Im trying to fill several combo boxes in my application from a Database. So say if i have CustomerNum, CustName, CustAdd etc that if i select a certain CustNum that it will only bring up valid CustName and Address for that. My proble that im having is if i select multiple CustNum, im gettinup all the details but only want whats common between the items i select i.e an address etc can u help me with this?

What Database/Toolset/language are you using?