大家好，我是架构君，一个会写代码吟诗的架构师。今天说一说ALV[他律],希望能够帮助大家进步!!!
Function ALV.. 5
Layout结构... 5
Fieldcat结构... 7
ALV相关函数... 9
简单实例... 13
Fieldcat动态创建... 15
通过编程创建... 15
通过REUSE_ALV_FIELDCATALOG_MERGE函数创建... 18
自定义ALV工具条... 20
快速拷贝GUI Status. 23
ALV事件... 24
所支持事件... 25
工具条预置按钮回调出口IT_EVENT_EXIT. 26
颜色... 27
行颜色... 27
列颜色... 30
单元格颜色... 31
可编辑... 33
PushButton
Function ALV
ALV：SAPListViewer
ALV显示格式分为GRID及LIST两种模式，一个以网格显示，另一个以表格显示，两者都有工具栏稍有不同
Layout结构
Layout主要用于设置ALV整体输出格式，为ALV可选项参数。属于类型池 TYPE-POOLS:SLIS
TYPE-POOLS:slis. DATA: layout TYPE slis_layout_alv.
Layout结构所定义的所有字段如下（各字段详细使用说明，可参考REUSE_ALV_GRID_DISPLAY的 is_layout参数文档说明）：
代码语言：javascript复制 no_colhead(1) type c, " no headings不显示列标题行
no_hotspot(1) type c, " headings not as hotspot
zebra(1) type c, " striped pattern斑马线显示，颜色隔行交替显示
no_vline(1) type c, " columns separated by space不显示垂直网格线
no_hline(1) type c, "rows separated by space B20K8A0N5D不显示水平网格线
cell_merge(1) type c, " not suppress field replication ALV单元格中的内容能够复制到剪贴板
edit(1) type c, " for grid onlyALV是否可编辑，注意只对Grid模式有效，对List模式无效
edit_mode(1) type c, " for grid only
numc_sum(1) type c, " totals for NUMC-Fields possib.
no_input(1) type c, " only display fields
f2code like sy-ucomm, "gs_layout-f2code = '&ETA'.设置触发弹出详细信息窗口的功能码，这里是双击(&ETA)就可以弹出详细窗口，而不需要通过右键菜单
reprep(1) type c, " report report interface active
no_keyfix(1) type c, " do not fix keycolumns
expand_all(1) type c, " Expand all positions
no_author(1) type c, " No standard authority check
* PF-status
def_status(1) type c, " default status space or 'A'
item_text(20) type c, " Text for item button
countfname type lvc_fname,
* Display options
colwidth_optimize(1) type c, ALV网格（单元格）宽度设置为自动最优化，按输出内容宽度自动调整
no_min_linesize(1) type c, " line size = width of the list
min_linesize like sy-linsz, " if initial min_linesize = 80
max_linesize like sy-linsz, " Default 250
window_titlebar like sy-title,
no_uline_hs(1) type c,
* Exceptions
lights_fieldname type slis_fieldname," fieldname for exception列显示为红绿灯
lights_tabname type slis_tabname, " fieldname for exception
lights_rollname like dfies-rollname," rollname f. exceptiondocu
lights_condense(1) type c, " fieldname for exception
* Sums
no_sumchoice(1) type c, " no choice for summing up
no_totalline(1) type c, " no total line
no_subchoice(1) type c, " no choice for subtotals
no_subtotals(1) type c, " no subtotals possible
no_unit_splitting type c, " no sep. tot.lines by inh.units
totals_before_items type c, " diplay totals before the items统计行会在数据行前面显示
totals_only(1) type c, " show only totals只显示合计
totals_text(60) type c, " text for 1st col. in total line合计第一列文本
subtotals_text(60) type c, " text for 1st col. in subtotals
* Interaction交互
box_fieldname type slis_fieldname, " fieldname for checkbox指定数据内表中哪列以选择按钮形式显示（首列前可按下或弹上来的按钮），ALV最左上角会出现全选按钮
box_tabname type slis_tabname," tabname for checkbox
box_rollname like dd03p-rollname," rollname for checkbox
expand_fieldname type slis_fieldname, " fieldname flag 'expand'
hotspot_fieldname type slis_fieldname, " fieldname flag hotspot
confirmation_prompt, " confirm. prompt when leaving当退出
