Cascading drop downs in form control

[ehardway123]

Hello,

I am having some trouble with cascading two tier drop down. I cannot seem to find out how to do it. I am trying to create a two tier cascading drop down in form control. I want the first drop down to be Products we have and the second one to be customers. I also want to be able to create a bar chart from these drop downs where after we choose our customer by product, it shows the revenue we have recieved from the customer by months. Is there a way to do this? I figured out how to do this with just one combo box, but I am unable to do a cascading one.

If you can help in anyway, I would be greatly appreciated.

Thanks,

Erica