That's why I included a screenshot of my page, so you can see that one record was selected prior me clicking "Delete" button.
I have also tried changing "Section Column Type" under "Grid Appearance" to "SingleRowSelector" and to "MultiRowSelector", then after selecting a checkbox and clicking "Delete" button was getting the same error.
Delete functionality with qListView doesn't work at all no matter what I try.
So any suggestions to work around it will be appreciated.
Thanks a lot,