1、如何複製graph風格的datawindow中的圖形到剪切板?
答:dw_1.clipbord("gr_1")
2、如何使用datawindow的查詢模式?
答:dw_1.Object.DataWindow.QueryMode='yes'將datawindow改變爲查詢模式後,接收用戶的輸入,再使用一下代碼獲取結果:
dw_1.accepttext()
dw_1.retrieve()
3、如何控制打印橫向:
dw_control. O B J E C T.datawindow.print.orientation= 1
29、如何進行預覽:
dw_control. O B J E C T.datawindow.print.preview = "yes"
4、如何將pb9.0 的datawindow轉化爲pb 8.0版本的datawindow?
答:edit source 將release 9;改爲release 8;
並刪除以下內容:
print.printername=""
print.canusedefaultprinter=yes
print.cliptext=no print.overrideprintjob=no
hidegrayline=no
encodeselflinkargs="1"
export.xml(headgroups="1" includewhitespace="0" metadatatype=0 savemetadata=0 )
import.xml()
export.pdf(method=0 distill.custompostscript="0" xslfop.print="0" )
5、保存datawindow數據到excel中
// ... Init docname
// ... GetFileOpenName or any other method
if dw_1.SaveAs(docname, HTMLTable!, True) = -1 then
MessageBox("Warning", "Unable to export data. Error writing to file!", Exclamation!)
return
end if
// Convert HTML file to Excel native format
OLEObject excel
excel = CREATE OLEObject
if excel.ConnectToObject(docname) = 0 then
excel.application.DisplayAlerts = FALSE
excel.application.workbooks(1).Parent.Windows(excel.application.workbooks(1).Name).Visible = True
excel.application.workbooks(1).saveas(docname, 39)
excel.application.workbooks(1).close()
end if
DESTROY excel
6、怎樣將數據窗口(free格式)中的內容轉成word文檔
答:給你兩個函數:
(1)、輔助函數
integer f_cncharnum (string aString);
//函數名: f_cncharnum
//用途: 返回一個字符串中漢字的個數
//輸入: aString - string, 給定的字符串
//返回值: li_num - Integer, 給定的字符串中漢字的個數
//注意: 1. 此方法基於漢字的國標漢字庫區位編碼的有效性,不符合此編碼的系統此函數無效!
// 2. 若漢字串含有非漢字字符,如圖形符號或ASCII碼,則這些非漢字字符將保持不變.
//例如: li_ret = f_cncharnum("擺渡人ferryman") li_ret = 3
string ls_ch //臨時單元
string ls_SecondSecTable //存放所有國標二級漢字讀音
integer li_num = 0 //返回值
integer i,j
For i = 1 to Len(aString)
ls_ch = Mid(aString,i,1)
If Asc(ls_ch) >= 128 then //是漢字
li_num++
i = i+1
End if
Next
Return li_num
end function
---------------------------------------------------------------
(2)、轉到WORD
integer f_outputtoword_new (datawindow adw);
//函數名:f_outputtoword_new
//輸入: adw - datawindow,指定的數據窗口
//返回值: Integer
constant integer ppLayoutBlank = 12
OLEObject ole_ O B J E C T
ole_ O B J E C T = CREATE OLEObject
integer li_ret
li_ret = ole_ O B J E C T.ConnectToObject("","word.application")
IF li_ret <> 0 THEN
//如果Word還沒有打開,則新建。
li_ret = ole_ O B J E C T.ConnectToNewObject("word.application")
if li_ret <> 0 then
MessageBox('OLE錯誤','OLE無法連接!錯誤號:' + string(li_ret))
return 0
end if
ole_ O B J E C T.Visible = True
END IF
long ll_colnum,ll_rownum
constant long wdWord9TableBehavior = 1
constant long wdAutoFitFixed = 0
constant long wdCell = 12
string ls_value
pointer oldpointer
oldpointer = SetPointer(HourGlass!)
