How to create File with the FILE_ATTRIBUTE_TEMPORARY in C#? (So to store Data in Ram but be able to use it as normal file)
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3 Answers
I believe you'll have to use P/Invoke to call the native CreateFile then use the FileStream(SafeFileHandle, FileAccess) constructor on FileStream. MSDN has a sample for how to use SafeFileHandle and CreateFile together.
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Secko
Thanks for pointing out my (C++ to C#) error within answering the question! :)
Memory mapped files are an alternative, and are built into C# 4.0:
http://msdn.microsoft.com/en-us/library/system.io.memorymappedfiles.memorymappedfile.aspx
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Using P/Invoke is too complex. Here is a simple way to create such temporary file:
var file = File.Create(path); File.SetAttributes(path, File.GetAttributes(path) | FileAttributes.Temporary); 