BAyyanar.20190225200532 asked a question.
Hi,
in an install script project, how can we let the installer to install earlier version than installed version (a) how to make an installer to downgrade? I am stuck with a pop-up saying "This setup installs an earlier version"
Thanks,.
Hi @balaji_ayyanar ,
You can achieve setup downgrade by commenting/removing below lines of code from OnUpdateUIBefore event:The specific event you can find under:
Behavior and Logic->InstallScript->Setup.rul->Before Move Data->OnUpdateUIBefore
// Check whether the update is older than the currently installed version.//if( nResult = VERSION_COMPARE_RESULT_OLDER ) then
//szMsg = SdLoadString( IDS_IFX_ERROR_UPDATE_NOT_APPROPRIATE );
//SdSubstituteProductInfo( szMsg );
//MessageBox( szMsg, SEVERE );
//abort;
//endif;
Hope it helps,
Thanks,
Jenifer
Hi @balaji_ayyanar ,
When you click on Setup.Rul,you will be able to see two combo-boxes where you can select methods in the editor window.
if( nResult = VERSION_COMPARE_RESULT_OLDER ) then
szMsg = SdLoadString( IDS_IFX_ERROR_UPDATE_NOT_APPROPRIATE );
SdSubstituteProductInfo( szMsg );
MessageBox( szMsg, SEVERE );
abort;
endif;//
Then try out,it will work.I had verified this been working.
Thanks,
Jenifer
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Hi @balaji_ayyanar ,
When you click on Setup.Rul,you will be able to see two combo-boxes where you can select methods in the editor window.
if( nResult = VERSION_COMPARE_RESULT_OLDER ) then
szMsg = SdLoadString( IDS_IFX_ERROR_UPDATE_NOT_APPROPRIATE );
SdSubstituteProductInfo( szMsg );
MessageBox( szMsg, SEVERE );
abort;
endif;//Then try out,it will work.I had verified this been working.
Thanks,
Jenifer