Access single file across 2 application

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I have a requirement wherein i have to read/write a single xml file across 2 application, one of which is a windows form application and others an windows service. Is there any best approach or a design pattern defined to achieve this, which will make sure there is no deadlock when both apps try to access this file. On the windows service side, I thought of making use of event driven mechanism based upon the "last updated time" info of the file.

Posted 20-Oct-14 21:23pm

SaiprasadVer

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Solution 2

It's a bad idea to have multiple programs write to the same file at the same time.

If you are only reading then you can :

1) Read the entire file to memory first then process (if it is small enough) with File.ReadAllText()
2) Open the file in shared read mode : http://msdn.microsoft.com/en-us/library/y973b725%28v=vs.110%29.aspx[^]

To detect file changes use the FileSystemWatcher : FileSystemWatcher - Pure Chaos (Part 1 of 2)[^]

Posted 20-Oct-14 21:38pm

Mehdi Gholam

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

*Suvabrata Roy* · Accepted Answer · 2014-10-20T21:37:00

Solution 1

You can try this : http://msdn.microsoft.com/en-us/library/ee617386(v=sql.110).aspx[^]

Another Way...

http://blog.markedup.com/2014/07/easy-mode-synchronizing-multiple-processes-with-file-locks/[^]

Posted 20-Oct-14 21:37pm

Suvabrata Roy

Updated 20-Oct-14 21:38pm

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Access single file across 2 application

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Access single file across 2 application

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