I fear I am missing something very obvious, but am at a loss to see it....

Suppose I have "Fruits" table with 2 fields - "group","type". I have 6 records with the following data in the 2 fields:

"Apple","Cox"
"Apple","Desire"
"Banana", "Panama"
"Cherry", "Delight"
"Banana", "Spanish"
"Cherry", "BlackJack"

I have a form with the "Fruits" table in the dataenvironment and a combobox set to style 0 - dropdown combo - with rowsourcetype set to SQL and the rowsource set to: "select distinct fruits.type from fruit into cursor mylist"
The control source for the combobox is set to Fruits.group.
This provides a combobox with the entries "Apple","Banana","Cherry" and also allows user input of another group item.

When adding a new record,as well as accepting existing entries, I want to be able to add a further "group" on-the-fly e.g. "Oranges" with a "type" entry of say "Seville".

My problem is that when I type in a new group entry it is not stored to the underlying Fruits table. The underlying table will only accept values listed in the sql cursor. The field Fruits.group remains empty, although the Fruits.type field is correctly filled.

At present I can not see how typing anything in the textbox portion of a combobox ever gets saved. I am clearly missing the point here - can someone explain what I am doing wrong? (Databuffering on the table is set to 0)

Thanks
Barry Sutton