close ad
Install the LAtest Updates to Work with CC 2017 and CC 2018
open ad
View Menu

Technical Support Forums

Free, outstanding support from WebAssist and your colleagues


Regular Expression for if = -1 on select list

Thread began 2/20/2010 1:47 pm by andy.schofield283961 | Last modified 2/22/2010 2:21 pm by Dani Chankhour | 844 views | 1 replies |


Regular Expression for if = -1 on select list

I am trying to trigger a validation if a select list has a value of -1. I have used the validation toolkit to drive another function with the 'required / not blank / selection made' which works great. But I want to check on page submit for invalid selection of the select list.

Cant figure out how to add an expression which list characters NOT allowed.

Any help would be welcomed.

Sign in to reply to this post

Dani Chankhour

Here is a simple example:

<form id="form1" name="form1" method="post" action="" onsubmit="
if(document.getElementById('select').options[document.getElementById('select').selectedIndex].value == -1) alert('test');">

You will just need to update 'select' with your select id.

Sign in to reply to this post

Build websites with a little help from your friends

Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.

Build websites from already-built web applications

These out-of-the-box solutions provide you proven, tested applications that can be up and running now.  Build a store, a gallery, or a web-based email solution.

Want your website pre-built and hosted?

Close Windowclose

Rate your experience or provide feedback on this page

Account or customer service questions?
Please user our contact form.

Need technical support?
Please visit support to ask a question





Ease of use


security code refresh image

We do not respond to comments submitted from this page directly, but we do read and analyze any feedback and will use it to help make your experience better in the future.

Close Windowclose

We were unable to retrieve the attached file

Close Windowclose

Attach and remove files

add attachmentAdd attachment
Close Windowclose

Enter the URL you would like to link to in your post

Close Windowclose

This is how you use right click RTF editing

Enable right click RTF editing option allows you to add html markup into your tutorial such as images, bulleted lists, files and more...

-- click to close --

Uploading file...