asp.net 中国身份证号码验证代码 非正则

 
using System; /// <summary> 
/// Summary description for IDCardValid 
/// </summary> 
public class IDCardValid 
{ 
public IDCardValid() 
{ 
// 
// TODO: Add constructor logic here 
// 
} /// <summary> 
/// 验证身份证号码 
/// </summary> 
/// <param name="Id">身份证号码</param> 
/// <returns>验证成功为True，否则为False</returns> 
public static bool CheckIDCard(string Id) 
{ 
if (Id.Length == 18) 
{ 
bool check = CheckIDCard18(Id); 
return check; 
} 
else if (Id.Length == 15) 
{ 
bool check = CheckIDCard15(Id); 
return check; 
} 
else 
{ 
return false; 
} 
} 
#region 身份证号码验证 /// <summary> 
/// 验证15位身份证号 
/// </summary> 
/// <param name="Id">身份证号</param> 
/// <returns>验证成功为True，否则为False</returns> 
private static bool CheckIDCard18(string Id) 
{ 
long n = 0; 
if (long.TryParse(Id.Remove(17), out n) == false || n < Math.Pow(10, 16) || long.TryParse(Id.Replace('x', '0').Replace('X', '0'), out n) == false) 
{ 
return false;//数字验证 
} 
string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91"; 
if (address.IndexOf(Id.Remove(2)) == -1) 
{ 
return false;//省份验证 
} 
string birth = Id.Substring(6, 8).Insert(6, "-").Insert(4, "-"); 
DateTime time = new DateTime(); 
if (DateTime.TryParse(birth, out time) == false) 
{ 
return false;//生日验证 
} 
string[] arrVarifyCode = ("1,0,x,9,8,7,6,5,4,3,2").Split(','); 
string[] Wi = ("7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2").Split(','); 
char[] Ai = Id.Remove(17).ToCharArray(); 
int sum = 0; 
for (int i = 0; i < 17; i++) 
{ 
sum += int.Parse(Wi[i]) * int.Parse(Ai[i].ToString()); 
} 
int y = -1; 
Math.DivRem(sum, 11, out y); 
if (arrVarifyCode[y] != Id.Substring(17, 1).ToLower()) 
{ 
return false;//校验码验证 
} 
return true;//符合GB11643-1999标准 
} /// <summary> 
/// 验证18位身份证号 
/// </summary> 
/// <param name="Id">身份证号</param> 
/// <returns>验证成功为True，否则为False</returns> 
private static bool CheckIDCard15(string Id) 
{ 
long n = 0; 
if (long.TryParse(Id, out n) == false || n < Math.Pow(10, 14)) 
{ 
return false;//数字验证 
} 
string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91"; 
if (address.IndexOf(Id.Remove(2)) == -1) 
{ 
return false;//省份验证 
} 
string birth = Id.Substring(6, 6).Insert(4, "-").Insert(2, "-"); 
DateTime time = new DateTime(); 
if (DateTime.TryParse(birth, out time) == false) 
{ 
return false;//生日验证 
} 
return true;//符合15位身份证标准 
} 
#endregion 
} 

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