string ls_ O B J E C Ts,ls_obj,ls_objs[],ls_objtag[]
long ll_pos,ll_len,ll_num = 0
ls_ O B J E C Ts = trim(adw.Describe('datawindow.Objects'))
do while (pos(ls_ O B J E C Ts,"~t") > 0)
ll_pos = pos(ls_ O B J E C Ts,"~t")
ll_len = ll_pos - 1
ls_obj = left(ls_ O B J E C Ts,ll_len)
if (adw.Describe(ls_obj + '.type') = 'column' or &
adw.Describe(ls_obj + '.type') = 'compute') and &
(adw.Describe(ls_obj + '.band') = 'detail') and (ls_obj <> "asd") then
ll_num += 1
ls_objs[ll_num] = ls_obj
ls_objtag[ll_num] = adw.Describe(ls_obj + '.tag')
end if
ls_ O B J E C Ts = right(ls_ O B J E C Ts,len(ls_ O B J E C Ts) - ll_pos)
loop
//得到數據窗口數據的列數與行數(行數應該是數據行數 + 1)
ll_colnum = ll_num
ll_rownum = adw.rowcount() + 1
ole_ O B J E C T.Documents.Add()
ole_ O B J E C T.ActiveDocument.Tables.Add(ole_ O B J E C T.Selection.Range, ll_rownum, ll_colnum)
string ls_colname
integer i,j,k
for i = 1 to ll_colnum
//得到標題頭的名字
ls_value = ls_objtag
ole_ O B J E C T.Selection.TypeText(ls_value)
for k = 1 to f_cncharnum(ls_value)
ole_ O B J E C T.Selection.TypeBackspace()
next
ole_ O B J E C T.Selection.MoveRight(wdCell)
next
adw.setredraw(false)
ole_ O B J E C T.Selection.MoveLeft(wdCell)
string column_name
for i = 2 to ll_rownum
for j = 1 to ll_colnum
column_name = ls_objs[j]
if adw.Describe(column_name + '.type') = 'column' then
ls_value = adw.Describe("Evaluate('LookupDisplay("+column_name+")',"+string(i - 1)+")")
end if
if adw.Describe(column_name + '.type') = 'compute' then
ls_value = adw.Describe("Evaluate('" + adw.Describe(column_name + '.expression') + "',"+string(i - 1)+")")
end if
ole_ O B J E C T.Selection.MoveRight(wdCell)
ole_ O B J E C T.Selection.TypeText(ls_value)
//for k = 1 to f_cncharnum(ls_value)
//ole_ O B J E C T.Selection.TypeBackspace()
//next
next
next
adw.setredraw(true)
constant long wdFormatDocument = 0
SetPointer(oldpointer)
//保存新建的文檔
if messagebox("保存","文檔已經成功完成,是否保存?",Question!,YesNo!) = 1 then
string docname, named
integer value
value = GetFileSaveName("選擇文件",docname, named, "DOC","Doc Files (*.DOC), *.DOC")
IF value = 1 THEN
ole_ O B J E C T.ActiveDocument.SaveAs(docname, 0,False,"",True,"",False,False,False, False,False)
end if
end if
//斷開OLE連接
Ole_Object.DisConnectObject()
Destroy Ole_Object
return 1
end function
7、字段如何自動換行的同時且自動高度?
答:將數據窗口中相應列的auto horz scroll 爲不選中,選中autosize height
將detail的autosize height選中。在數據窗口retrieve 後調用下面函數即可
uf_set_text(datawindow adw_content,string as_columns,boolean,ab_ignoreblank)
/*************************************************************
describe: 在數據窗口adw_content中,在as_columns中包含的列中插入空格
args: as_columns 要操作的多個列,列間用逗號隔開
*************************************************************/
if (not isvalid(adw_content)) or isnull(as_columns) or len(as_columns)<1 or isnull(ab_ignoreblank) then return -1
n_cst_string lnv_string
string ls_column[] , ls_width ,as_source,as_replaced ,ls_temp
int li_upperbound , li_width , li_column , li_fontWidth, li_counter
long ll_rowcount , ll_row , ll_totalstep
int li_yield
lnv_string.of_parsetoarray(as_columns,',',ls_column)
li_upperbound = upperbound(ls_column)
ll_rowcount = adw_content.rowcount()
if li_upperbound<1 or ll_rowcount<1 then return -1
openwithparm(w_waiting,this)
ib_cancel = false
iw_frame.enabled = false
ll_totalstep = ll_rowcount * li_upperbound
w_waiting.uf_register(ll_totalstep)
for li_column = 1 to li_upperbound
ls_width = adw_content.describe(ls_column[li_column]+".width")
li_width = integer(ls_width)
if ls_width='!' or ls_width='?' or li_width=0 then
continue
end if
//ls_temp = adw_content.describe(ls_column[li_column]+".Font.property { = 'width' }")
//messagebox(ls_column[li_column]+".Font.property { = 'width' }",ls_temp)
//return 1
li_fontwidth = 27
li_counter = li_width / li_fontWidth
for ll_row=1 to ll_rowcount
if ib_cancel then
iw_frame.enabled = true
return 0 //pressed cancel button
end if
as_source = adw_content.getitemstring(ll_row,ls_column[li_column])
as_replaced = uf_insertstring(as_source,li_counter,' ',false)
if as_replaced<>as_source then
adw_content.setitem(ll_row,ls_column[li_column],as_replaced)
end if
w_waiting.uf_stepit()
next
next
close(w_waiting)
iw_frame.enabled = true
return 1
8、如何動態外部創建數據窗口?
答:首先製作一個自己想動態得到的數據窗口,然後將該數據窗口導出,看看語法,這樣你就瞭解了這種數據窗口的生成語法了!
