File.ReadAllText prevent write access for other processes

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Marthin Freij - 10 Oct 2007 12:44 GMT

Hi,

I have noticed that File.ReadAllText prevents other processes from writing
to the file while reading. It seems like the FileShare enum is set to Read
rather than ReadWrite. This is a bug in my opinion.

/m

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Vadym Stetsiak - 10 Oct 2007 13:23 GMT

Hello, Marthin!

I do not think that its a bug. When you're reading from file you do not want
anybody to mess something in it, right?
That is if I'm reading _whole_ file I have to be shure that nothing will
change in it.

However, there may be scenarios when simultaneous read and write to the file
are permitted. When you have such scenario you'll have to use FileStream.
--
With best regards, Vadym Stetsiak.
Blog: http://vadmyst.blogspot.com

You wrote on Wed, 10 Oct 2007 04:44:01 -0700:

MF> Hi,

MF> I have noticed that File.ReadAllText prevents other processes from
MF> writing to the file while reading. It seems like the FileShare enum
MF> is set to Read rather than ReadWrite. This is a bug in my opinion.

MF> /m

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Peter Duniho - 10 Oct 2007 18:23 GMT

> I have noticed that File.ReadAllText prevents other processes from writing
> to the file while reading. It seems like the FileShare enum is set to Read
> rather than ReadWrite. This is a bug in my opinion.

It's not a bug. It's by design.

If you want to have more control over the file access modes, don't use
the File class. It is intended only for the basic scenarios.

Pete

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File.ReadAllText prevent write access for other processes

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