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
}