I have 2 tables. the one is parent and the other is child. e.g. 1 customer has many orders. so there is a customers foreign key in orders table. So I want to make a form to show these and add many orders in Customer. So in the Customers form I put all the customers fields and a button to go to the orders form with a given link to customers ID foreign key. with the orders ID in a combobox within a datasheet so that I can add multiple orders. The datasheet and combobox is showing properly, but I cannot select and add or edit in the combobox. Can we fix this?