之前写过很多关于ALV的demo，可以点击干货列表 ALV相关 查看。
里面有几篇关于CL_SALV_TABLE 显示alv的
但是使用这个class 实现 可控制的列编辑，单元格编辑一直没找到（可以使用传统的OO ALV实现 ，可参考：OOALV demo）。
网上查得到的信息是：不支持
然后有位外国小哥用下面的方法实现了列编辑：
效果如下，Ｆ8 执行后，双击某行
代码如下，有兴趣可以自己研究下，直接copy过去执行即可运行
*----------------------------------------------------------------------*
* CLASS lcl_salv_buddy DEFINITION
*----------------------------------------------------------------------*
*
* Developed by Lino Lopes (lino2112@gmail.com) - Version 1.0
*
* This class is meant to be used with SALV objects to gain access to the GUI control that exist behind them.
* All SALV objects are descendants of the CL_SALV_MODEL_BASE class. Currently, there are the following SALV object classes:
* CL_SALV_TABLE
* CL_SALV_HIERSEQ_TABLE
* CL_SALV_TREE
*
* We inherit from the abstract class CL_SAL_CONTROLLER because SALV objects have it as a FRIEND, thus
* making us a FRIEND of SALV objects too. That allows us to have access to ALL attributes and methods of
* SALV objects, regardless of them being PUBLIC, PROTECTED or PRIVATE. Example: R_CONTROLLER.
* Since this class only has STATIC methods, there's no need to instantiate objects of its type, thus the CRIATE PRIVATE.
* Finally, I see no need to inherit from this class, so this class is declared FINAL.
*----------------------------------------------------------------------*
CLASS lcl_salv_buddy DEFINITION INHERITING FROM cl_salv_controller CREATE PRIVATE FINAL.
PUBLIC SECTION.
*----------------------------------------------------------------------*
* GET_CONTROL_RTTI - Returns runtime type information for the control that is behind a SALV object.
* Parameter E_ADAPTER_TYPE returns the adapter type of a SALV object.
* Based on this information, method GET_CONTROL will return a different control in its returrning parameter R_CONTROL.
* You can use this runtime type information to choose the right control object to supply to the returning parameter R_CONTROL of method GET_CONTROL.
* Parameter E_CONTROL_RTTI returns a TYPE HANDLE that you can use to create an object compatible with the returning parameter R_CONTROL of method GET_CONTROL.
* Below there is a correspondence between the adapter type returned in parameter E_ADAPTER_TYPE and
* the type of the control expected in parameter R_CONTROL of method GET_CONTROL:
* IF_SALV_ADAPTER~C_ADAPTER_TYPE_FULLSCREEN CL_GUI_ALV_GRID
* IF_SALV_ADAPTER~C_ADAPTER_TYPE_GRID CL_GUI_ALV_GRID
* IF_SALV_ADAPTER~C_ADAPTER_TYPE_HIERSEQ nothing (null)
* IF_SALV_ADAPTER~C_ADAPTER_TYPE_LIST CL_SALV_TABLE
* IF_SALV_ADAPTER~C_ADAPTER_TYPE_TREE CL_SALV_GUI_TREE
* IF_SALV_ADAPTER~C_ADAPTER_TYPE_APPEND nothing (null)
*----------------------------------------------------------------------*
CLASS-METHODS: get_control_rtti IMPORTING i_salv TYPE REF TO cl_salv_model_base
EXPORTING e_adapter_type TYPE salv_de_adapter_type
e_control_rtti TYPE REF TO cl_abap_typedescr,
*----------------------------------------------------------------------*
* GET_CONTROL - Returns the control that is behind the SALV object.
* MUST be called after the DISPLAY method of the SALV object, so that its control gets created.
* See method GET_CONTROL_RTTI above for a correspondence between what you supply in paramter I_SALV and what you get back in parameter R_CONTROL.
*----------------------------------------------------------------------*
get_control IMPORTING i_salv TYPE REF TO cl_salv_model_base
RETURNING value(r_control) TYPE REF TO object,
*----------------------------------------------------------------------*
* SET_EDITABLE - Enables OR disables editing on a CL_SALV_TABLE object.
* If you supply parameter I_FIELDNAME and supply it NOT INITIAL, you get that
* field enabled or disabled for editing, depending on parameter I_EDITABLE.
