FileStream with DeleteOnClose File option

Question

In my project I have to create some temp files in an USB device, which I want to delete on Closing. So I used a code like

this.fcommandHandler = new FileStream(T         


        

Answer 1

You need to use | instead of &.

These are binary flags, and when you say &, you effectively mask them all away, resulting in no options at all.

Answer 2

Try including the WriteThrough flag as well in a list using the | operator. See this KB on the requirements for using FILE_FLAG_NO_BUFFERING. Its interesting that MS hasn't included this flag in the enum. Is there a reason why WriteThrough doesn't do what you need in this scenario? You are trying to write secure data?

Answer 3

Use FileOptions.DeleteOnClose | FILE_FLAG_NO_BUFFERING the & cancels them out.

FILE_FLAG_NO_BUFFERING & FileOptions.DeleteOnClose returns FileOptions.None