StackOverflow2013

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PO
primarykey
Id
20307012
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
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0
CommunityOwnedDate
CreationDate
2013-11-30T23:43:39.547
FavoriteCount
0
LastActivityDate
2013-12-01T00:08:02.483
LastEditDate
2013-12-01T00:08:02.483
LastEditorUserId
1010405
OwnerUserId
1010405
ParentId
20306332
PostTypeId
2
Score
0
ViewCount
0
LastEditorDisplayName
text
Body
<p>Hint: I was trying to come up with some code for number validation for my own learning just before you posted your question and I got this far, I would not say it is fully tested, but I did not catch bugs so far:</p> <pre><code>Class Program Private Shared Sub Main(args As String()) 'For testing, culture string nl-BE allows , as a decimal separator Dim d As Decimal = CheckNum(".", String.Empty) Console.WriteLine(d.ToString()) Console.Read() End Sub Private Shared Function CheckNum(parm_toParseStr As String, parm_cultureName As String) As Decimal 'Convert the string sent to decimal value and raise an exception if conversion falils 'Expects string to validate and culture name (e.g. en-US). If culture name not passed, current is used 'Takes care of the missing feature in try parse, namely when a string of only "." is passed, tryparse ' does not convert it to 0. Dim style As NumberStyles Dim culture As CultureInfo Dim result As Decimal If String.IsNullOrEmpty(parm_cultureName) Then parm_cultureName = Thread.CurrentThread.CurrentCulture.Name End If 'for style see: http://msdn.microsoft.com/en-us/library/system.globalization.numberstyles%28v=vs.110%29.aspx style = NumberStyles.Number Or NumberStyles.AllowLeadingSign culture = CultureInfo.CreateSpecificCulture(parm_cultureName) parm_toParseStr = parm_toParseStr.Trim() If String.IsNullOrEmpty(parm_toParseStr) Then parm_toParseStr = "0" End If ' Gets a NumberFormatInfo associated with the passed culture. Dim nfi As NumberFormatInfo = New CultureInfo(parm_cultureName, False).NumberFormat If parm_toParseStr = "+" OrElse parm_toParseStr = "-" OrElse parm_toParseStr = nfi.CurrencyDecimalSeparator Then '+ - and decimal point parm_toParseStr = "0" End If 'for tryparse see: http://msdn.microsoft.com/en-us/library/ew0seb73%28v=vs.110%29.aspx?cs-save-lang=1&cs-lang=csharp#code-snippet-2 If [Decimal].TryParse(parm_toParseStr, style, culture, result) Then Return result Else Throw New ArgumentNullException("Could not convert the passed value of:{0}", parm_toParseStr) End If End Function End Class </code></pre>
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1. POConversion from string "." to type 'Decimal' is not valid
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