how to add path to destination folder

[arrojusrikanth]

in destination folder dialog when user clicks on change
how to add path to user selected folder
example if user selects F:\ drive.
i want to add path to it Grapple\Grapple1.0
then destination folder path becomes
F:\Grapple\Grapple1.0

[Darain]

If you always wanted to have "Grapple\Grapple1.0", can you add it to the INSTALLDIR field of Product Properties? Or does it not serving you correctly that way?

[arrojusrikanth]

in General information
the value of InstallDir is [ProgramFilesFolder]Grapple\Grapple1.0
when i click on change and choose another directory
suppose F:\
its giving F:\ not F:\Grapple\Grapple1.0