Below is an example of how to build a multi file upload Custom Control that uses a central attachment repository db for all the attachments. The application has very little code and utilizes the Repeat control and Panel control to generate an unlimited amount of uploads per XPage. (Actually, I am sure there is a limit but I have not hit it yet.) The step by step instructions are below. You can also download the example database(s) by clicking here: Below is an example of how to build a multi file