4 Combo Boxes

[SAMI2]

Hi
I want to create 4 Combo Boxes,
First for Grade Classes
Second for Subject
Third for Topics
forth for Exam No.

when I select first Grade Class I want show all subject for First Grade in Second ComboBoxe etc.

I tried many times to active third ComboBox for topic and forth ComboBox for exam but no avail, please I need your help.

this attach you will see my attempt.

[missinglinq]

The concept you're describing is called "Cascading comboboxes." Here's a link to a tutorial by our very own Rabbit:

http://bytes.com/forum/thread605958.html

BTW, your attachment apprently didn't get attached!

Welcome to Bytes!

Linq ;0)>

[SAMI2]

Hi

Please check ComboBox No. 3 "ComboTopic "

When select grade and subject then topic that is ok but next time for topic not ok.

The attachment in this link:

http://www.dbforums.com/showthread.php?p=6362701#post6362701

Thanks

[SAMI2]

Hi

I need your help.