嘗試在記錄「中投」的值,像這樣:
CDbl(rs.fields("QTY").value)
這將值轉換爲雙。如果該值爲空,你會得到錯誤的連接,所以你必須檢查第一...
或者,您可以編寫一個函數來始終得到正確的類型:
public function parse(value, alternative)
dim val
val = trim(value & "")
parse = alternative
if val = "" then exit function
on error resume next
select case varType(parse)
case 2, 3 'integer, long
parse = cLng(val)
case 4, 5 'single, double
parse = cdbl(val)
case 6 'currency
parse = ccur(val)
case 7 'date
parse = cDate(val)
case 11 'bool
parse = cBool(val)
case 8 'string
parse = value & ""
case else
on error goto 0
lib.throwError("type not supported. val:" & value & " alt:" & alternative)
end select
on error goto 0
end function
dim val : val = rs("QTY")
val = parse(val, 0)
' now val is always an integer (either the value from db or 0)