using System;

/// <summary>
/// Summary description for IDCardValid
/// </summary>
public class IDCardValid
{
??? public IDCardValid()
??? {
??????? //
??????? // TODO: Add constructor logic here
??????? //
??? }

??? /// <summary>
??? /// 驗證身份證號碼
??? /// </summary>
??? /// <param name="Id">身份證號碼</param>
??? /// <returns>驗證成功為True，否則為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 身份證號碼驗證

??? /// <summary>
??? /// 驗證15位身份證號
??? /// </summary>
??? /// <param name="Id">身份證號</param>
??? /// <returns>驗證成功為True，否則為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;//數字驗證
??????? }
??????? string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91";
??????? if (address.IndexOf(Id.Remove(2)) == -1)
??????? {
??????????? return false;//省份驗證
??????? }
??????? string birth = Id.Substring(6, 8).Insert(6, "-").Insert(4, "-");
??????? DateTime time = new DateTime();
??????? if (DateTime.TryParse(birth, out time) == false)
??????? {
??????????? return false;//生日驗證
??????? }
??????? 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;//校驗碼驗證
??????? }
??????? return true;//符合GB11643-1999標準
??? }

??? /// <summary>
??? /// 驗證18位身份證號
??? /// </summary>
??? /// <param name="Id">身份證號</param>
??? /// <returns>驗證成功為True，否則為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;//數字驗證
??????? }
??????? string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91";
??????? if (address.IndexOf(Id.Remove(2)) == -1)
??????? {
??????????? return false;//省份驗證
??????? }
??????? string birth = Id.Substring(6, 6).Insert(4, "-").Insert(2, "-");
??????? DateTime time = new DateTime();
??????? if (DateTime.TryParse(birth, out time) == false)
??????? {
??????????? return false;//生日驗證
??????? }
??????? return true;//符合15位身份證標準
??? }
??? #endregion
}

中國身份證號碼驗證

轉載于:https://www.cnblogs.com/craig/archive/2010/11/11/1874851.html

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