Create virtual folders using database

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C#

ASP.NET

I have a module in which user can create folders and also can modify them (similar to webfile manager)... I have the code which creates folders directly on a harddrive and in filemanager on webpage it displays directly from hard drive by binding root directory... Not i want to do this all tasks from the database i.e. when user creates a folder it creates in data table not really in hard drive(if it creats on harddrive than also not a problem but each and every folders and uploaded files records should be stored in database also)... and user shold show them as a folders structure in treeview... Can any one help me out...?????
Sorry for long desc... Thank you...