Bug 167545 Copy a cascading parameter group and paste it to another parameter group causes an exception thrown
Steps to reproduce: 1.Copy a cascading parameter group using short cut key "Ctrl+x"/"Ctrl+c", or choosing context menu "Cut"/"Copy"; 2.Paste it to another parameter group using short cut key "Ctrl+v", or choosing context menu "Paste"; Expected result: The source one is pasted in the destination. Actual result: An exception thrown org.eclipse.birt.report.model.api.command.ContentException: The Cascading Parameter Group("Source") is not allowed in the slot (parameters) of Parameter Group("Destination").
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DEUtil.java
DesignChoiceConstants.UNITS_IN ).getMeasure( );
		}
		else if ( DesignChoiceConstants.UNITS_PERCENTAGE.equals( units ) )
		{
			px = DimensionUtil.convertTo( measure * fontSize / 100,
					DesignChoiceConstants.UNITS_PT,
					DesignChoiceConstants.UNITS_IN ).getMeasure( );
		}
		
		else if ( "".equals( units ) ) 
		{
			units = SessionHandleAdapter.getInstance( )
					.getReportDesignHandle( )
					.getDefaultUnits( );
			px = DimensionUtil.convertTo( measure,
					units,
					DesignChoiceConstants.UNITS_IN ).getMeasure( );
		}
		else if ( units == null )
		{
			px = 0.0;
		}
		else
		{
			px = DimensionUtil.convertTo( measure,
					units,
					DesignChoiceConstants.UNITS_IN ).getMeasure( );
		}
		return MetricUtility.inchToPixel( px );
	}