RDLC報(bào)表中使用自定義函數(shù)

2023-05-17 11:41:59

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來源：轉(zhuǎn)載

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在RDLC中，可以使用自定義方法來擴(kuò)充報(bào)表功能。比如常見的，把數(shù)字轉(zhuǎn)換為大寫中文的需求。按如下方法操作。

1、在報(bào)表空白處先一點(diǎn)，確保沒點(diǎn)中任何報(bào)表對(duì)象。然后點(diǎn)擊菜單欄上的“報(bào)表”。

選“報(bào)表屬性”，在彈出的小窗口上，切換到“代碼”標(biāo)簽頁。

在文本框內(nèi)輸入你的函數(shù)，我們這里輸入了一個(gè)CNMoney函數(shù)。

注意：

（1）嵌入代碼中的方法必須以 Microsoft Visual Basic 語法進(jìn)行編寫

（2）代碼塊可以包含多個(gè)方法。

（3）無法向函數(shù)傳遞數(shù)據(jù)值集，不支持自定義聚合。一般用于簡(jiǎn)單數(shù)據(jù)類型。

（4）此方法可在該報(bào)表中多次使用，但是不能脫離報(bào)表使用。即不能在報(bào)表中共享這一函數(shù)。

其他報(bào)表中要用到該方法，需在報(bào)表中創(chuàng)建同樣的代碼段。

2、在報(bào)表上拖一個(gè)文本框，在上面點(diǎn)右鍵，選“表達(dá)式”，在彈出的表達(dá)式界面上，輸入

code.CNMoney(16)

注意：以code+.+函數(shù)名稱的方式引用之前定義的方法

下圖為操作流程示意

下面為文中用到的函數(shù)體，可在項(xiàng)目中實(shí)際使用。

'#############################################################################
'貨幣轉(zhuǎn)換為中文漢字表述
'
'函數(shù)名稱：CNMoney
'參數(shù)：ls
'返回值：轉(zhuǎn)換后的字符串
'
'整理人：阿泰
'版本歷史
'2010-04-20：首次編譯，修正0參數(shù)，修正小于10的值不能正常顯示的BUG
'
'本文函數(shù)來源于 feng442624978，原帖地址：
'http://topic.csdn.net/u/20100303/15/0f0ceca7-d29d-4269-b0f5-17ea09d0f139.html
'#############################################################################
Shared Function CNMoney(ls As Long) As String
Dim dx_sz As String
Dim dx_dw As String
Dim str_int As String
Dim str_dec As String
Dim dx_str As String
Dim fu As String
Dim a As String
Dim b As String
Dim c As String
Dim d As String
Dim b2 As String
Dim num_int As Long
Dim num_dec As Long
Dim len_int As Long
Dim i As Long
Dim a_int As Long
Dim pp As Long
dx_sz = "零壹貳叁肆伍陸柒捌玖"
dx_dw = "萬仟佰拾億仟佰拾萬仟佰拾圓"
If ls = 0 Then
CNMoney = "零圓整"
Exit Function
End If
If ls < 0 Then
ls = Abs(ls)
fu = "負(fù)"
Else
fu = ""
End If
dx_str = CStr(ls)
dx_str = Replace(dx_str, "￥", "")
dx_str = Replace(dx_str, ",", "")
If (ls >= 0) And (ls < 1) Then dx_str = "0" + dx_str
pp = InStr(dx_str, ".")
If pp > 0 Then
str_int = Mid(dx_str, 1, InStr(dx_str, ".") - 1)
Else
str_int = dx_str
End If
num_int = CLng(str_int)
If (ls > 0) And (ls < 1) Then
num_dec = ls * 100
Else
num_dec = (ls - num_int) * 100
End If
str_dec = CStr(num_dec)
str_dec = Replace(str_dec, "￥", "")
len_int = Len(str_int)
dx_str = ""
For i = 1 To len_int
a = Mid(str_int, i, 1)
a_int = CLng(a)
b = Mid(dx_sz, (a_int + 1), 1)
c = Mid(dx_dw, (13 - len_int + i), 1)
If dx_str <> "" Then
d = Mid(dx_str, Len(dx_str) - 1, 1)
Else
d = ""
End If
If (b = "零") And ((d = "零") Or (b = b2) Or (c = "圓") Or (c = "萬") Or (c = "億")) Then b = ""
If (a = "0") And (c <> "圓") And (c <> "萬") And (c <> "億") Then c = ""
If ((c = "圓") Or (c = "萬") Or (c = "億")) And (d = "零") And (a = "0") Then
dx_str = Mid(dx_str, 1, Len(dx_str) - 2)
d = Mid(dx_str, Len(dx_str) - 1, 2)
If ((c = "圓") And (d = "萬")) Or ((c = "萬") And (d = "億")) Then c = ""
End If
dx_str = dx_str + b + c
b2 = b
Next i
'處理金額小于1的情況
If Len(dx_str) < 2 Then dx_str = ""
If (num_dec < 10) And (ls > 0) Then
a_int = CLng(str_dec)
b = Mid(dx_sz, (a_int + 1), 1)
If num_dec = 0 Then dx_str = dx_str + "整"
If num_dec > 0 Then dx_str = dx_str + "零" + b + "分"
End If
If num_dec >= 10 Then
a_int = CLng(Mid(str_dec, 1, 1))
a = Mid(dx_sz, (a_int + 1), 1)
a_int = CLng(Mid(str_dec, 2, 1))
b = Mid(dx_sz, (a_int + 1), 1)
If a <> "零" Then a = a + "角"
If b <> "零" Then b = b + "分" Else b = ""
dx_str = dx_str + a + b
End If
dx_str = fu + dx_str
dx_str = Replace(dx_str, "零億", "億")
dx_str = Replace(dx_str, "零萬", "萬")
dx_str = Replace(dx_str, "零千", "千")
dx_str = Replace(dx_str, "零圓", "圓")
CNMoney = dx_str
End Function