[Javascript] Re: turning on checkboxes

Mon Aug 13 15:46:27 CDT 2001

Why not just check for checkboxes?

 .b

> -----Original Message-----
> From: javascript-admin at LaTech.edu [mailto:javascript-admin at LaTech.edu]On
> Behalf Of susan at plonka.com
> Sent: 13 August 2001 21:32
> To: Javascript at LaTech.edu
> Subject: [Javascript] Re: turning on checkboxes
> 
> 
> I'm having trouble getting your solution working. It says 
> document.memberForm.element is null or not an object. After printing 
> alert 1, it fails before alert 2. Any suggestions on how I might test 
> for nulls?
> 
> function selectAll(){
> 	for ( var i =0; i < document.memberForm.length; i++){
> 		alert("alert 1");
> 		if ( document.memberForm.element[i] != null){
> 			alert("alert 2");
> 			if ( document.memberForm.element[i].type 
> == "checkbox"){
> 				alert("alert 3");
> 				document.memberForm.element
> [i].checked = TRUE;
> 			}
> 		}
>   	}
> }
> 
> Thanks,
> -Susan
> 
> ------------------------Bob Filipiak -----------------------
> 
> function selectAll(){ 
>   for ( var i =0; i < document.forms[0].length; i++){ 
>       if ( document.forms[0].element[i].type == "checkbox"){ 
>           document.forms[0].element[i].checked = TRUE; 
>       } 
> 
>   } 
> } 
> 
> HTH 
> 
> Bob Filipiak (Contractor) 
> MCP 
> 
> -----Original Message----- 
> From: susan at plonka.com [mailto:susan at plonka.com] 
> Sent: Friday, August 10, 2001 10:48 AM 
> To: javascript at LaTech.edu 
> Subject: [Javascript] turning on checkboxes 
> 
> 
> 
> I'm trying to figure out how to make a "Select All checkboxes" button 
> function. 
> 
> The checkboxes are generated dynamically in a loop from reading a 
> database and their names correspond to the memberID. I don't know how 
> many, that's dynamic too. 
> 
> I want to be able to get the checkbox names and turn them all on with 
> this button. 
> 
> <script language="JavaScript"> 
>         function selectAll() { 
>                 document.members.cb1050.checked = true 
>         } 
> <script> 
> 
> <body><table> <!--- SQL stuff --> 
>         <% do while not connMembers.eof %> 
>         <tr><td> 
>                 <input type="checkbox" name="<%= connMembers(0) %>"> 
>         </td></tr> 
>         <% connMembers.movenext 
>         Loop %> 
>         </table> 
>         
>         <table width="500"><tr><td width="100%" align="center"> 
>         <input type="button" value="Select All" onclick="selectAll
> ()"> 
>         </td></tr></table> 
> </body> 
> 
> 
> 
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