Hi Ben.

>> replace user.name with this.DisplayValue <<

Try this instead:

INSERT INTO User ( Name ) VALUES ( This.DisplayValue )
This.Requery()

>> I only knows that i must use this two properties. <<

The only thing that you must have for a combo to work is a RowSourceType and a RowSource.

Typically a combo is used for displaying a set of valid choices from some sort of lookup table from which the user can select. This value is then used to populatye a field in another table to which the control is bound (i.e., its ControlSource).

Perhaps you have chosen the wrong control for the job here. What is it that you are trying to accomplish?

Marcia