src/main/java/org/efaps/ui/wicket/models/objects/UIStructurBrowser.java
public void checkHideColumn4Row()
    {
        setExecutionStatus(UIStructurBrowser.ExecutionStatus.CHECKHIDECOLUMN4ROW);
        try {
            getObject4Event().executeEvents(EventType.UI_TABLE_EVALUATE,
                            ParameterValues.INSTANCE, getInstance(),
                            ParameterValues.CLASS, this);
        } catch (final EFapsException e) {
            throw new RestartResponseException(new ErrorPage(e));
        }
    }
public void checkHideColumn4Row()
    {
        setExecutionStatus(UIStructurBrowser.ExecutionStatus.CHECKHIDECOLUMN4ROW);
        try {
            getObject4Event().executeEvents(EventType.UI_TABLE_EVALUATE,
                            ParameterValues.INSTANCE, getInstance(),
                            ParameterValues.CLASS, this);
        } catch (final EFapsException e) {
            throw new RestartResponseException(new ErrorPage(e));
        }
    }
Method is called from the StructurBrowser in edit mode before rendering
the columns for row to be able to hide the columns for different rows by
setting the cell model to hide.