Hi welcome !!!
I would like to share the code/logic of method GET_TABLE_DATA of interface IF_WD_TABLE_METHOD_HNDL which helps to read the data from a filtered Table in Web Dynpro ABAP.
I have come across few SCN threads where in the requirement for reading filtered table data is left unanswered, as the method GET_TABLE_DATA( ) is not available in interface IF_WD_TABLE_METHOD_HNDL in their systems. I think the method GET_TABLE_DATA is available from SAP_ABA 731.
So, it might be useful if the logic to read the data from a filtered table is available for all.
Pre-requisite:
Basic knowledge of Webdynpro ABAP,& OO ABAP
Create below method.
| GET_TABLE_DATA( ) |
|---|
Parameters: IO_TBL Importing type ref to CL_WD_TABLE METHOD get_table_data.
DATA elements TYPE wdr_context_element_set. DATA element TYPE REF TO if_wd_context_element. DATA row_data TYPE wdr_table_row_data. DATA last_row_index TYPE i. DATA first_row_index TYPE i. DATA wd_row_arrangement_type_id TYPE guid. DATA wd_row_arrangement TYPE REF TO cl_wd_view_element. DATA first_actual_row TYPE i. DATA fixed_row_count TYPE i. DATA data_source TYPE REF TO if_wd_context_node. DATA row_count TYPE i. DATA selected_elements TYPE wdr_context_element_set. DATA first_row TYPE i. DATA last_row TYPE i value -1. CONSTANTS c_none TYPE guid VALUE ''. CLEAR rt_data. CLEAR selected_elements. row_count = 0. IF data_source IS NOT BOUND. data_source = io_tbl->get_data_source( ). ENDIF. wd_row_arrangement ?= io_tbl->get_row_arrangement( ). IF wd_row_arrangement IS NOT BOUND. wd_row_arrangement = io_tbl->get_master_column( ). ENDIF. IF wd_row_arrangement IS BOUND. wd_row_arrangement_type_id = wd_row_arrangement->_cid. ENDIF. fixed_row_count = io_tbl->get_row_count( ). first_actual_row = io_tbl->get_first_actual_row( ). CASE wd_row_arrangement_type_id. WHEN c_none. selected_elements = data_source->get_selected_elements( ). IF fixed_row_count = -1. row_count = data_source->get_element_count( ) + first_actual_row. ELSE. row_count = fixed_row_count. ENDIF. first_row_index = first_row - first_actual_row. IF last_row = -1 OR last_row > row_count. last_row_index = row_count - first_actual_row. ELSE. last_row_index = last_row - first_actual_row. ENDIF. IF last_row_index >= first_row_index. elements = data_source->get_elements( from = first_row_index to = last_row_index ). ENDIF. LOOP AT elements INTO element. row_data-context_element = element. row_data-level = 0. INSERT row_data INTO TABLE rt_data. ENDLOOP. ENDCASE. ENDMETHOD. |
Let us say, we have created the above method GET_TABLE_DATA in component controller of WD component.
Please refer to the below steps to read data from a filtered table
Steps:
- Go to attributes tab of view and create an view attribute GO_TBL of type ref to CL_WD_TABLE
- Go to method WDDOMODIFYVIEW( ) and write the below logic to get the reference of table ui element "MY_TABLE"
METHOD wddomodifyview . IF first_time = abap_true. "Note: my_table is the ui name of table in view layout wd_this->go_tbl = view->get_element( 'MY_TABLE' ) ENDIF. ENDMETHOD.
- Now, to read data from filtered table, use the below code
data lt_data type WDR_TABLE_ROW_DATA_TAB. wd_comp_controller->get_table_data( exporting io_tbl = wd_this->go_tbl receiving rt_data = lt_data ).
Thank you for your time and hope content of this blog was helpful.
Your comments / Feedback / suggestions are highly appreciable & always welcome