How to add PF Status in ALV using class CL_ALV. How to add Header and Footer in ALV using class CL_ALV.
Introduction
We can develop ALV using different ways like using type pool SLIS or using the class Cl_GUI_ALV_GRID.
In this article we will see how we can add PF-Status, Header and Footer to the ALV which is developed using class CL_SALV .
Code Snippet
In this program we will see adding PF-STATUS, Header and Footer to ALV using a single class CL_SALV_TABLE.
Code:
REPORT ZNAG_SAMPLE_01.
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CLASS lcl_report DEFINITION
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*
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CLASS LCL_REPORT DEFINITION.
PUBLIC SECTION.
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Final Output Table
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TYPES: BEGIN OF TY_MARA,
MATNR TYPE MATNR,
ERSDA TYPE ERSDA,
MATKL TYPE MATKL,
MTART TYPE MTART,
LVORM TYPE LVORM,
END OF TY_MARA.
DATA: O_ALV TYPE REF TO CL_SALV_TABLE, ” ALV Reference
T_MARA TYPE STANDARD TABLE OF TY_MARA.
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Methods to Fetch Data and Generate Output
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METHODS: GET_DATA, “Data Selection
GENERATE_OUTPUT. “Generating Output
PRIVATE SECTION.
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Methods to Set PF-Status, Header and Footer
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METHODS: SET_PF_STATUS
CHANGING
CO_ALV TYPE REF TO CL_SALV_TABLE, ” Default Pf Status
SET_TOP_OF_PAGE
CHANGING
CO_ALV TYPE REF TO CL_SALV_TABLE, ” Set Top of page
SET_END_OF_PAGE
CHANGING
CO_ALV TYPE REF TO CL_SALV_TABLE. ” Set End of page
ENDCLASS. “lcl_report DEFINITION
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CLASS lcl_report IMPLEMENTATION
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*
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CLASS LCL_REPORT IMPLEMENTATION.
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Data selection
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METHOD GET_DATA.
SELECT MATNR ERSDA MATKL MTART LVORM INTO TABLE T_MARA
FROM MARA UP TO 20 ROWS.
ENDMETHOD. “get_data
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Generating Output
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METHOD GENERATE_OUTPUT.
*Exception Class
DATA: LC_MSG TYPE REF TO CX_SALV_MSG.
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We are calling the static Factory method which will give back
the ALV object reference.
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TRY.
CALL METHOD CL_SALV_TABLE=>FACTORY
IMPORTING
R_SALV_TABLE = O_ALV
CHANGING
T_TABLE = T_MARA.
CATCH CX_SALV_MSG INTO LC_MSG .
ENDTRY.
In this area we will call the methods which will set the
different properties to the ALV
Calling Set PF status method
CALL METHOD SET_PF_STATUS
CHANGING
CO_ALV = O_ALV. “set_end_of_page
Calling the top of page method
CALL METHOD SET_TOP_OF_PAGE
CHANGING
CO_ALV = O_ALV.
Calling the End of page method
CALL METHOD SET_END_OF_PAGE
CHANGING
CO_ALV = O_ALV.
Displaying the ALV
Here we will call the DISPLAY method to get the output on the screen
O_ALV->DISPLAY( ).ENDMETHOD. “generate_output
In this area we will implement the methods which are defined in
the class definition
Setting Default PF-Status
METHOD SET_PF_STATUS.
DATA: LO_FUNCTIONS TYPE REF TO CL_SALV_FUNCTIONS_LIST.
Default functions
LO_FUNCTIONS = CO_ALV->GET_FUNCTIONS( ).
LO_FUNCTIONS->SET_DEFAULT( ABAP_TRUE ).
ENDMETHOD. “set_pf_status
Setting Top_of_page
METHOD SET_TOP_OF_PAGE.
DATA: LO_HEADER TYPE REF TO CL_SALV_FORM_LAYOUT_GRID,
LO_H_LABEL TYPE REF TO CL_SALV_FORM_LABEL,
LO_H_FLOW TYPE REF TO CL_SALV_FORM_LAYOUT_FLOW.
Header object
CREATE OBJECT LO_HEADER.
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To create a Label or Flow we have to specify the target
row and column number where we need to set up the output
text.
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Information in Bold
LO_H_LABEL = LO_HEADER->CREATE_LABEL( ROW = 1 COLUMN = 1 ).
LO_H_LABEL->SET_TEXT(‘Header of the ALV Output in Bold’).
Information in tabular format
LO_H_FLOW = LO_HEADER->CREATE_FLOW( ROW = 2 COLUMN = 1 ).
LO_H_FLOW->CREATE_TEXT( TEXT = ‘This is text of flow in Header’ ).
LO_H_FLOW = LO_HEADER->CREATE_FLOW( ROW = 3 COLUMN = 1 ).
LO_H_FLOW->CREATE_TEXT( TEXT = ‘Date of List Generation’ ).
LO_H_FLOW = LO_HEADER->CREATE_FLOW( ROW = 3 COLUMN = 2 ).
LO_H_FLOW->CREATE_TEXT( TEXT = sy-datum ).
Set the top of list using the header for Online
CO_ALV->SET_TOP_OF_LIST( LO_HEADER ).
Set the top of list using the header for Print
CO_ALV->SET_TOP_OF_LIST_PRINT( LO_HEADER ).
ENDMETHOD. “set_top_of_page
Setting End_Of_page
METHOD SET_END_OF_PAGE.
DATA: LO_FOOTER TYPE REF TO CL_SALV_FORM_LAYOUT_GRID,
LO_F_LABEL TYPE REF TO CL_SALV_FORM_LABEL,
LO_F_FLOW TYPE REF TO CL_SALV_FORM_LAYOUT_FLOW.
Footer Object
CREATE OBJECT LO_FOOTER.
Information in Bold
LO_F_LABEL = LO_FOOTER->CREATE_LABEL( ROW = 1 COLUMN = 1 ).
LO_F_LABEL->SET_TEXT(‘Footer of the ALV in Bold’).
Tabular Information
LO_F_FLOW = LO_FOOTER->CREATE_FLOW( ROW = 2 COLUMN = 1 ).
LO_F_FLOW->CREATE_TEXT( TEXT = ‘This is text of flow in footer’ ).
Set the end of list using the header for Online
CO_ALV->SET_END_OF_LIST( LO_FOOTER ).
Set the End of list using the header for Print
CO_ALV->SET_END_OF_LIST_PRINT( LO_FOOTER ).
ENDMETHOD. “set_end_of_page
ENDCLASS. “lcl_report IMPLEMENTATION
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START-OF-SELECTION.
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DATA: LO_REPORT TYPE REF TO LCL_REPORT.
CREATE OBJECT LO_REPORT.
LO_REPORT->GET_DATA( ).
LO_REPORT->GENERATE_OUTPUT( ).