Hi,
Interesting...
"yourForm- where do we mention this in the struts's <html:form> tag....
Thanks!
Sam
(I had similar error where my form on submission would say ".length " is null...was
probably not able to invoke checkbox.length on the form already as struts form is
generated only after hitting the server but we may need javascript validation much
before that-on client side...
please...correct me if i am wrong.
Thanks
my code snipet below:
<html:form action="edit" name="displayForm" type="com.model.DisplayForm" >
<table border="0" width="100%">
<input type=checkbox name="edit_all" value="Check All"
onClick="check(this.form.list)"></th>
......
...
<logic:iterate id="driver" name="drivers">
<input type=checkbox value="list" name="delete_<bean:write name="book" property="ISBN"
/>">
...
...
<SCRIPT LANGUAGE="JavaScript">
var checkflag = "false";
function check(field) {
if (checkflag == "false") {
for (i = 0; i < field.length; i++) {
field[i].checked = true;}
checkflag = "true";
return "Uncheck All"; }
else {
for (i = 0; i < field.length; i++) {
field[i].checked = false; }
checkflag = "false";
return "Check All"; }
}
Brendan Richards <[EMAIL PROTECTED]> wrote:
Sorry - didn't realise you were using javascript validation (should have
read your post more carefully).
You could add your own client side code:
function checkTheBox() {
if (!document.forms['yourForm'].myCheckbox.checked) {
alert("you must check the box to proceed");
return false;
} else {
return true;
}
}
-----Original Message-----
From: Morowitz, Michael [mailto:[EMAIL PROTECTED]
Sent: 17 March 2004 17:14
To: Struts Users Mailing List
Subject: RE: Single Checkbox Required
But, when I mark it "required" in my validator.xml, it doesn't work.
The javascript that is generated (validateRequired) does not apply to
fields of type "checkbox". I suppose I could modify the javascript, but
I want both server side and client-side validation.
-M
-----Original Message-----
From: Brendan Richards [mailto:[EMAIL PROTECTED]
Sent: Wednesday, March 17, 2004 10:52 AM
To: Struts Users Mailing List
Subject: RE: Single Checkbox Required
What makes a checkbox unusual is that it only submits a value when
checked - when unchecked nothing is submitted. You should therefore be
able to validate that it's been checked with a standard "required"
validator.
-----Original Message-----
From: Morowitz, Michael [mailto:[EMAIL PROTECTED]
Sent: 17 March 2004 16:26
To: [EMAIL PROTECTED]
Subject: Single Checkbox Required
I have searched the archive of the list and I came up empty.
I want to use validator.xml to indicate that a single checkbox must be
checked 'true' on my form. Has anyone had success simply indicating a
boolean field to be "required"?
I've noticed that in the client-side javascript that is generated,
validateRequired does not look at fields of type 'checkbox'.
I have read that commons-validator added this functionality at some
point in the past, but has it not made it into the Struts validtion
package?
Thanks,
Michael
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