OO ALV 常用功能简介
目录
OO ALV 常用功能简介... 1
一、所用类：... 2
二、效果图：... 2
单击... 2
双击... 2
F4帮助... 3
编辑某单元格并校验... 3
三、实现过程：... 3
1、 创建一个屏幕9001，不需要画任何控件
2、 定义数据：... 3
3、 获取显示数据：... 4
4、 alv 显示数据：... 4
一、所用类：
cl_gui_alv_grid
cl_gui_docking_container
二、效果图：
执行：
单击
单击航线单元格：
双击
双击连接号码单元格：
F4帮助
航班单元格上F4或点击 后面的小按钮
（本功能在设置字段样式时实现DEFINE mac_fieldlog.
"设置参考表和参考字段，为了提供搜索帮助
wa_fieldcatalog-ref_table = &4. "参考表
wa_fieldcatalog-ref_field = &5. "参考字段
编辑某单元格并校验
修改价格后随便点击某个按钮或者双击某个字段，触发：handle_data_changed
三、实现过程：
1、 创建一个屏幕9001，不需要画
2、 定义数据：
*&---------------------------------------------------------------
ALV 全局变量
*&---------------------------------------------------------------
DATA: g_alv_grid TYPE REF TO cl_gui_alv_grid,"ALV控件
alv_ctner TYPE REF TO cl_gui_docking_container.
DATA: wa_fieldcatalog TYPE lvc_s_fcat, "显示数据列内表工作区域
it_fieldcatalog TYPE lvc_t_fcat. "显示数据列内表
DATA: g_event TYPE REF TO alv_event_receiver.
*&---------------------------------------------------------------
*& 全局变量
*&---------------------------------------------------------------
DATA:
BEGIN OF str_spfli,
checkbox TYPE char1, "复选框
carrid TYPE sflight-carrid , "航线承运人ID
connid TYPE sflight-connid , "航班连接 Id
fldate TYPE sflight-fldate , "航班日期
price TYPE sflight-price , "航空运费
END OF str_spfli.
DATA:
g_it_show LIKE TABLE OF str_spfli WITH KEY checkbox carrid.
g_wa_show LIKE str_spfli.
3、 获取显示数据：
"获取数据
SELECT carrid
connid
fldate
price
FROM sflight INTO CORRESPONDING FIELDS OF TABLE g_it_show.
4、 显示数据：
BEFORE OUTPUT.
MODULE STATUS_9001.
"alv 显示数据
MODULE MDL_ALV_SHOW.
*&---------------------------------------------------------------
MDL_ALV_SHOW output.
PERFORM zform_alv_show.
*&---------------------------------------------------------------
zform_alv_show .
DATA: l_style TYPE i,
ls_layout TYPE lvc_s_layo,
is_stable TYPE lvc_s_stbl,
l_disvariant TYPE disvariant.
* 屏幕初始化
IF alv_ctner IS INITIAL.
CREATE OBJECT alv_ctner
EXPORTING
repid = sy-repid
dynnr = '9001'
* side = cl_gui_docking_container=>dock_at_right ”ALV贴屏幕右边，从屏幕右边开始算宽度
side = cl_gui_docking_container=>dock_at_left "ALV贴屏幕左边，从左边算屏幕宽度，
extension = 900 "屏幕宽度
style = cl_gui_control=>ws_child "可选参数，设置ALV是否可用手动拖动大小
EXCEPTIONS
cntl_error = 1
cntl_system_error = 2
create_error = 3
lifetime_error = 4
lifetime_dynpro_dynpro_link = 5
OTHERS = 6.
IF sy-subrc <> 0.
MESSAGE s001(00) WITH '屏幕初始化失败'.
LEAVE LIST-PROCESSING.
ENDIF.
*添加自定义工具条
PERFORM frm_set_alv_toolbar.
*
CREATE OBJECT g_alv_grid
EXPORTING
i_parent = alv_ctner.
*构建显示字段样式
PERFORM frm_build_fieldcat.
"Set/Reset Ready for Input Status
CALL METHOD g_alv_grid->set_ready_for_input
EXPORTING
i_ready_for_input = 1.
* layout 设定样式
CLEAR ls_layout.
ls_layout-cwidth_opt = 'X'. "优化列宽
CLEAR l_disvariant.
l_disvariant-report = sy-repid. "当前程序
* event 绑定事件
CREATE OBJECT g_event.
