You must enter a value in the 'tblMaintenanceEntries.Responsible Person' field help

[Pookiemeister]

As the title /subject line states, I have a required multiselect listbox control. Even after a selection Is made, it still displays the message in the subject/title. How can I fix? Thank you.

 

[Micron]

Is there code behind the listbox?
Does the message pertain to the listbox and the field it is bound to, or some other field?
Is the listbox bound column linked to the required field?

 

[Pookiemeister]

Is there code behind the listbox?