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  ►  一个用记录集填充表格的函数
一个用记录集填充表格的函数
作者:ggyy66    阅读人次:……    文章来源:本站原创    发布时间:2007/8/24    网友评论()条
 

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

'------------------------------------------------------------------------------------------------------------------------
'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

 

 
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