RDLC中使用自定义函数实现数字转中文大写（金额） 可以使用聚合函数做参数

1.在代码中写函数

   

Function DxMnu(ByVal Money As String, Optional ByVal YB As Boolean = True) As String
        Dim X, Y As String
        Dim I As Integer
        Const Zimu = ".sbqwsbqysbqwsbq" ''定义位置代码
        Const Letter = "0123456789sbqwy.zjf" ''定义汉字缩写
        Const Upcase = "零壹贰叁肆伍陆柒捌玖拾佰仟万亿圆整角分" '定义大写汉字
        Dim Temp As String
        Try
            Temp = Convert.ToString(Format(Convert.ToDouble(Money), "0.00"))
        Catch ex As Exception
            Throw New NotSupportedException("数据给出错误（非数字格式）！")
            DxMnu = "Error."
            Exit Function
        End Try
        If Len(Temp) > 12 Then
            Throw New NotSupportedException("数据太大，无法计算（超亿位无法计算）！")
            DxMnu = "Error."
            Exit Function
        End If
        If InStr(Temp, ".") > 0 Then Temp = Left(Temp, InStr(Temp, ".") - 1)
        X = Format(Convert.ToDouble(Money), "0.00") '格式化货币
        Y = ""
        For I = 1 To Len(X) - 3
            Y = Y & Mid(X, I, 1) & Mid(Zimu, Len(X) - 2 - I, 1)
        Next
        If Right(X, 3) = ".00" Then
            Y = Y & "z" ''***元整
        Else
            If Right(X, 1) = "0" Then
                Y = Y & Left(Right(X, 2), 1) & "j" & "z" '*元*角*整
            Else
                Y = Y & Left(Right(X, 2), 1) & "j" & Right(X, 1) & "f" ''*元*角*分
            End If
        End If
        Y = Replace(Y, "0q", "0") ''避免零千(如：40200肆萬零千零贰佰)
        Y = Replace(Y, "0b", "0") ''避免零百(如：41000肆萬壹千零佰)
        Y = Replace(Y, "0s", "0") ''避免零十(如：204贰佰零拾零肆)
        Do While Y <> Replace(Y, "00", "0")
            Y = Replace(Y, "00", "0") ''避免双零(如：1004壹仟零零肆)
        Loop
        Y = Replace(Y, "0y", "y") ''避免零億(如：210億 贰佰壹十零億)
        If Val(Mid(Right(Temp, 4), 1, 1)) > 0 Then
            Y = Replace(Y, "0w", "w0") ''避免无零千(如：102000 拾万贰仟)，应该是拾万零贰仟
        Else
            Y = Replace(Y, "0w", "w") ''避免零萬(如：210萬 贰佰壹十零萬)
        End If
        'Y = IIf(Len(X) = 5 And Left(Y, 1) = "1", Right(Y, Len(Y) - 1), Y) ''避免壹十(如：14壹拾肆；10壹拾)
        Y = IIf(Len(X) = 4, Replace(Y, "0.", ""), Replace(Y, "0.", ".")) ''避免零元(如：20.00贰拾零圆；0.12零圆壹角贰分)
        If Len(Temp) >= 9 Then '加
            Y = Replace(Y, "yw", "y") '避免亿万元　如　100000000，壹亿万元　应该是壹亿元
        End If '加
        For I = 1 To 19
            Y = Replace(Y, Mid(Letter, I, 1), Mid(Upcase, I, 1)) ''大写汉字
        Next
        If YB = False Then
            Y = Y.Replace("圆整", "")
        End If
        DxMnu = Y
    End Function

2.在文本框中写代码（注意加上code）。

="无税金额合计（大写）：" & code.DxMnu(Sum(Fields!bb_sum.Value, "ReportDataSet_BillBody"))