How can you use PowerShell's . (dot) notation to walk through elements with periods in the element name?

$webAppXml.configuration.'system.web'

This works too:

e.g.

$webAppXml.configuration.["system.web"].Identity

Alternatively, you can use variables:

$subproperty = 'System.Web'
$webAppXml.configuration.$subproperty

I find this to be the most useful technique, because it lets me switch properties easily.

BTW, you can use the same trick to get to a method definition, and not run it.

Hope this Helps

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