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标签:VB  来源:编程中国  作者:ggyy66  发布时间:2008-12-10  ★★★加入收藏〗〖手机版
摘要:' '函数名:Rs…

'------------------------------------------------------------------------------------------------------------------------
'函数名:RsFillFlex2
'功能:用记录集填充表格
'创建日期:2007-8-22
'更新日期:2007-8-22
'注意:从第1列开始填充数据,第0列自动生成一个序号列
'由于多出一个序号列,所以表格的列数比记录集的字段数多1
'---------------------------------------------------------------
Public Function RsFillFlex2(strcaption As String, _
                          grd As MSFlexGrid, _
                          rs As adodb.Recordset, _
                          Optional alignFlag As Integer = 0, _
                          Optional showZeroFlag As Integer = 0, _
                          Optional Rows_Fixed As Integer = 1, _
                          Optional TableHead As Integer = 1) As Boolean
  '本函数特别要求,对于含的小数点的数值型数据,要根据数据表中的结构显示小数点个数
  '功能:将记录添充到表格中
  '参数一:表头格式
  '参数二:表格控件名称
  '参数三:记录集
  '参数四:表示是否指定"列对齐方式",为1根据记录集的字段类型来设置,为0根据表格的formatstring设置
  '参数五:是否显示数字0,为0不显示,为1要显示
  '参数六:固定行数,默认为1
  '参数七:表头所占的行数,默认为1 (该参数有何意义?)
  '好象记录集必须是客户端游标才行,服务器端游标记录数不好取

Dim i As Long, j As Long, strField As String           'strField用于存放字段内容
  Dim vnttmp As Variant                             '临时存放每个单元格内容[要能存放各种类型数据,故为variant型]
  Dim rsCols As Long                                '记录集的字段数
  Dim grdCols As Long                               '表格的列数

on Error GoTo errhandler


  '记录集未打开,则返回错误
  If rs.State <> adStateOpen Then
      MsgBox "没有可供显示的记录集!", 32, "提示"
      RsFillFlex2 = False
      Exit Function
  End If

'首先判断记录集是否有内容[如果无内容要清除表格原有内容],因为记录集正常打开的情况下,也可能一条记录都没有
  If rs.BOF = True And rs.eof = True Then
      grd.Rows = grd.FixedRows                  '清除除表头的所有内容
      grd.Rows = Rows_Fixed + 1                 '无记录时,显示一个空白行
      RsFillFlex2 = True
      Exit Function
  End If

'注意:不能设置固定行,否则会报错[设置固定行时,除非固定行比行数小一,否则报错]

'以下代码运行的前提是:已有记录
  With grd
      .Rows = .FixedRows                                '将行数设置成固定行的行数
      .Clear                                            '清除原有内容[重要]
      .FormatString = strcaption                        '格式化表头,确定列数
      grdCols = .Cols                                   '取表格列数
      rsCols = rs.Fields.Count                          '记录集字段数
      '判断传来的表头与记录集的字段数是否一致
      If grdCols <> rsCols + 1 Then
          '          MsgBox grdcols
          '          MsgBox rscols
          MsgBox "记录集字段数与表格列数不匹配,表格列数应比记录集列数多1,第0列为序号列!", 16, "提示"
          RsFillFlex2 = False
          Exit Function
      End If

'下面进行表格填充[只有在真正填充之前,才能设置成不重绘,否则容易花屏]
      .Redraw = False                                '不重绘,目的是提高速度

'确定表格总行数[因为存在表头,故表数行数应等于记录条数加一]
      .Rows = rs.RecordCount + TableHead                   '该设定决定表格有多少行显示数据,很重要

'根据参数决定是否设置各列对齐方式,为1时不按formatstring设置,按记录集字段类型设置
      If alignFlag = 1 Then
          For j = 1 To rs.Fields.Count
              Select Case rs.Fields(j - 1).Type
                  Case adDecimal, adDouble, adSingle, adNumeric, adBigInt, adInteger, adTinyInt, adSmallInt
                      '设定为右对齐
                      .ColAlignment(j) = 7
                  Case Else
                      '设定为左对齐
                      .ColAlignment(j) = 1
              End Select
          Next
      End If

rs.MoveFirst
      For i = 1 To rs.RecordCount                   '循环显示记录,有多少条记录则循环多少次
          .TextMatrix(i, 0) = i                     '第0列显示序号
          For j = 1 To rs.Fields.Count              '循环处理各个列
              '取单元格的值
              vnttmp = Trim(rs.Fields(j - 1).Value & "")
              '根据不同的类型,设置不同的格式显示
              Select Case rs.Fields(j - 1).Type
                  Case adDecimal, adDouble, adSingle, adNumeric
                      If Val(vnttmp) = 0 Then
                          If showZeroFlag = 0 Then
                              strField = ""
                          Else
                              '根据数据库中的字段小数位数的定义设置格式[注意:要对小数位数为0进行处理]
                              Select Case rs.Fields(j - 1).NumericScale
                                  Case 0
                                      strField = Format(vnttmp, "#")
                                  Case 1
                                      strField = Format(vnttmp, "#0.0")
                                  Case 2
                                      strField = Format(vnttmp, "#0.00")
                                  Case 3
                                      strField = Format(vnttmp, "#0.000")
                                  Case Else
                                      strField = Format(vnttmp, "#0.000#")
                              End Select
                          End If
                      Else
                          '根据数据库中的字段小数位数的定义设置格式[注意:要对小数位数为0进行处理]
                          Select Case rs.Fields(j - 1).NumericScale
                              Case 0
                                  strField = Format(vnttmp, "#")
                              Case 1
                                  strField = Format(vnttmp, "#0.0")
                              Case 2
                                  strField = Format(vnttmp, "#0.00")
                              Case 3
                                  strField = Format(vnttmp, "#0.000")
                              Case Else
                                  strField = Format(vnttmp, "#0.000#")
                          End Select
                      End If
                  Case adBigInt, adInteger, adTinyInt, adSmallInt
                      If Val(vnttmp) = 0 Then
                          If showZeroFlag = 0 Then
                              strField = ""
                          Else
                              strField = vnttmp
                          End If
                      Else
                          strField = vnttmp
                      End If

'                  Case adBoolean
                      '                      '布尔值
                      '                      strField = IIf(vnttmp = True, "是", "否")
                      '                  Case adDBTimeStamp
                      '                      '日期时间值
                      '                      strField = Left(Format(vnttmp, "yyyy/mm/dd"), 10)
                  Case Else
                      strField = vnttmp
              End Select
              .TextMatrix(i, j) = strField
          Next
          rs.MoveNext                           '显示下一条记录
      Next

'设定第几行显示在最前面(用toprow属性)
      .TopRow = Rows_Fixed

'      '使表头各列居中
      '      .Row = 0
      '      For j = 0 To .Cols - 1
      '          '.FixedAlignment(j) = 4
      '          .Col = j
      '          .CellAlignment = 4
      '      Next
      .Redraw = True                                '填完数据后,充许重绘
      RsFillFlex2 = True                             '返回true
  End With

Exit Function
  errhandler:
  grd.Clear
  grd.Rows = grd.FixedRows                  '清除除表头的所有内容
  grd.Rows = Rows_Fixed + 1                 '无记录时,显示一个空白行
  grd.Redraw = True     '出错后如果不设置成充许重绘,则会花屏
  RsFillFlex2 = False
  MsgBox "发生错误:" & Err.Description
End Function

原帖及讨论:http://bbs.bccn.net/thread-164547-1-1.html

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