Update configSource of XML element in web.config using Powershell by passing in Parameters

Question

I am trying to figure out a way to update my web.config for different environments by updating the configSource for the appSettings element in the web.config.

Here

Answer 1

Im looking for a way to modify the code as well.

Here is a way you can view whats the node:

$path = 'c:\site\web.config'
$PublishState = (Select-Xml -Path $path -XPath "configuration/appSettings/add[@key='PublishState']/@value").Node.'#text'
$PublishState