Bug 122365 In data set dialog, add parameter first then edit query, parameter value will be cleared out.
Description: In data set dialog, add parameter first then edit query, parameter value will be cleared out. Steps to reproduce: 1. Add a data set. 2. In data set dialog, add a parameter. 3. Edit query and use this parameter. 4. Preview in data set dialog, it works. 5. Change to "parameter" page, its value is cleared out.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/PropertyHandleTableViewer.java
}
    }
    
    public TableViewer getViewer()
    {
        return viewer;
    }
    
    public Composite getControl()
    {
        return mainControl;
    }
    
    public Button getUpButton()
    {
        return btnUp;
    }
    
    public Button getDownButton()
    {
        return btnDown;
    }
    
    public Button getRemoveButton()
    {
        return btnRemove;
    }
    
    public MenuItem getRemoveMenuItem()
    {