---------------------------------------------------------------
dw_1.create()
可以參考幫助以及srd文件(數據窗口導出文件)
---------------------------------------------------------------
動態數據窗創建原理及實現
在實際應用中,經常需要根據用戶需求來動態創建數據窗,一般方法是這樣的。
在一個window中加入一個數據窗控件,如dw_new,但是該數據窗沒有data O B J E C T,(空白的)
就可以用以下語法來創建:
dw_new.create(ls_syntax,ls_error) // 創建語法,錯誤信息
ls_syntax可以用以下三種方法來形成:
一、動態由sql語法創建:
// 連接到pb的example數據庫
string ls_sql,ls_syntax,ls_error
ls_syntax = 'select * from department'
ls_syntax = sqlca.SyntaxFromSQL(ls_sql,'style(type=grid)',ls_error)
if len(ls_error) >0 then
messagebox('Error','SyntaxFromSQL Error:~r'+ls_error)
else
dw_new.create(ls_syntax,ls_error)
if len(ls_error) >0 then
MessageBox("Error", "Create have these errors: ~r" + ls_error)
else
dw_new.settransOBJECT(sqlca)
dw_new.retrieve()
end if
end if
二、由另一個數據窗的syntax來創建
string ls_syntax,ls_error
ls_syntax = dw_test.describe('datawindow.syntax')
dw_new.create(ls_syntax,ls_error)
if ls_error <> '' then
messagebox('Create Error',ls_error)
else
dw_new.settrans O B J E C T(sqlca)
dw_new.retrieve()
end if
三、讀取psr文件來創建
樣例
string ls_syntax,ls_error,ls_ret
ls_ret = char(13)+char(10) //回車鍵
int li_fileNum
long li_length
li_FileNum = FileOpen("efef.psr",Streammode!, read!, shared!, Replace!)
// 以下是pb5的代碼
if li_filenum >0 then
FileSeek(li_FileNum, 158, FromBeginning!)
li_length = fileRead(li_filenum,ls_syntax)
end if
fileclose(li_filenum)
if li_length = 0 then return
ls_syntax = "release 5;"+ls_ret+ls_syntax
//截掉ls_syntax中的數據部分,5.0以"sparse(names="dept_name?) "作爲參考位置
//6.0以html(作爲參考位置
long pos1,pos2
pos1 = pos(ls_syntax,'sparse(names="',1)
pos2 = pos(ls_syntax,'"',pos1 +16)
ls_syntax = left(ls_syntax,pos1) + mid(ls_syntax,pos1 +1,pos2 - pos1 +1)
dw_New.create(ls_syntax,ls_error)
if ls_error <> '' then
messagebox('Create Error',ls_error)
else
dw_new.settrans O B J E C T(sqlca)
dw_new.retrieve()
end if
global type f_createextenddw from function_ O B J E C T
end type
forward prototypes
global function string f_createextenddw (ref datawindow dw, string cols[])
end prototypes
global function string f_createextenddw (ref datawindow dw, string cols[]);string sql_dw_general, sql_dw_columns_type, sql_dw_headers_conf, sql_dw_columns_conf, ls_errors
int i
long ll_colcount
string ls_colnametype
string ls_colname,ls_coltype
long ll_pos
ll_colcount = upperbound(cols)
//generals
sql_dw_general = "release 8;" &
+ "datawindow(units=0 timer_interval=0 color=16777215 processing=0 print.documentname=" + char(34) + "" + char(34) + " print.orientation = 0 print.margin.left = 110 print.margin.right = 110 print.margin.top = 96 print.margin.bottom = 96 print.paper.source = 0 print.paper.size = 0 print.prompt=no print.buttons=no print.preview.buttons=no )" &
+ "header(height=72 color=" + char(34) + "536870912" + char(34) + " )" &
+ "summary(height=0 color=" + char(34) + "536870912" + char(34) + " )" &
+ "footer(height=0 color=" + char(34) + "536870912" + char(34) + " )" &
+ "detail(height=84 color=" + char(34) + "536870912" + char(34) + " )"
//列及類型
sql_dw_columns_type = "table("
FOR I=1 to ll_colcount
ls_colnametype = trim(cols)
ls_colname = right(ls_colnametype,len(ls_colnametype) - 1)
ls_coltype = left(ls_colnametype,1)
choose case upper(ls_coltype)
case 'C'
ls_coltype = 'char(100)'
case 'D'
ls_coltype = 'date'
case 'N'
ls_coltype = 'decimal(6)'
case else
ls_coltype = 'char(100)'
end choose
//ls_coltype = 'char(100)'
//列及類型
sql_dw_columns_type= sql_dw_columns_type + "column=(type=" +ls_coltype+" updatewhereclause=no name=" + ls_colname + " dbname=" + char(34) + ls_colname + char(34) + " ) "
//列標題
