Hi,
It seems there is the bug in:
AbtContainerDetailsView>>selectColumn: aColumn
widget == nil
ifTrue: [(self columns includes: aColumn)
ifTrue: [(self selectedColumns includes: aColumn)
ifFalse: [self selectedColumns: (self selectedColumns add: aColumn)]]]
ifFalse: [widget selectColumn: aColumn tableColumn].
After executing this method 'selectedColumns' may contain 'aColumn' instead a collection.
I think it should be
AbtContainerDetailsView>>selectColumn: aColumn
widget == nil
ifTrue: [(self columns includes: aColumn)
ifTrue: [(self selectedColumns includes: aColumn)
ifFalse: [self selectedColumns: (self selectedColumns add: aColumn;
yourself)]]]
ifFalse: [widget selectColumn: aColumn tableColumn].
Maxim