SAP TREEV_EXPAND_ROOT_NODES Function Module for Expands all Root Nodes

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TREEV_EXPAND_ROOT_NODES is a standard treev expand root nodes SAP function module available within SAP R/3 or S/4 Hana systems, depending on your version and release level. It is used for Expands all Root Nodes processing and below is the pattern details for this FM, showing its interface including any import and export parameters, exceptions etc. there is also a full "cut and paste" ABAP pattern code example, along with implementation ABAP coding, documentation and contribution comments specific to this or related objects.

See here to view full function module documentation and code listing for treev expand root nodes FM, simply by entering the name TREEV_EXPAND_ROOT_NODES into the relevant SAP transaction such as SE37 or SE38.

Function Group: CNT4
Program Name: SAPLCNT4
Main Program:
Appliation area: S
Release date: N/A
Mode(Normal, Remote etc): Normal Function Module
Update:

Function TREEV_EXPAND_ROOT_NODES pattern details

In-order to call this FM within your sap programs, simply using the below ABAP pattern details to trigger the function call...or see the full ABAP code listing at the end of this article. You can simply cut and paste this code into your ABAP progrom as it is, including variable declarations.

CALL FUNCTION 'TREEV_EXPAND_ROOT_NODES'"Expands all Root Nodes
  EXPORTING
   HANDLE =  "Handle for Tree Control
   LEVEL_COUNT =  "Number of Levels to be Expanded
   EXPAND_ALL_CHILDREN =  "
*  NO_FLUSH =  "

EXCEPTIONS
   FAILED = 1    ILLEGAL_LEVEL_COUNT = 2    CNTL_SYSTEM_ERROR = 3 

.

IMPORTING Parameters details for TREEV_EXPAND_ROOT_NODES

HANDLE - Handle for Tree Control

Data type: CNTL_HANDLE
Optional: No
Call by Reference: Yes

LEVEL_COUNT - Number of Levels to be Expanded

Data type: I
Optional: No
Call by Reference: No ( called with pass by value option)

EXPAND_ALL_CHILDREN -

Data type: C
Optional: No
Call by Reference: No ( called with pass by value option)

NO_FLUSH -

Data type: C
Optional: Yes
Call by Reference: No ( called with pass by value option)

EXCEPTIONS details

FAILED - General Error

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

ILLEGAL_LEVEL_COUNT - LEVEL_COUNT Must Be GE 0

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

CNTL_SYSTEM_ERROR -

Data type:
Optional: No
Call by Reference: No ( called with pass by value option)

Copy and paste ABAP code example for TREEV_EXPAND_ROOT_NODES Function Module

The ABAP code below is a full code listing to execute function module POPUP_TO_CONFIRM including all data declarations. The code uses the original data declarations rather than the latest in-line data DECLARATION SYNTAX but I have included an ABAP code snippet at the end to show how declarations would look using the newer method of declaring data variables on the fly. This will allow you to compare and fully understand the new inline method. Please note some of the newer syntax such as the @DATA is not available until a later 4.70 service pack (SP8), which i why i have stuck to the origianl for this example.

ABAP code using 7.40 inline data declarations to call FM TREEV_EXPAND_ROOT_NODES

The below ABAP code uses the newer in-line data declarations. This allows you to see the coding differences/benefits of the later inline syntax. Please note some of the newer syntax below, such as the @DATA is not available until 4.70 EHP 8.

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