"自定义工具条
SET HANDLER g_event->toolbar FOR g_alv_grid.
"数据修改事件
HANDLER g_event->handle_data_changed FOR g_alv_grid.
单击某一单元格事件
SET HANDLER g_event->handle_cell_click FOR g_alv_grid.
用户点击工具条上按钮触发的事件
SET HANDLER g_event->handle_user_command FOR g_alv_grid.
双击某一单元格事件
SET HANDLER g_event->handle_double_click FOR g_alv_grid.
"以下两个方法达到的效果是：光标离开正在编辑的单元格时，
就触发了handle_data_changed
"如果不注释掉以下两个方法，
则只有执行下一操作时才会触发handle_data_changed，比如点保存、删除
CALL METHOD g_alv_grid->register_edit_event
EXPORTING
i_event_id = cl_gui_alv_grid=>mc_evt_modified.
CALL METHOD g_alv_grid->register_edit_event
EXPORTING
i_event_id = cl_gui_alv_grid=>mc_evt_enter.
* "显示内表数据
CALL METHOD g_alv_grid->set_table_for_first_display
EXPORTING
is_layout = ls_layout
is_variant = l_disvariant
it_toolbar_excluding = gt_tools
CHANGING
it_fieldcatalog = it_fieldcatalog[]
it_outtab = g_it_show[].
ELSE.
"冲销设置tcode 为 RELOAD，防止因为原来的tcode影响程序执行
CALL METHOD cl_gui_cfw=>set_new_ok_code
EXPORTING
new_code = 'RELOAD'.
"ALV 控制：刷新稳定性 按行刷新，可选参数
CLEAR is_stable.
is_stable-col = 'X'.
"刷新
CALL METHOD g_alv_grid->refresh_table_display
EXPORTING
is_stable = is_stable
i_soft_refresh = 'X'.
"提交
CALL METHOD cl_gui_cfw=>flush.
ENDIF.
ENDFORM. " ZFORM_ALV_SHOW
其中：
添加工具条上常用按钮
frm_set_alv_toolbar .
REFRESH gt_tools[].
"你也可以删除标准的功能按钮
APPEND cl_gui_alv_grid=>mc_fc_check TO gt_tools.
APPEND cl_gui_alv_grid=>mc_fc_loc_cut TO gt_tools.
APPEND cl_gui_alv_grid=>mc_fc_loc_copy TO gt_tools.
APPEND cl_gui_alv_grid=>mc_fc_loc_copy_row TO gt_tools.
APPEND cl_gui_alv_grid=>mc_fc_loc_delete_row TO gt_tools.
APPEND cl_gui_alv_grid=>mc_fc_loc_insert_row TO gt_tools.
APPEND cl_gui_alv_grid=>mc_fc_loc_move_row TO gt_tools.
APPEND cl_gui_alv_grid=>mc_fc_loc_paste TO gt_tools.
APPEND cl_gui_alv_grid=>mc_fc_loc_paste_new_row TO gt_tools.
APPEND cl_gui_alv_grid=>mc_fc_sum TO gt_tools.
APPEND cl_gui_alv_grid=>mc_fc_info TO gt_tools.
APPEND cl_gui_alv_grid=>mc_fc_refresh TO gt_tools.
APPEND cl_gui_alv_grid=>mc_fc_graph TO gt_tools.
APPEND cl_gui_alv_grid=>mc_fc_loc_append_row TO gt_tools.
APPEND cl_gui_alv_grid=>mc_fc_loc_undo TO gt_tools.
ENDFORM. " FRM_SET_ALV_TOOLBAR
设置显示字段和其参考字段
DEFINE mac_fieldlog.
* g_pos = g_pos + 1. "第几列
* wa_fieldcatalog-col_pos = g_pos. "列
wa_fieldcatalog-fieldname = &1. "字段名称
* wa_fieldcatalog-coltext = &2. "显示名称，跟reptext效果基本相同
wa_fieldcatalog-reptext = &2.
wa_fieldcatalog-outputlen = &3. "显示长度
"设置参考表和参考字段，为了提供搜索帮助
wa_fieldcatalog-ref_table = &4. "参考表
wa_fieldcatalog-ref_field = &5. "参考字段
"设置复选框可编辑
if &1 eq 'CHECKBOX'.
wa_fieldcatalog-checkbox = 'X'.
wa_fieldcatalog-edit = 'X'.
endif.