* If you do not supply parameter I_FIELDNAME or supply it INITIAL, you get
* all fields of the table enabled or disabled for editing, depending on parameter I_EDITABLE.
* Parameter I_SALV_TABLE is the CL_SALV_TABLE object you want to enable or disable editing for.
* Parameter I_EDITABLE should be ABAP_TRUE or ABAP_FALSE to enable or disable editing.
* Parameter I_REFRESH indicates whether you want the control to be refreshed or not. You'll only see the changes
* you've made using this method AFTER you do a refresh on the CL_SALV_TABLE object.
* NOTE: If you want field per field editing capabilities, you MUST make sure editing for the whole table is disabled.
* You can disable editing for the whole table simply by issuing a call to this method, omitting parameter I_FIELDNAME and
* passing parameter I_EDITABLE as ABAP_FALSE. After that you can enable or disable editing on a field per field basis.
* The CL_SALV_TABLE is disabled for editing by default.
*----------------------------------------------------------------------*
set_editable IMPORTING value(i_fieldname) TYPE csequence OPTIONAL
i_salv_table TYPE REF TO cl_salv_table
value(i_editable) TYPE abap_bool DEFAULT abap_true
value(i_refresh) TYPE abap_bool DEFAULT abap_true.
PRIVATE SECTION.
*----------------------------------------------------------------------*
* GET_CONTROL_INTERNAL - It is the guts of method GET_CONTROL. It does all the heavy work and method GET_CONTROL gets all the credits
*----------------------------------------------------------------------*
CLASS-METHODS: get_control_internal IMPORTING i_salv TYPE REF TO cl_salv_model_base
EXPORTING e_adapter_type TYPE salv_de_adapter_type
e_control TYPE REF TO object.
ENDCLASS. "lcl_salv_buddy DEFINITION
*----------------------------------------------------------------------*
* CLASS lcl_salv_buddy IMPLEMENTATION
*----------------------------------------------------------------------*
CLASS lcl_salv_buddy IMPLEMENTATION.
METHOD get_control_internal.
DATA: lo_controller TYPE REF TO cl_salv_controller_model,
lo_adapter TYPE REF TO cl_salv_adapter,
lo_fullscreen_adapter TYPE REF TO cl_salv_fullscreen_adapter,
lo_grid_adapter TYPE REF TO cl_salv_grid_adapter,
lo_table_display_adapter TYPE REF TO if_salv_table_display_adapter,
lo_tree_adapter_base TYPE REF TO cl_salv_tree_adapter_base.
CHECK e_adapter_type IS REQUESTED OR
e_control IS REQUESTED.
IF e_adapter_type IS REQUESTED.
CLEAR e_adapter_type.
ENDIF.
IF e_control IS REQUESTED.
CLEAR e_control.
ENDIF.
lo_controller = i_salv->r_controller.
CHECK lo_controller IS BOUND.
lo_adapter = lo_controller->r_adapter.
CHECK lo_adapter IS BOUND.
IF e_adapter_type IS REQUESTED.
e_adapter_type = lo_adapter->type.
ENDIF.
CHECK e_control IS REQUESTED.
CASE lo_adapter->type.
WHEN lo_adapter->if_salv_adapter~c_adapter_type_fullscreen.
lo_fullscreen_adapter ?= lo_adapter.
e_control = lo_fullscreen_adapter->get_grid( ).
WHEN lo_adapter->if_salv_adapter~c_adapter_type_grid.
lo_grid_adapter ?= lo_adapter.
e_control = lo_grid_adapter->get_grid( ).
WHEN lo_adapter->if_salv_adapter~c_adapter_type_hierseq.
WHEN lo_adapter->if_salv_adapter~c_adapter_type_list.
lo_table_display_adapter ?= lo_adapter.
e_control = lo_table_display_adapter->r_table.
WHEN lo_adapter->if_salv_adapter~c_adapter_type_tree.
lo_tree_adapter_base ?= lo_adapter.
e_control = lo_tree_adapter_base->r_tree.
WHEN lo_adapter->if_salv_adapter~c_adapter_type_append.
ENDCASE.
ENDMETHOD. "get_control_internal
METHOD get_control_rtti.
DATA: lv_adapter_type TYPE salv_de_adapter_type,
lo_control TYPE REF TO object.
CHECK e_adapter_type IS REQUESTED OR
e_control_rtti IS REQUESTED.
