Disable Textbox

I have tested every solution shown in the forums from these posts and none work:
http://www.gravityhelp.com/forums/topic/make-a-readonly-field#post-7034
http://www.gravityhelp.com/forums/topic/read-only-fields-1
http://www.gravityhelp.com/forums/topic/terms-and-conditions-text-record-in-form-entries-database#post-25225

I need to be able to pass a variable in the url, display it in a field, make it readonly, and store it in the db.

I really don't know why setting a field to readonly isn't an included option...like a simple checkbox...seriously...

Hey David...

I get that it's about collecting info, but it seems like a simple thing to add and there have been plenty of people interested.

If I knew why it hasn't worked, I could've fixed it ;) The short answer is this - any field I try to disable still allows editing. Even the source shows that the css is set to disabled, but the fields remain unchanged.

Unfortunately I can't post a link to it publicly, but here's what I tried:
1. Adding the filters (1 at a time) to the theme's function file and setting the input field's css to readonly or disabled (whatever the filter called for)

2. Followed another David's post here: http://www.gravityhelp.com/forums/topic/make-a-readonly-field#post-7034

I'll keep working on a solution, but any ideas as to how to disable a field would be helpful.

Thanks...

Rob

It needs to be dynamic - I need to display a variable that's passed in the url AND save it to the database.

I just gave up trying to do it easily...added a hidden field that's self populated from the post and grabbed that info in the page directly via php so I could display it too.

I still think there's a use for having a field type that allows text to be passed and saved in the db without allowing users the ability to edit it.

Here's what we had to accomplish:
1. Pass a member id via url
2. Add text to the beginning of it
3. Display it on screen
4. Save that same info to the db

URL sent: http://gravityhelp.com/?ref=123456

Form:
Please either call 888-888-8888 and provide them with your customer number: MYID123456 or fill out the form below.

(field with admin view only) - stores 123456 in the db