sql_dw_headers_conf = sql_dw_headers_conf + "text(band=header alignment=" + char(34) + "2" + char(34) + " text=" + char(34) + ls_colname + char(34) + " border=" + char(34) + "6" + char(34) + " color=" + char(34) + "16711680" + char(34) + " x=" + char(34) + string( ((i - 1) * 588) + 5) + char(34) + " y=" + char(34) + "4" + char(34) + " height=" + char(34) + "64" + char(34) + " width=" + char(34) + "574" + char(34) + " name=" + ls_colname + "_t font.face=" + char(34) + "Arial" + char(34) + " font.height=" + char(34) + "-10" + char(34) + " font.weight=" + char(34) + "400" + char(34) + " font.family=" + char(34) + "2" + char(34) + " font.pitch=" + char(34) + "2" + char(34) + " font.charset=" + char(34) + "0" + char(34) + " background.mode=" + char(34) + "2" + char(34) + " background.color=" + char(34) + "12632256" + char(34) + " )"
//列屬性
sql_dw_columns_conf = sql_dw_columns_conf + "column(band=detail id=" + string(i) + " alignment=" + char(34) + "1" + char(34) + " tabsequence=" + string(i) + "0 border=" + char(34) + "2" + char(34) + " color=" + char(34) + "0" + char(34) + " x=" + char(34) + string( ((i - 1) * 588) + 5) + char(34) + " y=" + char(34) + "4" + char(34) + " height=" + char(34) + "76" + char(34) + " width=" + char(34) + "579" + char(34) + " format=" + char(34) + "[general]" + char(34) + " name=" + ls_colname + " edit.limit=0 edit.case=any edit.autoselect=yes edit.autohscroll=yes font.face=" + char(34) + "Arial" + char(34) + " font.height=" + char(34) + "-10" + char(34) + " font.weight=" + char(34) + "400" + char(34) + " font.family=" + char(34) + "2" + char(34) + " font.pitch=" + char(34) + "2" + char(34) + " font.charset=" + char(34) + "0" + char(34) + " background.mode=" + char(34) + "1" + char(34) + " background.color=" + char(34) + "536870912" + char(34) + " )"
NEXT
sql_dw_columns_type= sql_dw_columns_type + " )"
sql_dw_columns_conf = sql_dw_columns_conf + "htmltable(border=" + char(34) + "1" + char(34) + " cellpadding=" + char(34) + "0" + char(34) + " cellspacing=" + char(34) + "0" + char(34) + " generatecss=" + char(34) + "no" + char(34) + " nowrap=" + char(34) + "yes" + char(34) + ")"
//MESSAGEBOX('',sql_dw_general + sql_dw_columns_type + sql_dw_headers_conf + sql_dw_columns_conf)
dw.Create(sql_dw_general + sql_dw_columns_type + sql_dw_headers_conf + sql_dw_columns_conf , ls_errors)
return(ls_errors)
end function
9、如何讓datawindow的heade帶區r的內容只打印一次?
答:a、製作兩個數據窗口,第一個有表頭,第二個沒有。
b、用第一個有表頭的數據讀取數據庫中的數據
c、打印有表頭的數據窗口中的第一頁,記住結束行號
d、將從結束行號開始的所有數據複製到第二個數據窗口中
e、打印第二個數據窗口
10、交叉報表在retrieve後,其datawindow的寬度怎麼獲得?
答:[PUBLIC] Function wf_settitle_length 在 w_search_report inherited from window
//----------------------------
// 說明:設置表頭長度
//----------------------------
// 參數1:[reference] datawindow adw_1
// 說明:報表DW
//--------------------------------------
// 返回: (INTEGER) 成功返回1,不成功返回0
Long Row
String List
string token[]
String tag_1
Integer StartPos = 1, EndPos, Top, i = 1 , index = 0
//取出DW中所有的對象存入token[]中
list = adw_1.Describe("datawindow. O B J E C Ts")
EndPos = pos(list, '~t', StartPos)
Do while ( EndPos > 0 )
token = Mid(list, StartPos, EndPos - StartPos)
i ++
StartPos = EndPos + 1
EndPos = pos(list, '~t', StartPos)
LOOP
token = Mid(list, StartPos)
Top = UpperBound(token[])
//找出最後一列
string ls_lastcol
int li_lastpos=0,li_thispos
For i = 1 to Top
CHOOSE CASE UPPER(adw_1.Describe(token + '.type'))
CASE 'COLUMN','COMPUTE'
li_thispos = integer(adw_1.Describe(token + '.X'))
if li_thispos>=li_lastpos then //這是目前最後一列
li_lastpos=li_thispos
ls_lastcol=token
end if
end choose
NEXT
//設置表頭長度
string ls_change
ls_change="800~tlong(describe('"+ls_lastcol+".x')) + long(describe('"+ls_lastcol +".width')) + 10"
//messagebox('',ls_change)
adw_1.modify('title.width="'+ls_change+'"')
return 1
11 如何使光標指向每頁第一行?
long ll_firstrowonpage=long(dw_1.describe("datawindow.firstrowonpage"))
dw_1.scrolltorow(ll_firstrowonpage)
dw_1.setrow(ll_firstrowonpage)
12. 怎樣取子數據窗口的總列數 工工 工工工工工工工工工工工工工工工工工工工式 l_column_count=integer(dwc.describe("datawindow.column.count")) //dwc爲子窗口
13.在數據窗口過濾以後,計算列值如何才能一起改變?
dw_1.setfilter(filter_condition)
dw_1.filter()
dw_1.groupcalc()
14.怎麼改變某一列的背景顏色?
dw_1.Modify("sno.background.mode=2" )
dw_1.Modify ( "sno.background.Color='255'" )
15.在數據窗口中如何delete選中的多行?
