sap BC412_ABAP_Dialog_Programming_Using_Enjoy_SAP_Control

BC412

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sap BC412 ABAP_Dialog_Programming_Using_Enjoy_SAP_Control Doc 文件

BC412 ABAP Dialog Programming Using

EnjoySAP Controls

BC412

R/3 System Release 46B 24.06.2002

BC412 ABAP Dialog Programming Using EnjoySAP Controls................................................................................1

Copyright.................................................................................................................................................................2

ABAP Workbench...............................................................................................................................................3

Course Prerequisites............................................................................................................................................4

Target Group.......................................................................................................................................................5

Course Overview.....................................................................................................................................................1

Course Goal.........................................................................................................................................................2

Course Objectives...............................................................................................................................................3

Course Content....................................................................................................................................................4

Overview Diagram - Course Overview...............................................................................................................5

Style Conventions used in this Handbook...........................................................................................................6

Introduction to the Control Framework..................................................................................................................1

Introduction to the Control Framework: Unit Objectives...................................................................................2

Overview Diagram - BC412...............................................................................................................................3

Introduction to the Control Framework:Overview..............................................................................................4

Control Framework (CFW) - General Architecture............................................................................................5

CFW Architecture in Detail................................................................................................................................6

SAP's GUI Strategy for R/3................................................................................................................................7

Custom Controls and ABAP Objects..................................................................................................................8

Custom Controls: Automation Queue.................................................................................................................9

Custom Controls: Events...................................................................................................................................10

Control Framework: Class Hierarchy...............................................................................................................11

Introduction to the Control Framework:Controls and Screens.........................................................................12

Relationship Between Controls and Screens.....................................................................................................13

Screen Element Custom Control: Use...............................................................................................................14

Creating a Custom Control Area.......................................................................................................................15

Creating a Container Control: Proces Flow......................................................................................................16

Creating a Container Control Instance..............................................................................................................17

Syntax: Declaring Reference Variables............................................................................................................18

Information in the Class Builder.......................................................................................................................19

Syntax: Creating an Instance (With a Constructor)..........................................................................................20

Using a Flag Variable........................................................................................................................................21

Creating an EnjoySAP Control Instance: Proces Flow.....................................................................................22

Creating an Instance of the SAP Picture Control..............................................................................................23

Creating an Instance of the SAP HTML Viewer..............................................................................................24

Result: Screen, Container, and EnjoySAP Control...........................................................................................25

Introduction to the Control Framework:SAP Picture Control and SAP HTML Viewer..................................26

URL: Pointer to Data.........................................................................................................................................27

URLs for External Data Sources.......................................................................................................................28

SAP Controls: Accessing External Data by URL.............................................................................................29

SAP Controls: Accessing Internal Data by URL..............................................................................................30

SAP Picture Control: Features..........................................................................................................................31

SAP Picture Control: DISPLAY_MODE.........................................................................................................32

SAP HTML Viewer: Features...........................................................................................................................33

Introduction to the Control Framework:Changing the Attributes of a Control.................................................34

Displaying Data: Proces Flow...........................................................................................................................35

Displaying a Picture in the Picture Control.......................................................................................................36

Syntax: Calling Instance Methods.....................................................................................................................37

Syntax: Reading Instance Attributes.................................................................................................................38

Method Calls and the Automation Queue.........................................................................................................39

Sending the Automation Queue to the GUI: End of PBO.................................................................................40

Dependent Method Calls...................................................................................................................................41

Solution: Explicit Flush.....................................................................................................................................42

Automation Queue: Using the ABAP Debugger..............................................................................................43

Automation Queue: Using the Automation Trace.............................................................................................44

Destroying Control Instances............................................................................................................................45

Overview: Control Events Overview................................................................................................................46

Recap: Control Events.......................................................................................................................................47

Control Events: General Overview...................................................................................................................48

Overview: Control Events - ABAP Objects Events..........................................................................................49

Control Events: Overview.................................................................................................................................50

