BreadCrumb 

A BreadCrumb displays the current page in the context of a navigation path. You can, for example, display a history of the pages last visited or the structure of the information provided. A BreadCrumb consists of individual links, or in its entirety represents one link.

You can insert two different types of BreadCrumb steps into one BreadCrumb.

·        BreadCrumbStep

·        MultipleBreadCrumbStep

BreadCrumbSteps are bound to individual context attributes. In this way, the number of displayed steps is defined during runtime. In comparison, a MultipleBreadcrumbStep is bound to a context node. This allows the number of displayed steps to be dynamically adjusted at runtime.

Example of the Display

 

When the template is being designed the tool tip property is checked to guarantee Accessibilty.

 

Runtime Class

CL_WD_BREAD_CRUMB

 

Properties in the View Designer

Name	Type	Initial Value	Bindable
ID	STRING	(automatic)	no
behaviour	WDUI_BREAD_CRUMB_BEHAVIOR	multipleLinks	ja
enabled	WDY_BOOLEAN	true	ja
separatorImageSource	STRING		ja
separatorText	Text	>	ja
tooltip	Text		ja
visible	WDUI_VISIBILITY	visible	ja

 

Aggregations in the View Designer

Name	Cardinality	Type
Step	0..n	BreadCrumbStep

 

Events in the View Designer

Name

onSelect

Further properties that can be inherited are defined in the associated higher-level class.  The associated interface elements are:

·         UIElement

·         ViewElement

 

Dynamic Programming

For dynamic programming the same properties, events, and aggregations are provide in the View Designer. Bear in mind the different spellings.

Dynamic Programming of Properties

View Designer Name	Runtime Name	Type
behaviour	BEHAVIOUR	WDUI_BREAD_CRUMB_BEHAVIOR
behaviour: multipleLinks	CL_WD_BREAD_CRUMB=>E_BEHAVIOUR-MULTIPLE_LINKS
behaviour: singleLink	CL_WD_BREAD_CRUMB=>E_BEHAVIOUR-SINGLE_LINK
enabled	ENABLED	WDY_BOOLEAN
separatorImageSource	SEPARATOR_IMAGE_SOURCE	STRING
separatorText	SEPARATOR_TEXT	WDY_MD_TRANSLATABLE_TEXT
tooltip	TOOLTIP	WDY_MD_TRANSLATABLE_TEXT
visible	VISIBLE	WDUI_VISIBILITY
visible: none	CL_WD_BREAD_CRUMB=>E_VISIBLE-NONE
visible: visible	CL_WD_BREAD_CRUMB=>E_VISIBLE-VISIBLE

 

Dynamic Programming of Events

View Designer Name	Runtime Name
onSelect	ON_SELECT

 

Dynamic Programming of Aggregations

View Designer Name	Runtime Name	cardinality
Step	STEPS	0..n

Example

You can find examples of this interface element in the system in the Web Dynpro application WDR_TEST_UI_ELEMENTS, and in the component WDR_TEST_EVENTS in the View BreadCrumb.