[Javascript] checkbox to change input field value

[Russell Scheinberg]

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----------Original Message----------

From: "Alan Easton" <alaneaston666 at hotmail.com>
Sent: Mon, May 22, 2006 8:17 AM
To: javascript at LaTech.edu
Subject: Re: [Javascript] checkbox to change input field value

Thanks both of you, but I think I am still going to have problems. 

If the checkboxes are called "allvals", then response,write request("allvals") will = 7899, 7900, 7901, 7902, 7903 and another with the CHECKED values called "checkvals", then response.write request("checkvals") = 7899, 7900, 7903 

So I know 7902 and 7903 are the values that were not checked, just by looking at the 2 variables. 

Sorry, I know I have moved away from JS to solve this problem, but if anyone can advise on how to compare the 2 sets of values, and come back with the 2 that are not checked, then I would appreciate it. 

Many Thanks. 



 



From:  "Mike Dougherty"  mdougherty at pbp.com 
Reply-To:  "\[JavaScript List\]"  javascript at LaTech.edu 
To:  "\[JavaScript List\]"  javascript at LaTech.edu 
Subject:  Re: [Javascript] checkbox to change input field value
Date:  Mon, 22 May 2006 09:03:27 -0400
 I don't know how well this suggestion works with multiple checkboxes 
 having the same name (perhaps the already suggested solutions are 
 'better')
 
 I made a point of doing this:
  input type='checkbox' name='Data1' value='D1' / 
  input type='hidden' name='Data1' value='X' / 
 
 If the checkbox IS checked, the value of "Data1" is 'D1,X'
 If the checkbox is NOT checked, the value of "Data1" is only 'X'
 
 If you do this, you will always be checking (asp example)
 if (Request.Form("Data1").split(',')[0] == "X") { 
 did_not_check_Data1_checkbox }
 
 It is definately a hack.  You get the idea. ymmv
 
 On Mon, 22 May 2006 13:05:58 +0100
   "Alan Easton"  alaneaston666 at hotmail.com  wrote:
  Hi All,   I have a list of 5 checkboxes on a form and each one has 
  the same name "ids", but different values.   What I would like to 
  do when I submit the form, is find out which checkbox was NOT 
  checked.   I realise this is not straight forward, as if a checkbox 
  is not checked, it is not submitted to the server, but can anyone 
  think of a way round this.   I am using ASP, and wanted to simply 
  have the list of ones that were NOT checked returned in a comma 
  seperated list or something like that.   Does anyone have any 
  ideas. Any help would be appreciated.   Thanks,
 
 
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