Best Practice For Temporarily Storing Images Until Their Database Entity Is Created?

Mar 21, 2011

I'm working in ASP.NET 4.0, and I've got a large web form which represents a single business entity. A user can upload multiple images associated with the entity. The entity is created and assigned a GUID upon submitting the form. The files will be stored to a file system.

The problem is that we have to name the files after the GUID that is assigned to the entity after it is inserted to the database. So before the submit button is clicked, we will have several image files floating around in limbo.

There are obvious answers to this question -- you save the images to the file system and then when the business entity is created, you rename those files. However, I believe that there must be very strong patterns and several key details that would make for a very robust system. What's best practice for this scenario?

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