MicroERP开发技术分享：vsFlexGrid、scriptControl实现工资表自定义列与表间关系计算

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开发大型的MIS系统，肯定是离不开第三方控件的，同时也要根据项目需要自己写几个。

MicroERP共用了以下几个控件：

第三方商业控件:

vsFlexGrid：大名鼎鼎的表格控件，不用多说，配合vsPrinter使用

开源的基础上修改和自己写的：

button按钮

cash会计凭证用的金额线

MDITabs MDI窗体

LeftMenu手风琴导航菜单

这里着重说一下vsFlexGrid、scriptControl的使用，以工资模块来说明表格运算及脚本编程示例。

这个控件也不是万能的，比如单元格没有change事件，很淡疼

在工资发放中，最难的就是工资表的自定义字段，某些成熟的软件用了内置上百个字段，然后由用户修改字段属性方式来完成，这里我用了“行转列”的方式，具体实现效果请参见MicroERP中的工资管理模块。

实现原理就是把预设的工资结构在填制工资表时，将表中的行转为工资表中的发放字段，某工资表数据行如下：

基本工资

岗位工资

养老保险

应发工资

应发工资=基本工资+岗位工资-养老保险

实发工资表时，显示为：

员工姓名|基本工资|岗位工资|养老保险|应发工资

员工一.......................

员工二.......................

以VB为例，实现代码如下，其它语言类似

'行转列
Public Sub SetFrame(frameID As Long)

Dim cn As New ADODB.Connection, rs As New ADODB.Recordset, sql As String
    Dim i As Long
    btnSelectEmployee.Enabled = True

    sql = "SELECT tbGZItem.ItemName "
    sql = sql & "FROM (tbGZFrame INNER JOIN tbGZFrameDetail ON
tbGZFrame.ID = tbGZFrameDetail.FrameID) INNER JOIN tbGZItem ON
tbGZFrameDetail.ItemID = tbGZItem.ID "
    sql = sql & "where tbGZFrameDetail.FrameID=" & frameID & " order by tbGZFrameDetail.FOrder"
    On Error GoTo err
    Set cn = GetConnection
    rs.CursorLocation = adUseClient
    rs.Open sql, cn, adOpenStatic, adLockReadOnly

With fg
        .Clear
        .Rows = 1
        .Cols = rs.RecordCount + 3
        For i = 3 To .Cols - 1
            .ColWidth(i) = 1300
            .ColAlignment(i) = flexAlignRightCenter
        Next i

        .TextMatrix(0, 1) = "EmpID"
        .TextMatrix(0, 2) = "员工姓名"

.Cell(flexcpAlignment, 0, 1, 0, .Cols - 1) = flexAlignCenterCenter
.ColWidth(0) = 300
.ColHidden(1) = True

For i = 0 To rs.RecordCount - 1
            .TextMatrix(0, i + 3) = rs.Fields("ItemName").Value
            .ColKey(i + 3) = rs.Fields("ItemName").Value
            rs.MoveNext
        Next i
    End With

    Exit Sub
err:
    If rs.State <> adStateClosed Then rs.Close
    Set rs = Nothing
    If cn.State <> adStateClosed Then cn.Close
    Set cn = Nothing

MsgBox err.Description, vbCritical, "SetFrame"
End Sub

注意，.ColKey(i + 3) = rs.Fields("ItemName").Value，这句是重点。

下在是在工资表编辑时，根据字段定义，来自动计算公式列和所得税列的值

Private Sub fg_BeforeEdit(ByVal Row As Long, ByVal Col As Long, Cancel As Boolean)
    Dim formula As String '公式
    Dim funCol As String '需要计算的列
    Dim i As Integer
    Dim s As Single
    Dim q As Single

    If Col = 2 Then Cancel = True
    On Error GoTo err
    If Row <> 0 Then

If GetEditMode(fg.ColKey(Col)) = "公式计算" Then
            funCol = "fg.TextMatrix(" & Row & "," & Col & ")="

            formula = GetFormula(mFrameID, GetItemID(fg.ColKey(Col)))

            '例：基本工资+补贴-保险
            '将公式替换成行列索引
            For i = 3 To fg.Cols - 1
                formula = Replace(formula, fg.ColKey(i),
"fg.ValueMatrix(" & Row & ", " & fg.colIndex(fg.ColKey(i))
& ")")
            Next i
            formula = funCol & formula

            ScriptControl1.Reset
            ScriptControl1.AddObject "fg", fg
            ScriptControl1.ExecuteStatement formula

        ElseIf GetEditMode(fg.ColKey(Col)) = "所得税" Then
            txtYF.Text = Trim(GetINIstr(gAppPath & "option.ini", "system", "yffield"))
            '应发工资
            s = Val(fg.TextMatrix(Row, fg.colIndex(txtYF.Text)))
            '起征点
            q = Val(GetINIstr(gAppPath & "option.ini", "system", "gztax"))
            If s <= q Then
                fg.TextMatrix(Row, Col) = "0"
            Else
            '全月应纳税所得额
                fg.TextMatrix(Row, Col) = GetTax(s - q)
            End If


        End If
    End If

    Exit Sub
err:
    MsgBox err.Description, vbExclamation, "fg_BeforeEdit"
End Sub