"设置 价格PRICE字段 可修改
if &1 eq 'PRICE'.
wa_fieldcatalog-edit = 'X'.
endif.
"设置 航线承运人字段 CARRID 为热键
if &1 eq 'CARRID'.
wa_fieldcatalog-hotspot = 'X'.
endif.
append wa_fieldcatalog to it_fieldcatalog.
clear wa_fieldcatalog.
END-OF-DEFINITION.
FORM frm_build_fieldcat .
'CHECKBOX' '选择' '' ' ' ' ' .
'CARRID' '航线承运人' '' 'SFLIGHT' 'CARRID'.
'CONNID' '航班数量' '' 'SFLIGHT' 'CONNID' .
mac_fieldlog 'FLDATE' '国家' '' 'SFLIGHT' 'FLDATE '. "最后两个字段 参考表内字段，可以作为帮助
mac_fieldlog 'PRICE' '起飞城市' '' 'SFLIGHT' 'PRICE' .
ENDFORM. " FRM_BUILD_FIELDCAT
事件的定义
* CLASS ALV_EVENT_RECEIVER DEFINITION
*----------------------------------------------------------------
CLASS alv_event_receiver DEFINITION.
PUBLIC SECTION.
"添加工具条
METHODS toolbar FOR EVENT toolbar OF cl_gui_alv_grid
IMPORTING
e_object
e_interactive.
"子都修改时触发
METHODS handle_data_changed FOR EVENT data_changed OF cl_gui_alv_grid
IMPORTING
er_data_changed.
"某字段设置热键后，单击此单元格时触发
METHODS handle_cell_click FOR EVENT hotspot_click OF cl_gui_alv_grid
IMPORTING
e_row_id
e_column_id
es_row_no.
"双击时触发
METHODS handle_double_click FOR EVENT double_click OF cl_gui_alv_grid
IMPORTING
e_row
e_column
es_row_no.
"按F1时触发
METHODS handle_onf1 FOR EVENT onf1 OF cl_gui_alv_grid
IMPORTING
e_fieldname
es_row_no
er_event_data.
"当用户按屏幕上按钮时触发
METHODS handle_user_command FOR EVENT user_command OF cl_gui_alv_grid
IMPORTING
e_ucomm.
.
ENDCLASS. "alv_event_receiver DEFINITION
*&---------------------------------------------------------------------*
*& Class (Implementation) ALV_EVENT_RECEIVER
*&---------------------------------------------------------------------*
CLASS alv_event_receiver IMPLEMENTATION.
METHOD handle_data_changed.
DATA:
l_it_data TYPE lvc_t_modi,
l_wa_data LIKE LINE OF l_it_data.
DATA: l_price_old TYPE string,
l_price_new TYPE string,
l_msg TYPE string.
l_it_data = er_data_changed->mt_mod_cells.
LOOP AT er_data_changed->mt_mod_cells INTO l_wa_data WHERE fieldname = 'PRICE'.
READ TABLE g_it_show INTO g_wa_show INDEX l_wa_data-row_id.
IF sy-subrc = 0.
l_price_old = g_wa_show-price .
l_price_new = l_wa_data-value .
IF l_price_old <> l_price_new.
CONCATENATE '价格由' l_price_old '改为' l_price_new INTO l_msg.
MESSAGE l_msg TYPE 'I'.
ENDIF.
ENDIF.
ENDLOOP.
ENDMETHOD. "handle_data_changed
METHOD toolbar.
DATA: ls_toolbar TYPE stb_button.
CLEAR ls_toolbar.
MOVE 3 TO ls_toolbar-butn_type. "分隔符
APPEND ls_toolbar TO e_object->mt_toolbar.
CLEAR ls_toolbar.
MOVE 'SEL_ALL' TO ls_toolbar-function. "添加两个按钮 全选 和 取消全选
MOVE icon_select_all TO ls_toolbar-icon.
MOVE '全选' TO ls_toolbar-quickinfo.
MOVE ' ' TO ls_toolbar-disabled.
APPEND ls_toolbar TO e_object->mt_toolbar.
