Pass data to deferred custom action

 

Property value is unavailable in session data during deferred custom action. So different method has to be used to pass data to deferred custom action. CustomActionData can do this.

 

DotNet20Path = session.CustomActionData["DotNet20Path"];

PublicKeyToken = session.CustomActionData["PublicToken"];

Culture = session.CustomActionData["Culture"];

NewVersion = session.CustomActionData["NewVersion"];

OldVersion = session.CustomActionData["OldVersion"];

 

In Wix project,

Value="DotNet20Path=[NFX20INSTALLROOTDIR];PublicToken=$(var.PublicKeyToken);Culture=neutral;OldVersion=1.0.0.0;NewVersion=$(var.Version)" />

 

  SourceFile="$(var.CAUpdateConfigFiles.TargetDir)$(var.CAUpdateConfigFiles.TargetName).CA.dll" />

 

                DllEntry="UpdateConfigFiles" Execute="deferred" />

 

Note, data in CustomActionData cannot be passed back to Wix main thread. If a new data is set to CustomActionData, this will cause installation failure.