Overview: ABAP Objects Events.....................................................................................................................51

Events of ABAP Objects Instances...................................................................................................................52

Events of the SAP Picture Control....................................................................................................................53

Events of the SAP HTML Viewer....................................................................................................................54

ABAP Objects: Creating Handler Methods......................................................................................................55

Creating an Event Handler Method:Static Methods.........................................................................................56

Syntax: Local Classes........................................................................................................................................57

Syntax: Methods of Local Classes....................................................................................................................58

Syntax: Handler Method for an Event...............................................................................................................59

ABAP Objects: Registering Handler Methods..................................................................................................60

Linking an Event to a Handler Method.............................................................................................................61

Syntax: Linking an Event to a Static Handler Method......................................................................................62

Syntax: Linking an Event to an Instance Handler Method...............................................................................63

Overview: Control Events - Control Events and the Control Framework........................................................64

Control Events: Overview.................................................................................................................................65

Control Events: Automation Control as Filter..................................................................................................66

Control Events: Configuring the Control Framework.......................................................................................67

SAP Picture Control Events: Event IDs............................................................................................................68

SAP HTML Viewer Events: Event IDs............................................................................................................69

Registering Control Events with the CFW........................................................................................................70

Overview: Control Events - Event Types.........................................................................................................71

Event Type: System Event................................................................................................................................72

Event Type: Application Event.........................................................................................................................73

Registering Application Events.........................................................................................................................74

Screen and Control:Call Sequence for Application Events..............................................................................75

Application Events and Screen Input Checks (1)..............................................................................................76

Application Events and Screen Input Checks (2)..............................................................................................77

System Event and set_new_ok_code................................................................................................................78

Introduction to the Control Framework:Controls and Program Modularization..............................................79

Modularization Used So Far.............................................................................................................................80

Other Modularization Possibilities....................................................................................................................81

Introduction to the Control Framework: Unit Summary...................................................................................82

Control Framework Basics Exercise 1..............................................................................................................83

Note on the Sample Solutions for Unit 02........................................................................................................94

Introduction to the Control Framework Solution Task 1..................................................................................95

SAP Container.........................................................................................................................................................1

SAP Container: Unit Objectives.........................................................................................................................2

Overview Diagram BC412..................................................................................................................................3

SAP Container Overview:The Container Concept..............................................................................................4

Uses for Containers.............................................................................................................................................5

SAP Container Classes........................................................................................................................................6

Graphical Visualization of Containers................................................................................................................7

Dialog Box Level and Top-Level Container.......................................................................................................8

Technical Methods for Attaching SAP Containers.............................................................................................9

Visibility and Lifetime of SAP Containers.......................................................................................................10

SAP Container Overview:SAP Custom Container Control..............................................................................11

SAP Custom Container: Features......................................................................................................................12

Creating an Instance of the SAP Custom Container Control............................................................................13

Relinking an SAP Custom Container................................................................................................................14

SAP Container Overview:SAP Dialog Box Container Control........................................................................15

SAP Dialog Box Container: Features................................................................................................................16

Creating an Instance of the SAP Dialog Box Container Control......................................................................17

SAP Container Overview:SAP Docking Container Control.............................................................................18

SAP Docking Container: Features....................................................................................................................19

SAP Docking Container: Linking to the Screen...............................................................................................20

Creating an Instance of the SAP Docking Container Control...........................................................................21

Reading and Setting Attributes.........................................................................................................................22

Relinking an SAP Docking Container..............................................................................................................23

SAP Container Overview:SAP Splitter Container Control...............................................................................24

SAP Splitter Container: Features......................................................................................................................25

SAP Splitter Container: Use..............................................................................................................................26

Creating an Instance of the SAP Splitter Container Control.............................................................................27

SAP Splitter Container: Finding a Cell Reference............................................................................................28

Reading and Setting Attributes.........................................................................................................................29

SAP Container Overview:SAP Easy Splitter Container Control......................................................................30

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