Long ll_rows , ll_row
ll_rows=DW_1.RowCount()
for ll_row = ll_rows to 1 step -1
if dw_1.isSelected(ll_row) then
dw_1.DeleteRow(ll_row)
end if
next
16.如何改變列的字體顏色,提醒用戶此列已做修改
在列的Color屬性中,輸入如下表達式
IF (column_name < >column_name.Original, RGB(255, 0, 0), RGB(0, 0, 0))
17.數據窗口中限定某列不可編輯 用DataWindow的clicked事件中的方法也可以實現列的保護。若
某列不可更改,則可置rotect=0。即:
dw_1.modify("columnname.protect=0")
或dw_1.modify("#"+string(number)+".protect=0")
若要將該列改爲可更改,則置protect=1,即:
dw_1.modify(:columnname.protect=1")
或dw_1.modify("#"+string(number)+".protect=1")
此方法不影響Tab鍵的移動,用戶可以隨意拉動列,還可在應用過
程中自己決定哪一列可編輯,哪一列不可編輯。
18.怎樣去掉上圖中數據窗口中的黑影?
this.Modify ("DataWindow.selected.mouse=no")
this.Modify ("DataWindow.Grid.ColumnMove = false")
19 實現逐行增加求和
使用計算列:CumulativeSum(field for all),即可達到逐漸遞增求和的功能
20 快速刪除多行
方法是把要刪除的行從主緩衝區中移到刪除緩衝區中。例如,刪除緩衝區中所有的行: dw_1.RowsMove(dw_1, 1, dw_1.RowCount, Primary!, dw_1, 1, Delete!)
21、在分組的header上加序號
答:建立計算域,expression:cumulativeSum( If (jlxm = jlxm[-1],0,1) for all)
22、爲什麼varchar字段類型的列只能保存255個字符?
答:設置事務處理對象的dbparm屬性即可
示例:
SQLCA.dbParm = "DBTextLimit = '9999'"
23、點擊grid類型數據窗口的header,自動排序。(圖片自己做)
/*
*args: i_str_oldcol
*note:實例變量,紀錄上次點擊的列
*/
string i_str_oldcol
string str_ O B J E C Tname, str_curcol, str_addpic
integer int_pic_x
str_OBJECTname =string (dwo.name) //對象名稱
if row = 0 and this.describe(str_OBJEC Tname+".band") = "header" and this.describe(str_OBJEC Tname+".text") <> "!" then //是否點擊列對象
str_curcol = left(str_ O B J E C Tname,len(str_ O B J E C Tname) - 2) //當前列對象名稱
if str_curcol <> i_str_oldcol then //點擊的是不同列對象
this.modify("destroy p_sort") //不管有沒有位圖對象都刪除
i_str_oldcol = str_curcol //保存上次點擊的列對象
//畫圖
int_pic_x = integer(this.describe(str_ O B J E C Tname+".x")) + (integer(this.describe(str_ O B J E C Tname+".width")) - 70)
str_addpic = 'create bitmap(band = foreground filename= "../pic/up.bmp" x= "'+string(int_pic_x)+'" y= "24" height= "48" width= "48" border= "0" name= p_sort visible= "1")'
this.modify(str_addpic) //動態畫個圖
this.setsort(str_curcol + " A") //頭一次點擊當然是升序了
this.sort()
else //當前列已經點過了
if this.describe("p_sort.filename") = "../pic/up.bmp" then //上次是升序
this.modify("p_sort.filename = '../pic/down.bmp'")
this.setsort(str_curcol + " D") //這次是降序
else
this.modify("p_sort.filename = '../pic/up.bmp'")
this.setsort(str_curcol + " A")
end if
this.sort()
end if
end if
24、如何讓存儲文件目錄的列,顯示圖片?
答:選擇對應的column的display as picture屬性爲true
25、如何複製grid類型的所選擇的行的數據到系統剪切板?
答:string ls_selected
ls_selected=dw_1.Object.DataWindow.Selected.Data
clipbord(ls_selected)
26、如何設置的DW底色?
在DW的editsource中改變color的值
27、如何將Grid風格改成自由格式?
在DW的editsource中將processing=1的1改爲0
28、要新建一個表A但風格和現有表格B風格一樣,怎麼將A錶快速設置成表B風格?
複製B表C,在C表的DW中的editsource中將表名和字段名改成A表的,即可
29、如何實現gird風格的datawindow的多欄表頭?
答:添加 text到header帶區,並設置band屬性爲foreground保存,edit source 修改text的x和width屬性表達式如下:
x="100~t integer(describe('firstcol.x')" width="100~tinteger(describe('lastcol.x')) - integer(describe('firstcol.x')) +integer(describe('lastcol.width'))
30、如何過濾dddw編輯風格的顯示值爲指定值的記錄?
