验证十八位身份号是否合法

/// <summary>
/// 验证十八位身份号是否合法
/// </summary>
/// <param name="Id"></param>
/// <returns></returns>
private static bool CheckIDCardLong(string idCard)
{
try
{
long n = 0;
if (long.TryParse(idCard.Remove(17), out n) == false || n < Math.Pow(10, 16) || long.TryParse(idCard.Replace('x', '0').Replace('X', '0'), out n) == false)
{
return false;//数字验证
}

string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91";
if (address.IndexOf(idCard.Remove(2)) == -1)
{
return false;//省份验证
}

string birth = idCard.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 = idCard.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] != idCard.Substring(17, 1).ToLower())
{
return false;//校验码验证
}
return true;//符合GB11643-1999标准
}
catch (Exception ex)
{
throw ex;
}
}