Bug 176784 always-excluding-first and always-excluding-last in item properties pop up error[00]
Details: always-excluding-first and always-excluding-last in item properties pop up error Step: 1.New a report and add a label 2.Select the label and switch properties tab. 3.Select the section and set the page break as always-excluding-first or always-excluding-last. actual result: Pop up an error excepted result: If these selection are not supported, and please remove them. If these selection are supported, it can be set to the item.
UI/org.eclipse.birt.report.designer.ui.views/src/org/eclipse/birt/report/designer/internal/ui/views/attributes/widget/PropertyEditorFactory.java
catch ( PropertyValueException e )
			{
				
			}
			if ( handle.isEditable( o ) )
			{
				editor = new DimensionCellEditor( parent, values, SWT.READ_ONLY );
			}
			else
			{
				editor = new DimensionCellEditor( parent, values, SWT.NONE );
			}
			editor.setValue( value );
			if ( dimensionValue != null )
			{
				( (DimensionCellEditor) editor ).setUnits( dimensionValue.getUnits( ) );
			}
		}
		else if ( handle.isElementRefValue( o ) )
		{
			GroupPropertyHandle propertyHandle = (GroupPropertyHandle) o;
			List handles = propertyHandle.getReferenceableElementList( );
			values = new String[handles.size( )];
			for ( int i = 0; i < handles.size( ); i++ )
			{
				values[i] = ( (DesignElementHandle) handles.get( i ) ).getQualifiedName( );
			}
			ElementPropertyDefn propDefn = (ElementPropertyDefn) propertyHandle.getPropertyDefn( );
			ElementDefn elementDefn = (ElementDefn) propDefn.getTargetElementType( );
			assert elementDefn != null;