Web App - different input type when submitting

Question

I have a Web App image field on a customer submitted Web App field.
It is originally inserted as
<input type="field" name="CAT_Custom_22222" ... />
But I'm using it as
<input type="text" name="CAT_Custom_22222" ... />
and from another dropdown field input, a jQuery snippet would grab the value and insert into it
so then it would look like this
<input type="text" name="CAT_Custom_22222" ... value="/image/image-set/A/C/E/111.jpg" />
The dropdown has set of pre-defined URL of images so when users change, it will print the image on the page as well as update the IMAGE field to be submitted.
It was set up that way due to another "non-web-person-client-case"
There are random "users" submitting the web form and they are meant to upload certain file from limited selection anyway so I set up the dropdown.
If an administrator needs to change the image, he can log into backend and upload image and of course he's not capable of finding correct URL path and type it in
(that's why it couldn't be a text field in the first place)
Long story short, this has been working beautifully for last couple of years then suddenly stopped working. I guess there must have been a change where BC wouldn't accept type="text" for a field meant to be type="file". It's bit disappointing as BC database would still save it in string format anyway.
Any suggestion to this ?

Answer 1

Hi,
Please see the links and check they are helpful:
http://blogs.office.com/2013/08/01/introducing-a-new-user-experience-feature-in-access-web-apps-cascading-controls/
http://msdn.microsoft.com/en-us/library/office/jj249372(v=office.15).aspx
Then, the issue is more related to Access web app DEV, I recommend you post the question to MSDN forum for Access: 
http://social.msdn.microsoft.com/Forums/en-US/home?forum=accessdev&filter=alltypes%2Calllanguages&sort=lastpostdesc
Thanks for your understanding.
Regards,
George Zhao
TechNet Community Support