I would use a form or a report (based on the query) to present the result to the user.
If this helped, please click the star at the bottom left of this posting and add to my reputation. Many thanks.
Bob Fitzpatrick
In the afterupdate event for the text box
me.requery
What is the code behind the Search button?
You might consider (untested)
-in the before Update event of the Form
---ensure there is a valid Date
---ensure there is a selection in the combo
---if either is false, then give a message and go back to the control involved.
---if both are true, then do a me.Requery
User then click the button
OR
Do as Alan says if you are not checking for specific values.
Sorry, I don't use macros. I was responding using vba.
Bob
Would you be so kind to have a look on my accdb file
Thanks