CODEWITHSUNDEEP
.net
Water Cooler v2
Water Cooler v2

Reputation: 33850

Are the appSettings cached by the .NET framework or are they read from the file everytime you access them?

I am looking inside the code inside System.Configuration.dll and it looks like the .NET framework reads the file every time you access ConfigurationManager.Whatever, for e.g. ConfigurationManager.AppSettings["foo"];

This worries me. This can't be. Please prove that I am wrong.

Upvotes: 0

Views: 179

Answers (1)

Andrew Morton
Andrew Morton

Reputation: 25013

You can do a simple test yourself. Show a value from the config file. Edit the config file while the program is still running. Show the value again - it is the same.

Also, you can use Process Monitor from Sysinternals to show file accesses - the config file is only accessed when the program starts.

(It is different for web.config in ASP.NET applications, where a change in web.config results in the application being restarted: When is the web.config file “executed”?.)

Upvotes: 2

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