ms access 2013 before insert raise validation error

[sparc]

Hello,
I use before insert code procedure to insert default value for one, or more fields in row. It is normal to have these fields are disabled. This event occurs when you try to enter a value in any another field in a row. However , when I finish entering the field going to the event before update regardless and trigger a validation of all fields in a row. I am not leaving from row , I want to go further input in other fields.
How to insert default (calculated) values in new row.
Thank you in advanced.

 

[spikepl]

It is very hard to understand what your issue is. Provide a step-by-step example with just enough fields (2, I presume) to illustrate your problem.

 

[sparc]

Thank you, for your ansfer, this problem occurs in sub-subform, in tab control that occurs sub-tabcontrol, solution is in simplification of forms.
It is sad that MS Access can not perform any stunts, but need to think simply.