使用REUSE_ALV_GRID_DISPLAY_LVC显示ALV时，如何将列、行或者具体的某个单元格设置成可编辑能输入状态？这个其实很简单，下面一一讲解：
1, 列可编辑
只要将catalog中的字段edit设置成‘X'，整列就变成能输入的了，LVC_S_FCAT-EDIT
代码：
REPORT ztest_alv_lvc_edit. TYPES:BEGIN OF gty_ekko, ebeln TYPE ekko-ebeln, verkf TYPE ekko-verkf, END OF gty_ekko. DATA:git_ekko TYPE STANDARD TABLE OF gty_ekko. DATA:git_fcat TYPE lvc_t_fcat, gwa_fcat LIKE LINE OF git_fcat, gwa_layout TYPE lvc_s_layo. DATA:l_pos TYPE i VALUE 1. START-OF-SELECTION. SELECT ebeln verkf INTO TABLE git_ekko FROM ekko UP TO 10 ROWS. CLEAR: l_pos. l_pos = l_pos + 1. gwa_fcat-coltext = 'PO'. gwa_fcat-scrtext_l = 'PO'. gwa_fcat-scrtext_m = 'PO'. gwa_fcat-scrtext_s = 'PO'. gwa_fcat-fieldname = 'EBELN'. gwa_fcat-col_pos = l_pos. gwa_fcat-outputlen = '10'. APPEND gwa_fcat TO git_fcat. l_pos = l_pos + 1. gwa_fcat-coltext = 'PO item'. gwa_fcat-scrtext_l = 'PO item'. gwa_fcat-scrtext_m = 'PO item'. gwa_fcat-scrtext_s = 'PO item'. gwa_fcat-fieldname = 'VERKF'. gwa_fcat-col_pos = l_pos. gwa_fcat-edit = 'X'. "设置列为可编辑状态 gwa_fcat-outputlen = '20'. APPEND gwa_fcat TO git_fcat. gwa_layout-zebra = 'X'. gwa_layout-sel_mode = 'A'. gwa_layout-cwidth_opt = 'X'. CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY_LVC' EXPORTING i_callback_program = sy-repid is_layout_lvc = gwa_layout it_fieldcat_lvc = git_fcat TABLES t_outtab = git_ekko[] EXCEPTIONS program_error = 1 OTHERS = 2. IF sy-subrc = 0. * BREAK-POINT. ENDIF.
运行结果：
2, 整个ALV可编辑
将layout中的EDIT字段赋值’X'(LVC_S_LAYO-EDIT)，就可以将整个ALV设置成可输入状态。
还有一种比较笨的办法就是将所有列都设置成可输入。
代码：
gwa_layout-zebra = 'X'. gwa_layout-sel_mode = 'A'. gwa_layout-cwidth_opt = 'X'. gwa_layout-edit = 'X'. "将整个ALV设置成可编辑 gwa_glay-edt_cll_cb = 'X'. CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY_LVC' EXPORTING i_callback_program = sy-repid is_layout_lvc = gwa_layout it_fieldcat_lvc = git_fcat * i_grid_settings = gwa_glay TABLES t_outtab = git_ekko[] EXCEPTIONS program_error = 1 OTHERS = 2.
3, 单元格可编辑
如果要让单元格变成可输入，需要在alv输出内表中多定义一个保存单元格style的字段(类型：lvc_t_styl )，然后填入style属性(可编辑或者是不可编辑)，最后还要在layout-stylefname中指定style的字段名。
代码如下：将EBELN设置成不可输入。
TYPES:BEGIN OF gty_ekko, ebeln TYPE ekko-ebeln, verkf TYPE ekko-verkf, style TYPE lvc_t_styl, "将该字段设置为保存编辑状态的字段 END OF gty_ekko.
gwa_edit-fieldname = 'EBELN'. gwa_edit-style = cl_gui_alv_grid=>mc_style_disabled."设置为不可输入 INSERT gwa_edit INTO TABLE git_edit.
