c# - Mantaining state for a list of documents without storing them in the database or the file sistem -


hi have situation need upload multiple files fileupload controler , display them on page.

this may stupid question because have no experience in webforms ever , need able maintain files on page without storing them in database or on server until user presses post button.

my experience related more asp.net mvc , web api.

each time user uploads new file file get's displayed on page how functionality looks:

enter image description here

when use presses button should able have access files can store them in database , on filesistem.

because of way database designed can store file on database can keep track of until user writes in teaxtareaand posts data.

the thing comes mind storing files in session , collegue suggested should store filename in session , store file content in bytes somewhere else.

i tought of actualy getting path of file , store along side filename in session looking @ fileupload object not seem have access filepath.

my last ideea store file contet in hidden input while debugging realized each time upload new file page_load get's runed , litle know webforms means page refresh making loose hidden input's along there data.

can suggesst solution problem?

i not store files in session. storing files in temporary folder guid (since want them unique) name , storing names in session idea. if want keep original file names can append guid file name. need remember delete files temp folder once you're done, , perhaps (for added safety) run scheduled task deletes unneeded files temp folder.


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