hi sam first off, javascript is not really fun, but here goes.
your form should have the same name as the formbean you associate with it. you can check this in the html code generated from your jsp. the html:form tag does not supply an attribute for setting/overriding the name of the form (correct me if i'm wrong). furthermore, if you don't want to use the document.forms[...] syntax, you can use things like document.getElementsByName, document.getElementById etc. You could even get all elements in the document, filter out the checkboxes and modify/check attributes like that. you can find a nice explanation of document.forms[] vs. document.getElementsByName when you google for "selfhtml" just make sure that you are working with a browser that gives you nice error messages while debugging your javascript -> like mozilla. andreas -----Ursprungliche Nachricht----- Von: as as [mailto:[EMAIL PROTECTED] Gesendet: Mittwoch, 17. Marz 2004 19:27 An: Struts Users Mailing List Betreff: RE: Single Checkbox Required 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 --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] Do you Yahoo!? Yahoo! Mail - More reliable, more storage, less spam --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
