2007 Sep 19 11:16 AM
hi guru's,
what is exact use of FM
REUSE_ALV_FIELDCATALOG_MERGE
thanks in advance
2007 Sep 19 11:21 AM
HI
FU REUSE_ALV_FIELDCATALOG_MERGE
____________________________________________________
Short Text
Create field catalog from dictionary structure or internal table
Functionality
Supports the creation of the field catalog for the ALV function modules
based either on a structure or table defined in the ABAP Data
Dictionary, or a program-internal table.
The program-internal table must either be in a TOP Include or its
Include must be specified explicitly in the interface.
The variant based on a program-internal table should only be used for
rapid prototyping since the following restrictions apply:
o Performance is affected since the code of the table definition must
always be read and interpreted at runtime.
o Dictionary references are only considered if the keywords LIKE or
INCLUDE STRUCTURE (not TYPE) are used.
If the field catalog contains more than 90 fields, the first 90 fields
are output in the list by default whereas the remaining fields are only
available in the field selection.
If the field catalog is passed with values, they are merged with the
'automatically' found information.
Parameters
I_PROGRAM_NAME
I_INTERNAL_TABNAME
I_STRUCTURE_NAME
I_CLIENT_NEVER_DISPLAY
I_INCLNAME
I_BYPASSING_BUFFER
I_BUFFER_ACTIVE
CT_FIELDCAT
Exceptions
INCONSISTENT_INTERFACE
PROGRAM_ERROR
Function Group
SALV
*************************************
The Function module documentation is as follows.
Supports the creation of the field catalog for the ALV function modules based either on a structure or table defined in the ABAP Data Dictionary, or a program-internal table.
The program-internal table must either be in a TOP Include or its Include must be specified explicitly in the interface.
The variant based on a program-internal table should only be used for rapid prototyping since the following restrictions apply:
Performance is affected since the code of the table definition must always be read and interpreted at runtime.
Dictionary references are only considered if the keywords LIKE or INCLUDE STRUCTURE (not TYPE) are used.
If the field catalog contains more than 90 fields, the first 90 fields are output in the list by default whereas the remaining fields are only available in the field selection.
If the field catalog is passed with values, they are merged with the 'automatically' found information.
***********************************************
Check this sample program:
http://www.sap-img.com/fu015.htm
http://www.sap-img.com/abap/reincarnation-of-reuse-alv-fieldcatalog-merge.htm
***********************************************
check these threads............
https://forums.sdn.sap.com/click.jspa?searchID=1192539&messageID=2528136
https://forums.sdn.sap.com/click.jspa?searchID=1192539&messageID=2827913
https://forums.sdn.sap.com/click.jspa?searchID=1192539&messageID=1552643
***********************************
Regards
vasu
2007 Sep 19 11:21 AM
HI
FU REUSE_ALV_FIELDCATALOG_MERGE
____________________________________________________
Short Text
Create field catalog from dictionary structure or internal table
Functionality
Supports the creation of the field catalog for the ALV function modules
based either on a structure or table defined in the ABAP Data
Dictionary, or a program-internal table.
The program-internal table must either be in a TOP Include or its
Include must be specified explicitly in the interface.
The variant based on a program-internal table should only be used for
rapid prototyping since the following restrictions apply:
o Performance is affected since the code of the table definition must
always be read and interpreted at runtime.
o Dictionary references are only considered if the keywords LIKE or
INCLUDE STRUCTURE (not TYPE) are used.
If the field catalog contains more than 90 fields, the first 90 fields
are output in the list by default whereas the remaining fields are only
available in the field selection.
If the field catalog is passed with values, they are merged with the
'automatically' found information.
Parameters
I_PROGRAM_NAME
I_INTERNAL_TABNAME
I_STRUCTURE_NAME
I_CLIENT_NEVER_DISPLAY
I_INCLNAME
I_BYPASSING_BUFFER
I_BUFFER_ACTIVE
CT_FIELDCAT
Exceptions
INCONSISTENT_INTERFACE
PROGRAM_ERROR
Function Group
SALV
*************************************
The Function module documentation is as follows.
Supports the creation of the field catalog for the ALV function modules based either on a structure or table defined in the ABAP Data Dictionary, or a program-internal table.
The program-internal table must either be in a TOP Include or its Include must be specified explicitly in the interface.
The variant based on a program-internal table should only be used for rapid prototyping since the following restrictions apply:
Performance is affected since the code of the table definition must always be read and interpreted at runtime.
Dictionary references are only considered if the keywords LIKE or INCLUDE STRUCTURE (not TYPE) are used.
If the field catalog contains more than 90 fields, the first 90 fields are output in the list by default whereas the remaining fields are only available in the field selection.
If the field catalog is passed with values, they are merged with the 'automatically' found information.
***********************************************
Check this sample program:
http://www.sap-img.com/fu015.htm
http://www.sap-img.com/abap/reincarnation-of-reuse-alv-fieldcatalog-merge.htm
***********************************************
check these threads............
https://forums.sdn.sap.com/click.jspa?searchID=1192539&messageID=2528136
https://forums.sdn.sap.com/click.jspa?searchID=1192539&messageID=2827913
https://forums.sdn.sap.com/click.jspa?searchID=1192539&messageID=1552643
***********************************
Regards
vasu
2007 Sep 19 11:23 AM
HI
this is basically used if you want to use any SE11 structure directly as your fieldcataloge.
in this case you need not make your fieldcataloge in the alv code
reward if useful
vivekanand
2007 Sep 19 11:23 AM
hi,
This function module is used to generate the field catalog.
You have to pass the internal table name to this function module with which you want to create field catalog and also if you defined that internal table in the include then pass the name of that include else report name.
Functionality
Supports the creation of the field catalog for the ALV function modules based either on a structure or table defined in the ABAP Data Dictionary, or a program-internal table.
The program-internal table must either be in a TOP Include or its Include must be specified explicitly in the interface.
The variant based on a program-internal table should only be used for rapid prototyping since the following restrictions apply:
Performance is affected since the code of the table definition must always be read and interpreted at runtime.
Dictionary references are only considered if the keywords LIKE or INCLUDE STRUCTURE (not TYPE) are used.
If the field catalog contains more than 90 fields, the first 90 fields are output in the list by default whereas the remaining fields are only available in the field selection.
If the field catalog is passed with values, they are merged with the 'automatically' found information.
.
Reward point if useful...
-Umesh
2007 Sep 19 11:29 AM
feildcatalog contains description of the list output feilds,
usually a subset of the internal output table feilds
a feildcatalog is required for every alv list output to add desired functionality
regards
prasanth kumar
2007 Sep 19 11:34 AM
hai ,
the main use of that FM is that it takes all the fields in the internal table to the field catlog.so if u want to display particular fields in the table it is not possible.
hope it is usefull.