topgp combobox动态下拉列表
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用过TOPGP的都知道，画面上的下拉列表是写死在画面档上的，每个程序都要手动去维护一遍，很恶心很麻烦，
鼎捷也发现了这个问题，在T100上面就全部使用了动态的方式显示，具体的操作方式就是可以在前端维护一个基础档，然后程序抓取基础档上的资料动态显示到下拉列表中。这样做确实是方便了很多。其实TOPGP也是支持这种写法的，有天无聊我就自己开发了一个版本，使用起来确实挺方便，发出来给交流一下！
一，设计基础资料表
这个不多说，直接贴上表结构
1：单头档
ALTER TABLE DS.TC_GC_FILE
DROP PRIMARY KEY CASCADE;
DROP TABLE DS.TC_GC_FILE CASCADE CONSTRAINTS;
CREATE TABLE DS.TC_GC_FILE
(
TC_GC01 NUMBER(10) NOT NULL, ---分类编码
TC_GC02 VARCHAR2(80 BYTE), ---说明
TC_GC03 VARCHAR2(250 BYTE) ---备注
)
TABLESPACE DBS1
PCTUSED 0
PCTFREE 10
INITRANS 1
MAXTRANS 255
STORAGE (
INITIAL 128K
NEXT 1M
MINEXTENTS 1
MAXEXTENTS UNLIMITED
PCTINCREASE 0
BUFFER_POOL DEFAULT
)
LOGGING
NOCOMPRESS
NOCACHE
NOPARALLEL
MONITORING;
CREATE UNIQUE INDEX DS.TC_GC_PK ON DS.TC_GC_FILE
(TC_GC01)
LOGGING
TABLESPACE DBS1
PCTFREE 10
INITRANS 2
MAXTRANS 255
STORAGE (
INITIAL 64K
NEXT 1M
MINEXTENTS 1
MAXEXTENTS UNLIMITED
PCTINCREASE 0
BUFFER_POOL DEFAULT
)
NOPARALLEL;
DROP SYNONYM ODS.TC_GC_FILE;
CREATE SYNONYM ODS.TC_GC_FILE FOR DS.TC_GC_FILE;
DROP SYNONYM DSALL.TC_GC_FILE;
CREATE SYNONYM DSALL.TC_GC_FILE FOR DS.TC_GC_FILE;
ALTER TABLE DS.TC_GC_FILE ADD (
CONSTRAINT TC_GC_PK
PRIMARY KEY
(TC_GC01)
USING INDEX
TABLESPACE DBS1
PCTFREE 10
INITRANS 2
MAXTRANS 255
STORAGE (
INITIAL 64K
NEXT 1M
MINEXTENTS 1
MAXEXTENTS UNLIMITED
PCTINCREASE 0
));
GRANT INDEX, SELECT ON DS.TC_GC_FILE TO ODS;
GRANT INDEX, SELECT ON DS.TC_GC_FILE TO PUBLIC;
GRANT DELETE, INSERT, SELECT, UPDATE ON DS.TC_GC_FILE TO TIPTOPGP;
2：单身档
ALTER TABLE DS.TC_GD_FILE
DROP PRIMARY KEY CASCADE;
DROP TABLE DS.TC_GD_FILE CASCADE CONSTRAINTS;
CREATE TABLE DS.TC_GD_FILE
(
TC_GD01 NUMBER(10) NOT NULL, ---编码
TC_GD02 VARCHAR2(40 BYTE) NOT NULL, ---编码值
TC_GD03 VARCHAR2(250 BYTE), ---说明
TC_GD04 NUMBER(5) --显示顺序
)
TABLESPACE DBS1
PCTUSED 0
PCTFREE 10
INITRANS 1
MAXTRANS 255
STORAGE (
INITIAL 128K
NEXT 1M
MINEXTENTS 1
MAXEXTENTS UNLIMITED
PCTINCREASE 0
BUFFER_POOL DEFAULT
)
LOGGING
NOCOMPRESS
NOCACHE
NOPARALLEL
MONITORING;
CREATE UNIQUE INDEX DS.TC_GD_PK ON DS.TC_GD_FILE
(TC_GD01, TC_GD02)
LOGGING
TABLESPACE DBS1
PCTFREE 10
INITRANS 2
MAXTRANS 255
STORAGE (
INITIAL 64K
NEXT 1M
MINEXTENTS 1
MAXEXTENTS UNLIMITED
PCTINCREASE 0
BUFFER_POOL DEFAULT
)
NOPARALLEL;
DROP SYNONYM ODS.TC_GD_FILE;
CREATE SYNONYM ODS.TC_GD_FILE FOR DS.TC_GD_FILE;
DROP SYNONYM DSALL.TC_GD_FILE;
CREATE SYNONYM DSALL.TC_GD_FILE FOR DS.TC_GD_FILE;
ALTER TABLE DS.TC_GD_FILE ADD (
CONSTRAINT TC_GD_PK
PRIMARY KEY
(TC_GD01, TC_GD02)
USING INDEX
TABLESPACE DBS1
PCTFREE 10
INITRANS 2
MAXTRANS 255
STORAGE (
INITIAL 64K
NEXT 1M
MINEXTENTS 1
MAXEXTENTS UNLIMITED
PCTINCREASE 0
));
GRANT INDEX, SELECT ON DS.TC_GD_FILE TO ODS;
GRANT INDEX, SELECT ON DS.TC_GD_FILE TO PUBLIC;
GRANT DELETE, INSERT, SELECT, UPDATE ON DS.TC_GD_FILE TO TIPTOPGP;
