript:checkBoxValidate(0)"><br>
Selection 2<input type="checkbox" name="ckbox" onClick="javascript:checkBoxValidate(1)"><br>

---------------------------------------------------------------

Now I have been working with this code:

<form name="MyForm" METHOD="Post" ACTION="NextPage.asp
<table><tr>
<td>font size=3><b>Root Cause:</b>
<input TYPE="checkbox" NAME="RootCause"></td>
<td><b>Fin Approval:</b>
<input TYPE="checkbox" NAME="FinApproval"></td>
</tr></table>

In the NextPage.asp:
<%if Request.form("FinApproval") = "on" then%>
STATEMENT1.......
<%end if%>
<%if Request.form("RootCause") = "on" then%>
STATEMENT2.......
<%end if%>

Is there any way that I can control the checkbox( means check only one checkbox at a time like radio button)with different checkbox names or any suggestion is welcome,

Thanks...

sal · #4 (**permalink**) October 27th, 2003, 04:47 PM

Use radio button. Do not confuse users.

Radio buttons = select one
chechbox = select multiples.

do not change the rules

Sal

erin · #5 (**permalink**) October 27th, 2003, 05:02 PM

Is there any possiblitiy to unclick radio button then? As I know of, you can't unclick radio buttons without resetting the whole form. User has chance to click/unclick without reseting the whole form using the checkboxes. That's why I would like to use checkbox. Am I missing something?

sal · #6 (**permalink**) October 27th, 2003, 06:22 PM

Can you try setting the value to 0?

Sal