I'm trying to add different text to an installer when in an upgrade scenario.
I'm setting 3 properties based on the version detected:
<Property Id="OLDERVERSIONFOUND" Secure="yes" />
<Property Id="NEWERVERSIONFOUND" Secure="yes" />
<Property Id="SAMEVERSIONFOUND" Secure="yes" />
My approach was to copy the welcome dialog and try to provide a different
description if an upgrade is detected. I'm trying to do something like this:
<Control Id="Description" Type="Text" X="135" Y="80" Width="220"
Height="60" Transparent="yes" NoPrefix="yes"
Text="!(loc.WelcomeDlgDescription)" >
<Condition Action="show">no versions found</Condition>
</Control>
<Control Id="UpgradeDescription" Type="Text" X="135" Y="80" Width="220"
Height="60" Transparent="yes" NoPrefix="yes"
Text="!(loc.WelcomeDlgUpgradeDescription)" >
<Condition Action="show">same or older version found</Condition>
</Control>
I have tried many different things here, but I'm having trouble with the logic
in trying to detect when to show and hide the controls. In the case of a fresh
install none of the properties will be defined. In the case of an upgrade
OLDERVERSIONFOUND or SAMEVERSIONFOUND could be defined.
I'm wondering if anyone has any suggestions on how to approach this or if there
is a better way?
Thanks,
Rob.
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