Commentaires sur : Validation d’un IBAN en C# http://www.juliencarnelos.com/2007/09/26/validation-dun-iban-en-c/ JEE , .NET , SOA , Conseil Wed, 30 Jun 2010 13:40:41 +0200 http://wordpress.org/?v=2.9.2 hourly 1 Par : Albireo http://www.juliencarnelos.com/2007/09/26/validation-dun-iban-en-c/comment-page-1/#comment-614 Albireo Thu, 20 Nov 2008 10:31:14 +0000 http://www.juliencarnelos.com/2007/09/26/validation-dun-iban-en-c/#comment-614 Hi, thank you very much for your code, has saved my life from implementing a validation function from scratch... ^_^ I reformatted a bit your code to improve readability removing some variables and replaced the <em>for</em> cycle with another foreach. If the code below becomes messed up, I've uploaded the snippet here: <a href="http://pastebin.com/f7a76053f" title="Look at the snippet on pastebin.com">pastebin.com</a>. <code>public static bool ValidateIban(String Iban) { StringBuilder sbCheck; Int32 intValue; Int32 intChecksum; Iban = Iban.Substring(4, Iban.Length - 4) + Iban.Substring(0, 4); sbCheck = new StringBuilder(); foreach (Char cCharacter in Iban) { intValue = (Char.IsLetter(cCharacter)) ? (cCharacter - 'A' + 10) : (cCharacter - '0'); sbCheck.Append(intValue); } intChecksum = Int32.Parse(sbCheck.ToString(0, 1)); foreach (Char cCharacter in sbCheck.ToString(1, sbCheck.Length - 1)) { intValue = Int32.Parse(cCharacter.ToString()); intChecksum *= 10; intChecksum += intValue; intChecksum %= 97; } return (intChecksum == 1); }</code> Hi, thank you very much for your code, has saved my life from implementing a validation function from scratch… ^_^

I reformatted a bit your code to improve readability removing some variables and replaced the for cycle with another foreach.

If the code below becomes messed up, I’ve uploaded the snippet here: pastebin.com.

public static bool ValidateIban(String Iban)
{
StringBuilder sbCheck;
Int32 intValue;
Int32 intChecksum;

Iban = Iban.Substring(4, Iban.Length - 4) + Iban.Substring(0, 4);

sbCheck = new StringBuilder();

foreach (Char cCharacter in Iban)
{
intValue = (Char.IsLetter(cCharacter)) ? (cCharacter - 'A' + 10) : (cCharacter - '0');

sbCheck.Append(intValue);
}

intChecksum = Int32.Parse(sbCheck.ToString(0, 1));

foreach (Char cCharacter in sbCheck.ToString(1, sbCheck.Length - 1))
{
intValue = Int32.Parse(cCharacter.ToString());

intChecksum *= 10;
intChecksum += intValue;
intChecksum %= 97;
}

return (intChecksum == 1);
}

]]> Par : Royale http://www.juliencarnelos.com/2007/09/26/validation-dun-iban-en-c/comment-page-1/#comment-515 Royale Wed, 26 Sep 2007 13:02:32 +0000 http://www.juliencarnelos.com/2007/09/26/validation-dun-iban-en-c/#comment-515 Moi j'aurais pu te dire commencer valider une clef RIB en PL/SQL comme je l'ai fais y a pas longtemps... Mais c'est moins sexy ;-) Moi j’aurais pu te dire commencer valider une clef RIB en PL/SQL comme je l’ai fais y a pas longtemps… Mais c’est moins sexy ;-)

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