Dynamically reading app.settings in asp.net

Question

I've moved my appsettings section outside of the web.config using:

   <appSettings configSource="AppSettings.config"/>

This allows me to change my appsettings without actually restarting IIS.

I know however, that IIS monitors all configuration files constantly. How can I attach to event my-appsetting-has-changed to take some custom action upon that?

kbrimington · Accepted Answer · 2010-08-09 16:31:48Z

1

According to this reference and this reference,

[The] ASP.Net runtime does not detect when the external [config] file changes.

If that's true, then you might get some mileage out of the FileSystemWatcher, but I cannot think how to use that effectively in an ASP.NET scenario.

I hope this helps.

answered Aug 9, 2010 at 16:31

kbrimington

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3 Comments

citronas Over a year ago

Write a windows service for the FileSystemWatcher. Using a FileSystemWatcher in ASP.net only shows that you do not understand what the lifecycle in ASP.net is like

kbrimington Over a year ago

Thanks, @citronas. That was, I had intended at least, my point about not being able to use it effectively in an ASP.NET scenario.

kbrimington Over a year ago

As not every ASP.NET hosting scenario makes installing a windows service an option, I hadn't recommended it.

Mark Cidade · Accepted Answer · 2010-08-09 16:32:22Z

1

You can use the FileSystemWatcher class for this.

answered Aug 9, 2010 at 16:32

Mark Cidade

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