I've created a video gallery where all the content is being pulled from the database of course. I've also created a form where the user can edit the contents such as, the video title, category, the thumbnail, and video.

The problem is... if the thumbnail or video hasn't been uploaded, then those 2 pieces will not display. Leaving only the video title and category to show.

SO is it possible to upload while updating a form? If so, can you point me to a tutorial or a discussion that you know of?