Dash upload component to select the files from a specific directory inside the application folder or any local path

When i create a Dash upload component, the user will be able to select any of the local files from his system using the file browse window. Is there any way by which we can restrict the user to select only files from a specified directory inside the application folder? I am aware that this is possible with the dropdown component. But the drawback of this way is that only the file names will be visible in the dropdown. I want a file browse window for the upload component that is restricted to a specific folder in my application directory.