[TYPO3-project-seminars] Sorting listview first by title and as second sorting field by date

[Joachim Müller]

Hi,

I would like to sort my listview first by title and within the same title 
the second sorting field should be the date field.
Sorting by one field with e.g. TS Setup 
plugin.tx_seminars_pi1.listView.orderBy = title works fine. I tried to set 
this to plugin.tx_seminars_pi1.listView.orderBy = title,date (as the 
SQL-String is Oder By field1, field2, field3...) but then I get a 
configuration check warning.

Is there any other possibility to get this done. I don't want to change the 
source-code itself (if it's not absolutely necessary)

Thanks for a hint.

Joachim Müller