Transformations¶
A basic app config may look like:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
<add key="foo" value="my foo" />
<add key="bar" value="my bar" />
</appSettings>
<connectionStrings>
<add name="test" providerName="my provider" connectionString="my connection string"/>
</connectionStrings>
</configuration>
A Transformation config may look like:
<?xml version="1.0" encoding="utf-8" ?>
<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
<appSettings>
<add key="foo" value="transformed" xdt:Transform="Replace"/>
<add key="Environment" value="Dev" xdt:Transform="Insert "/>
</appSettings>
</configuration>
After running the transform from either the automatic build task, at runtime or with the .NET CLI Tool the resulting app.config will look like:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
<add key="foo" value="transformed" />
<add key="bar" value="my bar" />
<add key="Environment" value="Dev" />
</appSettings>
<connectionStrings>
<add name="test" providerName="my provider" connectionString="my connection string"/>
</connectionStrings>
</configuration>
While the XDT namespace allows you to radically change your app.config. In most cases however you will only need to focus on the xdt:Transform attribute.
- Replace
- Insert
- InsertBefore(XPath expression)
- InsertAfter(XPath expression)
- Remove
- Remove All