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Adobe Summit 2023 [19th to 23rd March, Las Vegas and Virtual] | Complete AEM Session & Lab list

error message when populating drop-down list with mysql DB


Not applicable

Hi everyone,

i'm having an error message which gives zero result on google...

here's the context: i have a drop-down list called "Patient" in the template pages of a livecycle form. The binding is set to Global so that the value is the same on the two pages of the form. I have also linked the items of the list to a mysql database (with DataConnection) by clicking the "Specify Item Values" link on the Binding tab of the element.

now, when i open my form (or preview) i get this message, in french:

"Propriété incorrecte de l'opération SET; dataGroup ne possède pas de propriété id."

which is, in english (personal translation):

"Incorrect property of the SET operation; dataGroup doesn't have an id property."

this message appears in a messagebox, the background is empty (standard gray color)

Then i click "OK" (which is the only button available), and my form appears, the list is populated with the values of my database table, so it actually works...

As i said, i have zero results on google with this message...

any idea what it means and how to avoid it?


2 Replies


Level 10


For all things XFA Forms and Databases there is no place better than Stefan Cameron's blog:

Have a look here: and at comment 60.

Good luck,



Not applicable

Thanks Niall. I found the answer at comment 61.

In my DataConnection, i had "select * from (mytable)", and changed the SQL query by selecting everything but the "id" field. The error message disappears. I still don't understand the problem or the solution, but it works fine so i'm happy.