Not trying to be unhelpful, or sarcastic, but perhaps you should rephrase the question. The post was how to populate a combobox. Apparently you know how to do that, since you wrote that you ARE populating it. Sort of feel I wasted my time with the previous post.
If I undestand correctly, the REAL question is how do you update a database? The fact that it is information from a combobox, or a textbox, is irrelevant. You update records the same way you would update the records taking information froma spreadsheet cell, or text from a paragraph in a document. It is information.
You have a logical problem here. You say you are populating the combobox FROM the database records. OK. Good. You then ask
how to write any new data from the combobox into the database.
A textbox can get new data. Please explain how you can get new data from a combobox? It is true, you could have other code that
changes the combobox items - that would give new data. However, you do not state this. A combobox has a list. The user selects from that list. The list remains the same, it does not change. What new data?
Could you check your post? It also seems that the code posted for the Change event is in fact the populating code itself, as it builds an array from the recordset, then makes the list in the combobox that list.
Gerry