給Grid 控件增加打印方法有三種:一是直接打印控件,二是通過p rinter 來實現打印功能,三是通過調用MS-Word及MS-Excel 來實現打 印。
首先,打開一個應用,在FORM1中增加DATA控件DATA1,把DATA1的CO NNECT屬性設為dBA SEⅢ,再把DATABASENAME屬性設為D:\PJXM.DBF。 然后再在FORM1中增加MSFLEXGRID控件GRID1,并把GRID1的DATASOURCE 屬性設為DATA1。這樣數據庫PJXM.DBF的信息就會在GRID1 中顯示出 來。下面分析介紹各種打印方法。
方法一:直接打印窗體
在FORM1中增加命令按鈕(command),CAPTION屬性設為直接打印, 再寫入下列代碼:
Sub command_click
Form1.printform
End sub
這樣即可通過打印窗體FORM1的方法把GRID1的數據打印出來。這 種方法的缺點是只能打印GRID1中顯示的數據部分,顯示不出來的則無 法打印,而且這種打印方法很像屏幕硬拷貝,而且不能靈活地控制字體 等。
方法二:通過PRINTER實現打印
1. 加入打印命令按鈕(command1)和函數(prnt1),寫入下面代碼, 讀者稍加改動可寫成標準的函數或過程。Function prnt1 (x As Int eger, y As Integer, font As Sing le, txt As String)
printer.CurrentX = x
printer.CurrentY = y
printer.FontBold = False
printer.FontSize = font
printer.Print txt End Function Sub command1_click
Dim fnt As Single
Dim pp as integer
Pp=0 '設置開始頁碼0
Dim stry,strx,strx1,stry1,linw,page1,p As Integer
Static a(8) As Integer '定義打印的列數
ss$ = "內部結算存入款對帳單" '定義表頭
kan = 0
For i = 0 To 8
a(i) = 1500' 定義每列寬
kan = kan + a(i) '計算表格總寬度
Next
page1 = 50 ’定義每頁行數
strx = 200
strx1 = 200 ’定義X方向起始位置
stry = 1400
stry1 = 1400 ’定義Y方向起始位置
linw = 240 ’定義行寬
fnt = 8 ’定義字體大小
printer.fontname = "宋體" ’定義字體
dd = prnt1(4000, 700, 18, ss$) ’打印標題
printer.Line (strx - 50, stry - 30)-(strx +
kan - 10, stry - 30)
For j = 0 To gridrow - 1
’gridrow為所要打印的行數
grid1.row = j
strx = strx1
printer.Line (strx - 50, stry - 30)-(strx +
kan - 10, stry - 30)
p = p + 1
For i = 0 To 8
grid1.col = i
dd = prnt1(strx, stry, fnt, grid1.text)
strx = strx + a(i)
Next
If p > page1 Then ’next page
p = 0
strx = strx1
printer.Line (strx - 50, stry + linw)-(strx + kan - 10, stry + linw)
stry = stry1
For n = 0 To 8
printer.Line (strx - 30, stry - 30)-(strx
- 30, stry + (page1 + 2) * linw)
strx = strx + a(n)
Next
printer.Line (strx - 30, stry - 30)-(strx -
30, stry + (page1 + 2) * linw)
pp=pp+1
foot$="第 "+cstr(pp)+" 頁"
dd = prnt1(strx - 30-1000, stry + (page1 +
2) * linw+100, 10, foot$) ’打印頁腳碼
printer.NewPage ’next page
dd = prnt1(4000, 700, 18, ss$) ’打印標題
strx = strx1
stry = stry1
printer.Line (strx - 50, stry - 30)-(strx +
kan - 10, stry - 30) ’打印第一行
Else
stry = stry + linw
End If Next
st = stry
If p < page1 Then ’在最后頁剩余劃空行
For o = p To page1 + 1
strx = strx1
printer.Line (strx - 50, stry - 30)-(strx +
kan - 10, stry - 30)
stry = stry + linw
Next
End If
stry = stry1
strx = strx1
stry = stry1’line col
For n = 0 To 8
printer.Line (strx - 30, stry - 30)-(strx -
30, stry + (page1 + 2) * linw)
strx = strx + a(n)
Next
printer.Line (strx - 30, stry - 30)-(strx -
30, stry + (page1 + 2) * linw)
pp=pp+1
foot$="第 "+cstr(pp)+" 頁"
dd = prnt1(strx - 30-1000, stry + (page1 +
2) * linw+100, 10, foot$) ’打印頁腳碼
printer.EndDoc ’打印結束
End sub
這種方法通過靈活的編程可以方便地調整字體、字型、線形、頁 面、紙張大小等,可打印出比較滿意的效果。
如果計算機上裝有Microsoft Word和Microsoft Excel,則可把GR ID的表格通過VB發送到這些應用程序中去,生成Microsoft Word和Mic rosoft Excel表格。這樣可以充分利用它們的打印、編輯功能,打印 出更理想的效果。下面逐一介紹。
方法三:通過生成Word表格打印
1. 在declaration 中寫入:
Dim msword As Object
2. 加入打印命令按鈕(command2),CAPTION設為"生成Word表格", 寫入下面代碼:Pri vate Sub command2_Click()
screen.MousePointer = 11
Set msword = CreateObject("word.basic")
Dim AppID, ReturnValue
appID = Shell("d:\office97\office\WIN-
WORD.EXE", 1) ’運行Word
msword.AppActivate "Microsoft Word"
full
Screen.MousePointer = 0 End Sub
3. 寫入以下過程full() Sub full()
Dim i As Integer, j As Integer, col As Integer,
row As Integer
Dim cellcontent As String
Me.Hide
cols = 4 ’表格的列數
row = gridrow ’打印表的行數
msword.filenewdefault
msword.MsgBox "正在建立MS_WORD報表,請稍候
……", "", -1
msword.leftpara
msword.screenupdating 0
msword.tableinserttable , col, row, , , 16, 167
msword.startofdocument
for j=0 to gridrow ’表格的行數
grid1.row=j
For i = 1 To cols
Gri1d.col=i
If IsNull(grid1.text) Then
cellcontent$ = ""
Else
cellcontent$ = grid1.text
End If
msword.Insert cellcontent$
msword.nextcell
Next i
Next j
msword.tabledeleterow
msword.startofdocument
msword.tableselectrow
msword.tableheadings 1
msword.centerpara
’msword.startdocument
msword.screenrefresh
msword.screenupdating 1
msword.MsgBox "結束", "", -1
Me.Show End Sub
方法四:通過發送到Excel實現表格打印
1. 加入打印命令按鈕(command3),CAPTION設為"生成EXCEL表格" ,寫入下面代碼: Private Sub command3_Click()
Dim i As Integer
Dim j As Integer
Dim xlApp As Excel.Application
Dim xlBook As Excel.Workbook
Dim xlSheet As Excel.Worksheet
Set xlApp = CreateObject("Excel.Application")
xlApp.Visible = True
Set xlBook = xlApp.Workbooks.Add
Set xlSheet = xlBook.Worksheets(1)
xlSheet.Cells(6, 1) = "i"
For i = 0 To gridrow
grid1.Row = i
For j = 0 To 6
Grid1.Col = j
If IsNull(Grid1.Text) = False Then
xlSheet.Cells(i + 5, j + 1) = Grid1.Text
End If
Next j
Next i End Sub
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