RaiBar

I am using NextDBGrid together with a DBNavigator in my project.
The first two columns in the grid are CheckboxColumns.
If I click on edit in the DBNavigator, the grid switches into edit mode, as it should.
But when I click on one of the CheckboxColumns, the DBNavigator goes back to non edit mode.
The same happens when inserting a new row.
When changing a CheckBoxcolumn, the DBNavigator should stay in edit mode.

Can you please have a look at this?