Is the WriteFile call properly synchronous, and can I delete the file written immediately after the call?
Is the WriteFile call properly synchronous, and can I delete the file written immediately
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Is the WriteFile call properly synchronous, and can I delete the file written immediately after the call?
It is fully synchronous, as you can see by looking at the implementation of
HttpResponse.WriteFilewith Lutz Reflector. You can delete the file immediately after the call toResponse.WriteFile.You don’t have the guarantee that the response stream has been completely transmitted to the client, but calling
Response.Flushdoesn’t give you that guarantee either. So I don’t see a need to callResponse.Flushbefore deleting the file.Avoid loading the file into a
MemoryStream, it brings you no benefit, and has a cost in memory usage, especially for large files.