At 08:23 AM 13/07/2006, you wrote:

>I'm using IBO4.5
>A form has a TIB_Grid, a TIB_Query and a TIB_DataSource. Query has a
>calculated varchar(10) field, which is calculated OnCalculateField
>event and is showed on TIB_Grid, among other non calculated fields.
>For existing records, all fine. My problem is: after adding a new
>record, the calculated field cell shows nothing on TIB_Grid.
>What is the correct way to solve it?

Call the dataset's CalculateFields method.

Helen