gwa_layout-stylefname = 'STYLE'. "指定保存编辑状态的字段名
style属性可以在类CL_GUI_ALV_GRID中可以找到：
MC_STYLE_DISABLED：禁止输入
MC_STYLE_ENABLED:可编辑，可输入。
需要注意的是：MC_STYLE_ENABLED输入性不能单独使用，一定在EDIT = 'X'(layout-edit 或者是catalog-edit)的场合下，才可以利用MC_STYLE_ENABLED进行不可编辑到编辑切换，也就是不设置edit = 'X',MC_STYLE_ENABLED是不起作用的。
完整代码：
REPORT ztest_alv_lvc_edit. TYPES:BEGIN OF gty_ekko, ebeln TYPE ekko-ebeln, verkf TYPE ekko-verkf, style TYPE lvc_t_styl, "设置编辑状态字段 END OF gty_ekko. DATA:git_ekko TYPE STANDARD TABLE OF gty_ekko, gwa_ekko TYPE gty_ekko. DATA:git_fcat TYPE lvc_t_fcat, gwa_fcat LIKE LINE OF git_fcat, gwa_layout TYPE lvc_s_layo, gwa_glay TYPE lvc_s_glay. DATA:gwa_edit TYPE lvc_s_styl, git_edit TYPE lvc_t_styl. START-OF-SELECTION. SELECT ebeln verkf INTO CORRESPONDING FIELDS OF TABLE git_ekko FROM ekko UP TO 10 ROWS. gwa_edit-fieldname = 'VERKF'. gwa_edit-style = cl_gui_alv_grid=>mc_style_disabled."设置为不可编辑 INSERT gwa_edit INTO TABLE git_edit. INSERT LINES OF git_edit INTO TABLE gwa_ekko-style. * 将除第三行的之外所有行的VERKF字段都设置成不能输入 DO 10 TIMES. IF sy-index <> 3. MODIFY git_ekko INDEX sy-index FROM gwa_ekko TRANSPORTING style. ENDIF. ENDDO. PERFORM frm_set_catalog. gwa_layout-zebra = 'X'. gwa_layout-sel_mode = 'A'. gwa_layout-cwidth_opt = 'X'. gwa_layout-edit = 'X'. "将整个ALV设置成可编辑 gwa_layout-stylefname = 'STYLE'. "指定保存编辑状态的字段名 gwa_glay-edt_cll_cb = 'X'. CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY_LVC' EXPORTING i_callback_program = sy-repid is_layout_lvc = gwa_layout it_fieldcat_lvc = git_fcat * i_grid_settings = gwa_glay TABLES t_outtab = git_ekko[] EXCEPTIONS program_error = 1 OTHERS = 2. IF sy-subrc = 0. ENDIF. *&---------------------------------------------------------------------* *& Form FRM_SET_CATALOG *&---------------------------------------------------------------------* * text *----------------------------------------------------------------------* * --> p1 text * <-- p2 text *----------------------------------------------------------------------* FORM frm_set_catalog . DATA:l_pos TYPE i VALUE 1. CLEAR: l_pos. l_pos = l_pos + 1. gwa_fcat-coltext = 'PO'. gwa_fcat-scrtext_l = 'PO'. gwa_fcat-scrtext_m = 'PO'. gwa_fcat-scrtext_s = 'PO'. gwa_fcat-fieldname = 'EBELN'. gwa_fcat-col_pos = l_pos. gwa_fcat-outputlen = '10'. APPEND gwa_fcat TO git_fcat. l_pos = l_pos + 1. gwa_fcat-coltext = 'PO item'. gwa_fcat-scrtext_l = 'PO item'. gwa_fcat-scrtext_m = 'PO item'. gwa_fcat-scrtext_s = 'PO item'. gwa_fcat-fieldname = 'VERKF'. gwa_fcat-edit = 'X'. "将这列设置为可编辑 gwa_fcat-col_pos = l_pos. gwa_fcat-outputlen = '20'. APPEND gwa_fcat TO git_fcat. ENDFORM.
