Tutorial :Will a child application inherit from its parent web.config?



Question:

I setup a IIS application from within an existing application.

Will the parents web.config be inherited or is that something I have to set explicitly?


Solution:1

Yes it will without setting anything explicitly, and I don't know any way to prevent it.

However many configuration sections will allow you to clear data inherited from parent files.

E.g.

<appSettings>     <clear/>     <add key=...>  </appSettings>    <connectionStrings>     <clear/>     <add ... />  </connectionStrings>  


Solution:2

You can also use the remove tag to get rid of things you don't want or put everything in a location and tell it not to inherit:

<remove name="FooBar" />    <location path="." inheritInChildApplications="false">      <system.web>          ...      </system.web>  </location>  


Solution:3

The child inherits the parent's web.config file.

Also, when a new web.config file is created in the child, the child's web.config file settings override the same settings in the parent's web.config file.


Solution:4

What you do is change the parent .NET 4 app's web.config to indicate its settings shouldn't flow down to the children

<location path="." inheritInChildApplications="false">     <system.web>      ...your system.web stuff goes here     </system.web>  </location>  

For more details refer here http://www.hanselman.com/blog/ChangingASPNETWebconfigInheritanceWhenMixingVersionsOfChildApplications.aspx


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