Normal UpdatePanel behaviour? ASP.NET
Am I doing this correctly?

I have two dropdowns. The first is populated on form load, and it is a trigger for an updatepanel that contains the 2nd dropdown.

When I change the value in the first dropdown box, it triggers the 2nd one's updatepanel, which populates it.

However, when I select a value in the 2nd dropdownbox, it triggers itself and repopulates... so if I select the 2nd or 3rd item in the dropdown, it repopulates and selects the first item again.

Am I doing something wrong, or is this normal?  Should I put the first dropdown into an updatepanel instead and have it trigger itself, and in its own trigger, populate the 2nd listbox?
Normal UpdatePanel behaviour? ASP.NET
===

Am I doing this correctly?

I have two dropdowns. The first is populated on form load, and it is a trigger for an updatepanel that contains the 2nd dropdown.

When I change the value in the first dropdown box, it triggers the 2nd one's updatepanel, which populates it.

However, when I select a value in the 2nd dropdownbox, it triggers itself and repopulates... so if I select the 2nd or 3rd item in the dropdown, it repopulates and selects the first item again.

Am I doing something wrong, or is this normal?  Should I put the first dropdown into an updatepanel instead and have it trigger itself, and in its own trigger, populate the 2nd listbox?