答:dw_1.setfilter("lookupdisplay('column_name')='"+ls_display_value_your+"'")
dw_1.filter()
31、如何設置datawindow的某一列爲空?
答:string ls_temp[]
setnull(ls_temp)
dw_1.object.columnname.primary.current=ls_temp
32、如何設置datawindow的單雙行不同顏色間隔?
答:在detail帶區的color屬性表達式中寫上if(mod (getrow(),2)=1 ,rgb(255,0,0),rgb(0,255,0)),如果是當前行以第三種顏色表示,表達式如下:if(getrow()=current(), rgb(255,0,0),if(mod(getrow(),2)=1 ,rgb(0,0,255),rgb(0,255,0)))
33、如何獲取指定名稱的datawindowobject?
答:DWObject ldwo_use,ldwo_abc
ldwo_use = dw_1.Object
ldwo_abc = ldwo_use.__get_attribute("t_1",FALSE)//t_1爲datawindow中text對象的名稱
34、如何縮放datawindow的打印大小?
答:dw_1.object.datawindow.zoom=150 or dw_1.object.datawindow.zoom=75
35、如何在已過濾後的數據基礎上對datawindow進行過濾?
答:dw_1.setfilter(dw_1.describe("datawindow.table.filter")+your_join+your_new_filter)
dw_1.filter()
36、如何在datawindow中顯示動態時間?
答:建立一個計算域,表達式爲string(datetime(today(),now()),'yyyy年mm月dd日 hh點mm分ss秒'),同時設置datawindow的屬性dw_1.Object.DataWindow.Timer_Interval=500
37、如何讓帶用title bar的datawindow控件的標題欄誠活動窗口的顏色?
答:外部函數定義:
funcation logn SetActiveWindow(long hwnd ) Library "user32.dll"
datawindow控件的clicked事件代碼:
setactivewindow(handle(this))
38、如何設置datawindow的當前行指示圖標?
答:在datawindow中建立一個計算列,expression爲'',並將該計算列移動爲datawindow的第一個列,在datawindow控件的
rowfocuschanged事件中寫入代碼:
SetRowFocusIndicator(hand!)或setrowfucsindicator(p_1)//p_1爲窗口上的picture控件名
39、如何通過代碼打開dddw?
答:定義外部函數引用聲明
SUBROUTINE keybd_event( int bVk, int bScan, int dwFlags, int dwExtraInfo) LIBRARY "user32.dll"
代碼如下: [constant integer VK_F4 = 115
dw_1.SetFocus()
dw_1.SetColumn( "dept_head_id" ) //設置當前dddw
keybd_event( VK_F4,0,0,0 ) // 按下F4鍵
keybd_event( VK_F4,0,2,0 ) // 釋放F4鍵
40、如何打印datawindow的內容到文件中?
答: dw_1.object.datawindow.print.fileName ="c:/temp.prn"
dw_1.print()
41、如何設置dddw的初始值?
答:dw_1.object.columnname.Initial="your_initial_value"
42、如何只顯示不同的數據?
答:dw_1.filter("isnull(columnname[-1]) and columnname<>columnname[-1]")
dw_1.filter()
43、如何讓帶有title bar的datawindow不可以移動?
答:在datawindow的自定義事件ue_nchittest(pbm_nchittest)中寫入如下代碼:
return 1
44、如何在N-UP顯示風格中建立基於第N欄中的列的計算列?
答:如column有兩列,number和price ,並顯示爲兩欄,則第一欄的cost計算列的expression爲number*price,第二欄的cost_1計算列的expression爲number[1]*price[1]
45、如何清空ddlb或edit.codetable中項目?
答:dw_1.Object.columnname.Values=""
46、如何實現指定的column的字體旋轉90度?
答:dw_1.object.columnname.font.Escapement ="900"
47、如何獲取datawindow的sql代碼?
答: 可以通過以下四種方法獲取sql代碼:
string szselect
szselect=dw_1.describe("datawindow.table.select")
szselect=dw_1.describe("datawindow.table.sqlselect")
szselect=dw_1.describe("datawindow.table.select.attribute")
szselect=dw_1.getsqlselect()
48、如何獲取datawindow對象佔有的虛擬存儲的容量?
答:使用datawindow.storage屬性
舉例:在datawindow控件的retrieverow事件中,寫如如下代碼:
long lstorage
lstorage=long(dw_1.object.datawindow.storage)
if lstorage>50000 then dbcancel()
49、如何連續在同一張紙打印兩個數據窗口?
答:dw_1.object.datawindow.print.filename="temp.prn"
dw_2.object.datawindow.print.filename="temp.prn"
dw_1.print()
dw_2.print()
50、如何設置datawindow分組後每個分組中的記錄號?
答:建立一個計算列,expression爲 getrow() - first(getrow() for group 1)+1
51、如何實現在datawindow中只有新增的行,纔可以編輯?
答:在所有的column的protect屬性表達式中寫入以下表達式:
if(isrownew(),'0','1')
52、問:怎麼讓PB只打印當前記錄,是用Free格式製作的數據窗口!
