主题：自定义函数问题

这样改

Dim oldV = args(0)
Dim newV = args(1)
Dim r As Row = CurrentTable.Current
Dim colIndex As Integer = CurrentTable.ColSel
Dim colName As String = CurrentTable.Cols(colIndex).Name
For Each dt As DataTable In DataTables
    If dt.DataCols.Contains(ColName) Then
        If dt.DataCols(ColName).IsBoolean Then
            For Each dr As DataRow In dt.Select("[" & colName & "] = " & oldV)
                dr(colName) = newV
            Next
        ElseIf dt.DataCols(ColName).IsDate Then
            For Each dr As DataRow In dt.Select("[" & colName & "] = #" & oldV & "#")
                dr(colName) = newV
            Next
        ElseIf dt.DataCols(ColName).IsNumeric Then
            For Each dr As DataRow In dt.Select("[" & colName & "] = " & oldV)
                dr(colName) = newV
            Next
        ElseIf dt.DataCols(ColName).IsString Then
            For Each dr As DataRow In dt.Select("[" & colName & "] = '" & oldV & "'")
                dr(colName) = newV
            Next
        End If
    End If
    dt.Save
Next