My MSI updates the app.config file using <util:XmlFile>. Something like
this,
<util:XmlFile File="[INSTALLLOCATION]App.config"
Id="ABC"
ElementPath="/configuration/HandleConfig/@name"
Value="[ABC]"
Action="setValue"/>
I want to add an existence check for the node/attribute, if it exists,
update the value, else forget it!
The Wix file compiles fine which is expected, but during deployment Wix
complains "Failure to find node: /configuration/HandleConfig/@name"
How can I add a check before updating values?
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