Check whether the ID card information is valid

/// <Summary>
/// Check whether the ID card information is valid
// 2010-10-13 jorln
/// </Summary>
/// <Param name = "num"> ID card number </param>
/// <Param name = "sex"> gender </param>
/// <Returns> </returns>
Public bool checkidentity (string num, string sex)
{
Bool isiden = false;
If (convert. toint32 (Num. substring (6, 4)> 1850 & convert. toint32 (Num. substring (6, 4) <2010 & convert. toint32 (Num. substring (10, 2) <= 12 & convert. toint32 (Num. substring (12, 2) <= 31)
{
If (Num. substring (10, 2) = "02" & convert. toint32 (Num. substring (10, 2)> 29)
Return isiden;
If (convert. toint32 (Num. substring (16, 1) % 2 = 0 & sex = "") | (convert. toint32 (Num. substring (16, 1) % 2! = 0 & sex = "male "))
{
Int COUNT = 0;
Int [] iden = {7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2 ,};
For (INT I = 0; I <iden. length; I ++)
{
Count + = convert. toint32 (Num. substring (I, 1) * iden [I];
}
Int cc = count % 11;
Char num18 = Cc = 0? '1': (Cc = 1? '2': (Cc = 2? 'X': (Cc = 3? '9': (Cc = 4? '8': (Cc = 5? '7': (Cc = 6? '6': (Cc = 7? '5': (Cc = 8? '4': (Cc = 9? '3': '2 ')))))))));
Isiden = num. substring (17, 1). toupper () = num18.tostring ()? True: false;

}
}
Return isiden;
}

 

 

// reverse a string
Public static string reverse ( string S)
{< br> char [] C = S. tochararray ();
system. array. reverse (c);
return New string (C );
}< br>