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c# - Do you need to call Flush() on a stream or writer if you are using the “using” statement?

I am not sure whether I need to call Flush() on the used objects if I write something like this:

using (FileStream...)
using (CryptoStream...)
using (BinaryWriter...)
{
    // do something
}

Are they always automatically flushed? When does the using statement flush them and when it doesn’t (if that can happen)?

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As soon as you leave the using block’s scope, the stream is closed and disposed. The Close() calls the Flush(), so you should not need to call it manually.


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