---------------------------------------------------------------
答:
DataStore ldt_temp
long ll_Row , ll_Rows
ll_Rows = dw_XX.Rowcount()
If ll_Rows = 0 Then GoTo the_end
If ll_Rows = 1 Then
dw_XX.Print()
GoTo the_end
End if
dw_XX.SetRedraw(False)
ldt_temp = Create DataStore
ldt_temp.DataObject = dw_XX.DataObject
ll_Row = dw_XX.GetRow()
dw_XX.RowsMove(1 , ll_Rows , Primary! , ldt_temp , 1 , Primary!)
ldt_temp.RowsMove(ll_Row , ll_Row , Primary! , dw_XX , 1 , Primary!)
dw_XX.Print()
dw_XX.RowsMove(1 , 1 , Primary! , ldt_temp , ll_Row , Primary!)
ldt_temp.RowsMove(1 , ll_Rows , Primary! , dw_XX , 1 , Primary!)
Destroy ldt_temp
dw_XX.SetRedraw(True)
the_end:
// 只用將上述腳本拷入到打印部分即可,dw_XX爲被打印的free型數據窗口,該方法可保證dw_XX中的數據在打印前後包括sort等屬性均不發生任何改變,但效率較低,不宜用在數據量太大的數據窗口中,當然,考慮到打印本身速度就比較慢,所以3000行數據是可以採用這種方法並讓用戶接受的。若在同一窗口上存在與dw_XX共享的grid數據窗口並且與dw_XX同時顯示,則需要與dw_one一起SetRedraw()
53、如何使dw的列不可移動,不可調整列寬?
答:在datawindow的cilcked事件寫 if row=0 then return 1 end if
54.光標跳轉到數據窗口的某一行某一列
dw_1.scrolltorow(ll_row) dw_1.setcolumn(ll_column)
55. Grid的窗口如何使第一列固定不動?
①選上data OBJECT的HSplitScroll屬性 ②在constructor事件中: dw_1.Object.DataWindow.HorizontalScrollSplit=integer(dw_1.describe("#1.width")) //第一列的寬度 ③在scrollhorizontal事件中: int i
if pane = 1 then
i = integer(this.OBJECT.datawindow.horizontalscrollposition2)
if i < 1 or isnull(i) then return
if scrollpos > 0 then
this.OBJECT.datawindow.horizontalScrollPosition = 0
end if
else
i = integer(this.Object.DataWindow.HorizontalScrollSplit)
if i < 1 or isnull(i) then return
if i > scrollpos then
this.OBJECT.datawindow.horizontalScrollPosition2 = i
end if
end if
把如下代碼放在某列的text color裏,可實現修改某行某列後,該列變爲紅色,否則爲白色(前景)
If(IsRowModified(), 255, 0)
56、彈出式菜單
//m_module是菜單名
m_module m_newmenu
m_newmenu=create m_module
m_newmenu.popmenu(pointerX(),pointerY())
57、這段代碼不用API就可以取IP
Integer lifilenum
String lsbat , lsdat
String lstext,lsip[]
Long i , llfilename
llfilename = 0
Do While True
llfilename ++
lsbat = 'C:/' + String(llfilename) + '.BAT'
If FileExists(lsbat) Then Continue
// If DirectoryExists(lsbat) Then Continue
Exit
Loop
llfilename = 0
Do While True
llfilename ++
lsdat = 'C:/' + String(llfilename) + '.DAT'
If FileExists(lsdat) Then Continue
// If DirectoryExists(lsdat) Then Continue
Exit
Loop
lifilenum = FileOpen(lsbat,linemode!, Write!, lockwrite!, Replace!)
FileWrite(lifilenum,'ipconfig > ' + lsdat)
FileClose(lifilenum)
Run(lsbat,minimized!)
Do While True
Yield()
If FileExists(lsdat) Then Exit
Loop
Do While True
Yield()
lifilenum = FileOpen(lsdat,linemode!)
If lifilenum > 0 Then Exit
Loop
Do While True
Yield()
If FileRead(lifilenum, lstext) = -100 Then
Exit
Else
If Pos(lstext,'IP Address') > 0 Then
lsip[UpperBound(lsip) + 1] = Mid(lstext,Pos(lstext,':') + 1)
End If
End If
Loop
FileClose(lifilenum)
FileDelete(lsbat)
FileDelete(lsdat)
If UpperBound(lsip) = 0 Then
MessageBox('','沒有網卡或網絡連接未啓用!')
