BCGControlBar Pro for MFC
virtual BOOL CBCGPGridCtrl::CanShowColumnInColumnChooser ( int  nColumn) const

Tells whether a column can be displayed on the Column Chooser.

nColumnSpecifies the zero-based index of column.
TRUE if we can show column in column chooser, FALSE if not.

Override this function to hide some columns in a Column Chooser pane.

By default this method returns TRUE.