IF e_adapter_type IS REQUESTED.
CLEAR e_adapter_type.
ENDIF.
IF e_control_rtti IS REQUESTED.
CLEAR e_control_rtti.
ENDIF.
get_control_internal( EXPORTING i_salv = i_salv IMPORTING e_adapter_type = lv_adapter_type e_control = lo_control ).
IF e_adapter_type IS REQUESTED.
e_adapter_type = lv_adapter_type.
ENDIF.
IF e_control_rtti IS REQUESTED.
e_control_rtti = cl_abap_typedescr=>describe_by_object_ref( lo_control ).
ENDIF.
ENDMETHOD. "get_control_rtti
METHOD get_control.
CHECK r_control IS REQUESTED.
get_control_internal( EXPORTING i_salv = i_salv IMPORTING e_control = r_control ).
ENDMETHOD. "get_control
METHOD set_editable.
CONSTANTS: lc_stable TYPE lvc_s_stbl VALUE 'XX'.
DATA: lo_grid TYPE REF TO cl_gui_alv_grid,
lt_fieldcat TYPE lvc_t_fcat,
ls_layout TYPE lvc_s_layo.
FIELD-SYMBOLS: <fs_fieldcat> LIKE LINE OF lt_fieldcat.
lo_grid ?= get_control( i_salv_table ).
CHECK lo_grid IS BOUND.
IF i_fieldname IS SUPPLIED AND
i_fieldname IS NOT INITIAL.
lo_grid->get_frontend_fieldcatalog( IMPORTING et_fieldcatalog = lt_fieldcat ).
READ TABLE lt_fieldcat ASSIGNING <fs_fieldcat> WITH KEY fieldname = i_fieldname.
CHECK sy-subrc = 0.
<fs_fieldcat>-edit = i_editable.
lo_grid->set_frontend_fieldcatalog( lt_fieldcat ).
ELSE.
lo_grid->get_frontend_layout( IMPORTING es_layout = ls_layout ).
ls_layout-edit = i_editable.
lo_grid->set_frontend_layout( EXPORTING is_layout = ls_layout ).
ENDIF.
CHECK i_refresh = abap_true.
i_salv_table->refresh( lc_stable ).
ENDMETHOD. "set_editable
ENDCLASS. "lcl_salv_buddy IMPLEMENTATION
DATA: gv_editable TYPE abap_bool,
go_salv_table TYPE REF TO cl_salv_table,
gt_salv_table TYPE TABLE OF t001p,
go_events TYPE REF TO cl_salv_events_table,
go_grid TYPE REF TO cl_gui_alv_grid.
*----------------------------------------------------------------------*
* CLASS lcl_event_handler DEFINITION
*----------------------------------------------------------------------*
*
*----------------------------------------------------------------------*
CLASS lcl_event_handler DEFINITION.
PUBLIC SECTION.
CLASS-METHODS: handle_double_click FOR EVENT double_click OF cl_salv_events_table
IMPORTING row column.
ENDCLASS. "lcl_event_handler DEFINITION
*----------------------------------------------------------------------*
* CLASS lcl_event_handler IMPLEMENTATION
*----------------------------------------------------------------------*
*
*----------------------------------------------------------------------*
CLASS lcl_event_handler IMPLEMENTATION.
METHOD handle_double_click.
IF gv_editable = abap_false.
gv_editable = abap_true.
ELSE.
gv_editable = abap_false.
ENDIF.
lcl_salv_buddy=>set_editable( i_fieldname = 'MOLGA' i_salv_table = go_salv_table i_editable = gv_editable ).
lcl_salv_buddy=>set_editable( i_fieldname = 'JUPER' i_salv_table = go_salv_table i_editable = gv_editable ).
ENDMETHOD. "handle_double_click
ENDCLASS. "lcl_event_handler IMPLEMENTATION
START-OF-SELECTION.
SELECT *
INTO TABLE gt_salv_table
FROM t001p.
END-OF-SELECTION.
cl_salv_table=>factory(
EXPORTING
list_display = if_salv_c_bool_sap=>false " ALV Displayed in List Mode
IMPORTING
r_salv_table = go_salv_table
CHANGING
t_table = gt_salv_table ).
go_events = go_salv_table->get_event( ).
SET HANDLER lcl_event_handler=>handle_double_click FOR go_events.
go_salv_table->display( ).