Else
For i = 1 To UpperBound(lsip)
MessageBox('IP:'+String(i),lsip)
Next
End If
(
聲明win32 API函數:
function int WSAStartup( uint UIVersionRequested, ref s_WSAData lpWSAData ) library "wsock32.dll"
function int WSACleanup() library "wsock32.dll"
function int WSAGetLastError ( ) library "wsock32.dll"
function int gethostname ( ref string name, int namelen ) library "wsock32.dll"
function string GetHost(string lpszhost, ref blob lpszaddress ) library "pbws32.dll"
使用方法:
s_wsadata l_WSAData
string ls_HostName = space(128)
string ls_IpAddress
int li_version = 257
blob{4} lb_hostaddress
IF wsastartup ( li_version, l_WSAData ) = 0 THEN
IF gethostname ( ls_HostName, len(ls_HostName) ) < 0 THEN
messagebox("GetHostName",WSAGetLastError())
ELSE
GetHost(ls_HostName, lb_HostAddress)
ls_IpAddress = string(asc(string(blobmid(lb_HostAddress,1,1))),"000") + "."
ls_IpAddress += string(asc(string(blobmid(lb_HostAddress,2,1))),"000") + "."
ls_IpAddress += string(asc(string(blobmid(lb_HostAddress,3,1))),"000") + "."
ls_IpAddress += string(asc(string(blobmid(lb_HostAddress,4,1))),"000")
END IF
WSACleanup()
ELSE
messagebox("GetHostName",WSAGetLastError())
END IF
sle_1.text=ls_hostname
sle_2.text=ls_ipaddress
)
58、嵌入桌面
Function Ulong FindWindowA(string classname, String windowname) Library "user32.dll"
Function Long SetParent(Long childwin, Long parentwin) Library "user32.dll"
long ll_handle
ll_handle=findwindowa(“Progman”, “Program Manager”)
setparent(handle("我的窗口"),ll_handle)
59、非複合報表中的嵌套報表不可使用getchild取得,也不可使用describe取得屬性和使用modify更改屬性,你可以調用PB未載入文檔的函數來獲取/更改屬性,請看示例,注意多層嵌套時使用循環獲取最終對象.
例:數據窗口控件dw_test包含嵌套報表dw_1,dw_1有欄位dept_name.
dwobject ldwo_parent,ldwo_obj
string ls_color
ldwo_parent = dw_1.object
ldwo_obj = ldwo_parent.__get_attribute("dw_1",false)
ldwo_obj = ldwo_obj.object
ldwo_obj = ldwo_obj.__get_attribute("dept_name",false)
ls_color = ldwo_obj.color//取顏色
ldwo_obj.__set_attribute("color",rgb(192,192,192))//更改顏色
60、EXCEL的內容導入數據窗口
string str_savename,named,s_grxh
int excelok,li_net
long li_count,i
oleobject excelserver
excelserver=create oleobject
excelok=excelserver.connecttonewobject("excel.application")
if excelok<>0 then
messagebox("信息提示","連接excel失敗,請檢查計算機中是否安裝了excel!")
return -1
end if
li_net=getfileopenname("選擇文件",str_savename,named,"xls","excel文件(*.xls),*xls")
if li_net>0 then
if str_savename="" then
messagebox("信息提示","沒有指定導入文件!")
return -1
else
dw_1.settransobject(sqlca)
dw_1.reset()
excelserver.workbooks.open(str_savename)
excelserver.activesheet.cells.copy
li_count=dw_1.importclipboard(2)
clipboard("")
excelserver.quit()
excelserver.disconnectobject()
cb_2.enabled=true
this.enabled=false
destroy excelserver
return 1
end if
end if
61、PB數據轉到EXCEL裏面不能求和 pb轉過去的都是字符型的 怎麼解決!!
ole_object.Worksheets(1).Columns(1).NumberFormat = "@"這個是把一個列,變成字符,"#"是數字
62、讓DW中的行單、雙行顯示不同顏色
if(currentrow()=getrow(),rgb(185,200,255),if(mod(getrow(),2)=1, rgb(255,255,255) , rgb(240,243,255)))
63、滿足條件時該列字體顯示爲紅色。
tab_1.tabpage_1.dw_1.Object.czr.Color = "0~tIf(string(zlzq,'yyyy-mm')<=string(today(),'yyyy-mm'),rgb(241,0,51),rgb(0,0,0))"
滿足條件時該列背景色爲紅色
tab_1.tabpage_1.dw_1.modify("djh.background.mode=0")//
tab_1.tabpage_1.dw_1.object.djh.background.color = "0~tif ( string(zlzq,'yyyy-mm')<=string(today(),'yyyy-mm'), rgb(255,0,0), rgb(255,255,255))"
64、按下Insert鍵時插入一行
//自定義一個PBM_DWNKEY的事件在事件裏寫(可能有別的簡單的方法)
if keydown(keycontrol!) then
if keydown(KeyInsert!) then
//插入一行
dwname.insertrow(0)
end if
end if
65、當某列獲得焦點時,光標移動到最後
方法一:
//獲得焦點時,按下END鍵
public Subroutine keybd_event(int bVk,int bScan,ulong dwFlags,ulong dwExtraInfo) LIBRARY "user32.dll"
if dwo.name = "sqr_gzdw" then
keybd_event(35,0,0,0)
end if
方法二:
this.setcolumn("po_gzdw") //讓這列先獲得焦點
this.selecttext( len(data) + 1,0 ) //再從最後選種0個字符