二：添加基础资料维护作业
这个也没什么好说的，开发一个最简单的双档维护程序就行了，贴上一张效果图
三：新增公用函数
这个函数可以在lib/4gl目录下新增，这样每个程序就能自动链接了
我是新增了一个这个函数cl_set_combo_items.4gl程序里面新增了一个函数cl_set_combo，主要用这个函数就行了，直接贴代码
# Prog. Version..: ‘5.25.03-11.07.14(00000)‘ #
#
# Program name...: cl_set_combo_items.4gl
# Descriptions...: 動態設定ComboBox的Item.
# Date & Author..: 03/07/02 by Hiko
# Usage..........: CALL cl_set_combo_items("oea08", "1,2", "Local Order,Export Order")
# Modify.........: No.FUN-640240 06/05/17 Echo 自動執行確認功能
# Modify...... ..: No.FUN-690005 06/09/05 By chen 類型轉換
# Modify.........: No.FUN-6C0017 06/12/13 By jamie 程式開頭增加‘database ds‘
# Modify.........: No.TQC-740146 07/04/24 By Echo 判斷是否背景作業，條件需再加上 g_gui_type
# Modify.........: No.FUN-7C0053 07/12/17 By alex 修改說明only
IMPORT os
DATABASE ds #FUN-6C0017 #FUN-7C0053
GLOBALS "../../config/top.global"
# Descriptions...: 設定ComboBox的Item.
# Date & Author..: 2003/07/02 by Hiko
# Input Parameter: ps_field_name STRING ComboBox所對應的欄位名稱
# ps_values STRING Item所對應的儲存值字串(中間以逗點分隔)
# ps_items SMALLINT Item字串(中間以逗點分隔)
# Return Code....: void
# Modify.........: MOD-520002 alex 刪除傳入值的空白尾碼
# Modify.........: MOD-540134 alex 同上
FUNCTION cl_set_combo_items(ps_field_name, ps_values, ps_items)
DEFINE ps_field_name,ps_values,ps_items STRING
DEFINE lcbo_target ui.ComboBox
DEFINE lst_values,lst_items base.StringTokenizer
DEFINE ls_msg LIKE ze_file.ze03 #No.FUN-690005 VARCHAR(100)
WHENEVER ERROR CALL cl_err_msg_log
#FUN-640240
#IF g_bgjob = ‘Y‘ THEN
IF g_bgjob = ‘Y‘ AND g_gui_type NOT MATCHES "[13]" THEN #TQC-740146
RETURN
END IF
#END FUN-640240
#MOD-540134
LET ps_field_name=ps_field_name.trim()
#MOD-520002
LET ps_values=ps_values.trim()
LET ps_items=ps_items.trim()
LET lcbo_target = ui.ComboBox.forName(ps_field_name)
IF lcbo_target IS NULL THEN
SELECT ze03 INTO ls_msg FROM ze_file WHERE ze01 = ‘lib-031‘ AND ze02 = g_lang
CALL cl_err(ps_field_name, "lib-031", 1)
RETURN
ELSE
CALL lcbo_target.clear()
END IF
LET lst_values = base.StringTokenizer.create(ps_values, ",")
LET lst_items = base.StringTokenizer.create(ps_items, ",")
WHILE lst_values.hasMoreTokens()
CALL lcbo_target.addItem(lst_values.nextToken(), lst_items.nextToken())
END WHILE
END FUNCTION
FUNCTION cl_set_combo(p_field,p_gc01)
DEFINE p_field LIKE type_file.chr1000, #No.FUN-690005 VARCHAR(10)
p_gc01 LIKE type_file.num10 #No.FUN-690005 VARCHAR(5) #No.FUN-690103
DEFINE l_sql STRING
DEFINE l_value1 LIKE type_file.chr100
DEFINE l_value2 LIKE type_file.chr100
DEFINE lcbo_target ui.ComboBox
DEFINE ls_msg LIKE ze_file.ze03 #No.FUN-690005 VARCHAR(100)
WHENEVER ERROR CALL cl_err_msg_log
IF g_bgjob = ‘Y‘ AND g_gui_type NOT MATCHES "[13]" THEN #TQC-740146
RETURN
END IF
#LET p_field = p_field.trim()
LET lcbo_target = ui.ComboBox.forName(p_field)
IF lcbo_target IS NULL THEN
SELECT ze03 INTO ls_msg FROM ze_file WHERE ze01 = ‘lib-031‘ AND ze02 = g_lang
CALL cl_err(p_field, "lib-031", 1)
RETURN
ELSE
CALL lcbo_target.clear()
END IF
LET l_sql = " SELECT tc_gd02,tc_gd02||‘:‘||tc_gd03 FROM tc_gd_file WHERE tc_gd01 = ",p_gc01,
" order by tc_gd04,tc_gd02"
PREPARE eepc100_b_ecamuc_pd FROM l_sql
DECLARE eepc100_b_ecamuc_cs CURSOR FOR eepc100_b_ecamuc_pd
FOREACH eepc100_b_ecamuc_cs INTO l_value1,l_value2
CALL lcbo_target.addItem(l_value1,l_value2)
END FOREACH
END FUNCTION
四：调用函数
调用的时候就特别简单了，直接在CALL cl_ui_init() 下面CALL cl_set_combo(‘画面党上的命名’,编码) ，如下图
以上，就是制作动态下拉列表的全部步骤，这些做完了，就可以随心所欲的在前端维护下拉列表值了，再也不用去改画面档了！
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