Bug 136270 Group's data binding column can only be used by the group itself
If you add some data binding columns to a group, these columns can only be used by this group itself. It should has a way to make the child can use the parent group's data binding column.
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DEUtil.java
Action action ) throws SemanticException
	{
		ActionHandle actionHandle = null;
		if ( element instanceof LabelHandle )
		{
			actionHandle = ( (LabelHandle) element ).setAction( action );
		}
		else if ( element instanceof DataItemHandle )
		{
			actionHandle = ( (DataItemHandle) element ).setAction( action );
		}
		else if ( element instanceof ImageHandle )
		{
			actionHandle = ( (ImageHandle) element ).setAction( action );
		}
		return actionHandle;
	}
	private static Object getModelFontSize( DesignElementHandle handle )
	{
		
		
		
		StyleHandle styleHandle = handle.getPrivateStyle( );
		Object fontSizeValue = null;
		if ( styleHandle != null )
		{
			fontSizeValue = handle.getPrivateStyle( ).getFontSize( ).getValue( );
		}
		return fontSizeValue;
	}