This document discusses using the ALV (Advanced List Viewer) component in Web Dynpro applications. The ALV is a display component that offers similar functionality to the common ALV in ABAP, including sorting, filtering, aggregation, and editing of data. It is realized as a Web Dynpro component rather than a UI element. The ALV component provides an interface for applications to modify its configuration model to enhance its generic functions with application-specific logic. Key aspects covered include binding application data to the ALV, customizing the ALV's configuration settings, and manipulating it from the application.

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ALV for
Web Dynpro

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© SAP AG 2005, ABAP Web Dynpro
ALV integration in Web Dynpro
ALV Configuration Model
Contents:
ALV for Web Dynpro

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© SAP AG 2005, ABAP Web Dynpro
After completing this lesson, you will be able to:
Describe the ALV usage in Web Dynpro
Use the ALV in Web Dynpro
ALV for Web Dynpro: Objectives

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© SAP AG 2005, ABAP Web Dynpro
ALV in NetWeaver 2004s
ALV in Web Dynpro
Provide a more advanced
display component
compared to Table UI
element
Offer same functionality
as common ALV in ABAP
ALV realized as WD
Component not as UI
element
More complex interface
Included via Component
Usage
Data binding by reverse
context mapping
ALV Pattern Component
Web Dynpro ALV Component
Web Dynpro
UI elements

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© SAP AG 2005, ABAP Web Dynpro
ALV in NetWeaver 04s
Web Dynpro ABAP based UI component
Provide an optional list-header and list-footer area for
displaying additional information
Offer a set of generic functions
Choose columns which you want to display out of a set of columns
Interactive sorting by simple header click or by choosing multiple criteria
Interactive filtering by entering a filter-string in the edit field above the
column
Aggregation on multiple key figures (total, min, max, average, count)
Sub-aggregation if group-level (defined by sort criteria) changes
Editability
Persistence of configurations (layouts)
Export to PDF
Offer interface to application to enhance set of generic
functions with application specific functions

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Not in Scope for Paris
Deal with more complex filter criteria (e.g. regular expressions)
Semantics of exceptions
Offer Export functionality to spreadsheets like Excel
Switch view to Graphics or Formatted Report
Hierarchical lead column
PopIns in the table
Broadcasting of results (e.g. mail, cRoom, …)

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© SAP AG 2005, ABAP Web Dynpro
WD ALV and Table Node
Application ALV
Local
ITAB
Context
Node
Context
Node
reverse context mapping
bind_table() ITAB' = get_static_attributes_table()
invalidate()
bind_table(ITAB')
Most common application scenario:
Application has its data available as an internal table and would like
to display the data in an ALV as efficient as possible

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© SAP AG 2005, ABAP Web Dynpro
Overview ALV Configuration Model
ALV is steered by Configuration Model, which is kind of handle to
manipulate look, feel and behavior of ALV
Hierarchical class structure
CL_SALV_WD_CONFIG_TABLE
ALV creates a default configuration model at initialization
Application can modify configuration model at 2 points of time
WDDOINIT everything can be changed
WDDOMODIFY meaningful subset can be changed
ALV refresh method need to be called
ALV Config Model
Table Settings (# rows,…)
Field Settings (filter, …)
Column Settings (vis cols…)
Function Settings

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© SAP AG 2005, ABAP Web Dynpro
You should now be able to:
Describe the ALV usage in Web dynpro
Use the ALV in Web Dynpro
ALV for Web Dynpro: Summary