ALV单元格在可输入状态下，金额和数量类型的字段小数点的位置会发生错误，数量是quan类型，金额是curr类型，如下：
错误情况如下：qty输入66，结果显示0.066小数点提前3位，差1000倍，price输入7，结果显示0.07，小数点提前两位，差100倍。
方法如下：
1、对于货币字段，catalog中再添加一个“指定数据类型”的属性datatype，如下：
wa_fieldcat-datatype = ‘CURR‘ . " 指定数据类型
这样在修改数据并保存时，才能将数据保持原样，否则输入的数据会自动将小数点提前2位；
2、对于数量字段，也要添加一个“指定数据类型”的属性，才能保持数据的正确性，如下：
wa_fieldcat-datatype = ‘QUAN‘ . " 指定数据类型
wa_fieldcat-inttype = ‘C‘ . "这个是指定字段的类型为C
完整代码：
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REPORT ztest_alv_lvc_edit.
TYPES:BEGIN OF gty_ekko,
ebeln TYPE ekko-ebeln,
menge TYPE ekpo-menge,
netwr TYPE ekpo-netwr,
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.
START-OF-SELECTION.
SELECT ebeln
menge
netwr
INTO CORRESPONDING FIELDS OF TABLE git_ekko
FROM ekpo
UP TO 10 ROWS.
PERFORM frm_set_catalog.
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.
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-edit = ‘X‘.
gwa_fcat-outputlen = ‘10‘.
APPEND gwa_fcat TO git_fcat.
l_pos = l_pos + 1.
gwa_fcat-coltext = ‘Qty‘.
gwa_fcat-scrtext_l = ‘Qty‘.
gwa_fcat-scrtext_m = ‘Qty‘.
gwa_fcat-scrtext_s = ‘Qty‘.
gwa_fcat-fieldname = ‘MENGE‘.
gwa_fcat-datatype = ‘QUAN‘ . "指定该字段为数量
gwa_fcat-inttype = ‘C‘ . "指定该字段类型为C
gwa_fcat-edit = ‘X‘.
gwa_fcat-col_pos = l_pos.
gwa_fcat-outputlen = ‘10‘.
APPEND gwa_fcat TO git_fcat.
l_pos = l_pos + 1.
gwa_fcat-coltext = ‘‘.
gwa_fcat-scrtext_l = ‘Price‘.
gwa_fcat-scrtext_m = ‘Price‘.
gwa_fcat-scrtext_s = ‘Price‘.
gwa_fcat-fieldname = ‘NETWR‘.
gwa_fcat-datatype = ‘CURR‘ . "指定该字段为金额
gwa_fcat-edit = ‘X‘.
gwa_fcat-col_pos = l_pos.
gwa_fcat-outputlen = ‘10‘.
APPEND gwa_fcat TO git_fcat.
ENDFORM.
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测试结果：
以上。
◆◆0[问题解决]ALV可输入状态下输入金额/数量字段小数位数提前的问题
原文：https://www.cnblogs.com/lvdong18847870057/p/12539485.html