CLEAR ls_toolbar.
MOVE 'CAN_ALL' TO ls_toolbar-function.
MOVE icon_deselect_all TO ls_toolbar-icon.
MOVE '全部取消 ' TO ls_toolbar-quickinfo.
MOVE ' ' TO ls_toolbar-disabled.
APPEND ls_toolbar TO e_object->mt_toolbar.
CLEAR ls_toolbar.
MOVE 0 TO ls_toolbar-butn_type. "按钮
MOVE 'DELETE' TO ls_toolbar-function. "功能码
MOVE 'DELETE' TO ls_toolbar-text. "显示名称
MOVE icon_cancel TO ls_toolbar-icon. "图标
MOVE '删除选中行' TO ls_toolbar-quickinfo. "鼠标停留时的提示信息
MOVE ' ' TO ls_toolbar-disabled. "可用
APPEND ls_toolbar TO e_object->mt_toolbar.
ENDMETHOD. "toolbar
METHOD handle_cell_click.
"获取单击字段
DATA: l_msg TYPE string,
l_wa_click LIKE LINE OF g_it_show,
l_row TYPE string,
l_field TYPE string.
l_row = es_row_no-row_id. "选中行
l_field = e_column_id. "选中的字段
READ TABLE g_it_show INTO l_wa_click INDEX es_row_no-row_id.
IF sy-subrc = 0.
"得到所单击值
CONCATENATE '您选中第' l_row '行，字段为：' l_field '，选中值为' l_wa_click-carrid INTO l_msg.
MESSAGE l_msg TYPE 'I'.
ENDIF.
ENDMETHOD. "handle_cell_click
METHOD handle_double_click.
"获取单击字段
DATA: l_msg TYPE string,
l_wa_click LIKE LINE OF g_it_show,
l_row TYPE string,
l_field TYPE string.
l_field = e_column-fieldname. "选中行
l_row = es_row_no-row_id. "选中的字段
READ TABLE g_it_show INTO l_wa_click INDEX es_row_no-row_id .
IF sy-subrc = 0.
"得到所单击值
CONCATENATE '您选中第' l_row '行，字段为：' l_field '，选中值为:' INTO l_msg.
CASE l_field.
WHEN 'CONNID'.
CONCATENATE l_msg l_wa_click-connid INTO l_msg.
MESSAGE l_msg TYPE 'I'.
WHEN 'FLDATE'.
CONCATENATE l_msg l_wa_click-fldate INTO l_msg.
MESSAGE l_msg TYPE 'I'.
ENDCASE.
ENDIF.
ENDMETHOD. "handle_DOUBLE_CLICK
METHOD handle_onf1.
ENDMETHOD. "handle_ONF1
*&---------------------------------------------------------------------------&*
*& *
*& HANDLE_USER_COMMAND *
*&---------------------------------------------------------------------------&*
METHOD handle_user_command.
REFRESH:lt_cols, lt_rows.
CALL METHOD g_alv_grid->get_selected_rows
IMPORTING
et_index_rows = lt_rows.
CALL METHOD g_alv_grid->get_selected_columns
IMPORTING
et_index_columns = lt_cols.
CALL METHOD cl_gui_cfw=>flush.
CASE e_ucomm.
WHEN 'SEL_ALL'.
LOOP AT g_it_show INTO g_wa_show.
g_wa_show-checkbox = 'X'.
MODIFY g_it_show FROM g_wa_show.
ENDLOOP.
WHEN 'CAN_ALL'.
LOOP AT g_it_show INTO g_wa_show.
g_wa_show-checkbox = ' '.
MODIFY g_it_show FROM g_wa_show.
ENDLOOP.
WHEN 'DELETE'.
LOOP AT g_it_show INTO g_wa_show WHERE checkbox IS NOT INITIAL.
DELETE TABLE g_it_show FROM g_wa_show.
ENDLOOP.
WHEN OTHERS.
ENDCASE.
CALL METHOD cl_gui_cfw=>set_new_ok_code
EXPORTING
new_code = 'RELOAD'.
ENDMETHOD. "HANDLE_USER_COMMAND
ENDCLASS. "ALV_EVENT_RECEIVER
关于删除标准按钮，我也debug的
然后可以根据功能码或者quickinfo删除