4, 行可编辑
类似于单元格可编辑，只要将一行之外的所有行都变成不可输入，也就实现了行可编辑。逻辑如下：
1，通过layout-edit = ’X' 将整个行项目都变成可输入
2，将某行之外的所有行style设置成 cl_gui_alv_grid=>mc_style_disabled.
代码：
REPORT ztest_alv_lvc_edit. TYPES:BEGIN OF gty_ekko, ebeln TYPE ekko-ebeln, verkf TYPE ekko-verkf, style TYPE lvc_t_styl, "设置编辑状态字段 END OF gty_ekko. DATA:git_ekko TYPE STANDARD TABLE OF gty_ekko, gwa_ekko TYPE gty_ekko. DATA:git_fcat TYPE lvc_t_fcat, gwa_fcat LIKE LINE OF git_fcat, gwa_layout TYPE lvc_s_layo, gwa_glay TYPE lvc_s_glay. DATA:gwa_edit TYPE lvc_s_styl, git_edit TYPE lvc_t_styl. START-OF-SELECTION. SELECT ebeln verkf INTO CORRESPONDING FIELDS OF TABLE git_ekko FROM ekko UP TO 10 ROWS. gwa_edit-fieldname = 'EBELN'. gwa_edit-style = cl_gui_alv_grid=>mc_style_disabled. INSERT gwa_edit INTO TABLE git_edit. gwa_edit-fieldname = 'VERKF'. gwa_edit-style = cl_gui_alv_grid=>mc_style_disabled. INSERT gwa_edit INTO TABLE git_edit. INSERT LINES OF git_edit INTO TABLE gwa_ekko-style. * 将除第三行之外的所有行都设置成不能输入 DO 10 TIMES. IF sy-index <> 3. MODIFY git_ekko INDEX sy-index FROM gwa_ekko TRANSPORTING style. ENDIF. ENDDO. PERFORM frm_set_catalog. gwa_layout-zebra = 'X'. gwa_layout-sel_mode = 'A'. gwa_layout-cwidth_opt = 'X'. gwa_layout-edit = 'X'. "将整个ALV设置成可编辑 gwa_layout-stylefname = 'STYLE'. "指定保存编辑状态的字段名 gwa_glay-edt_cll_cb = 'X'. CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY_LVC' EXPORTING i_callback_program = sy-repid is_layout_lvc = gwa_layout it_fieldcat_lvc = git_fcat * i_grid_settings = gwa_glay TABLES t_outtab = git_ekko[] EXCEPTIONS program_error = 1 OTHERS = 2. IF sy-subrc = 0. ENDIF. *&---------------------------------------------------------------------* *& Form FRM_SET_CATALOG *&---------------------------------------------------------------------* * text *----------------------------------------------------------------------* * --> p1 text * <-- p2 text *----------------------------------------------------------------------* FORM frm_set_catalog . DATA:l_pos TYPE i VALUE 1. CLEAR: l_pos. l_pos = l_pos + 1. gwa_fcat-coltext = 'PO'. gwa_fcat-scrtext_l = 'PO'. gwa_fcat-scrtext_m = 'PO'. gwa_fcat-scrtext_s = 'PO'. gwa_fcat-fieldname = 'EBELN'. gwa_fcat-col_pos = l_pos. gwa_fcat-outputlen = '10'. APPEND gwa_fcat TO git_fcat. l_pos = l_pos + 1. gwa_fcat-coltext = 'PO item'. gwa_fcat-scrtext_l = 'PO item'. gwa_fcat-scrtext_m = 'PO item'. gwa_fcat-scrtext_s = 'PO item'. gwa_fcat-fieldname = 'VERKF'. gwa_fcat-col_pos = l_pos. gwa_fcat-outputlen = '20'. APPEND gwa_fcat TO git_fcat. ENDFORM.
显示：
以上。