How to populate a second dropdownlist using the value chosen in the first dropdownlist

Hi,

I have a problem with 2 drop down list.  I dont' think I can use AJAX cascading drop-down-list because the two drop-down-list in my page do not have parent/child relationship.

Here's what I need to accomplish:

1.  First drop-down-list contains a list of Customer Code.  I can get this list using ObjectDataSource.

2.  After a Customer Code being chosen in the first field, can I pass that value to the second ObjectDataSource so it can use that value in a complex query to get the Customer Order?  

Is there any other way to accomplish this?

Thanks in advance!

QBui 
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