parameterize select statement

[Guest]

Hi
there are two combs in a form. They are all based on select statements to
fill data.
one selection of a comb should decide the other's select statement's where
clause.
How can I do it

Clara

 

[Marshall Barton]

there are two combs in a form. They are all based on select statements to
fill data.
one selection of a comb should decide the other's select statement's where
clause.

Use the first combo box as criteria in the second combo
box's row source query. e.g.

SELECT f1,f2
FROM table2
WHERE f3=Forms!theform.combo2

Then in combo1's AfterUpdate event procedure:
Me.combo2 = Null
Me.combo2.Requery

You will probably also want the Requery line in the form's
Current event.

 

[Guest]

What there is an "All" option item in the first comb list.That will mean the
where clause will be erased away

clara

 

[Marshall Barton]

What there is an "All" option item in the first comb list.That will mean the
where clause will be erased away

You could reconstruct the second combo box's RowSource SQL
statement, but it might be easier to change the query's
criteria for field f3 to:

Forms!theform.combo2 OR Forms!theform.combo2 = "ALL"