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#region 验证邮箱验证邮箱/**//// <summary>/// 验证邮箱/// </summary>/// <param name="source"></param>/// <returns></returns>public static bool IsEmail(string source){return Regex.IsMatch(source, @"^[A-Za-z0-9](([_.-]?[a-zA-Z0-9]+)*)@([A-Za-z0-9]+)(([.-]?[a-zA-Z0-9]+)*).([A-Za-z]{2,})$", RegexOptions.IgnoreCase);}public static bool HasEmail(string source){return Regex.IsMatch(source, @"[A-Za-z0-9](([_.-]?[a-zA-Z0-9]+)*)@([A-Za-z0-9]+)(([.-]?[a-zA-Z0-9]+)*).([A-Za-z]{2,})", RegexOptions.IgnoreCase);}#endregion #region 验证网址/**//// <summary>/// 验证网址/// </summary>/// <param name="source"></param>/// <returns></returns>public static bool IsUrl(string source){return Regex.IsMatch(source, @"^(((file|gopher|news|nntp|telnet|http|ftp|https|ftps|sftp)://)|(www.))+(([a-zA-Z0-9._-]+.[a-zA-Z]{2,6})|([0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}))(/[a-zA-Z0-9&%_./-~-]*)?$", RegexOptions.IgnoreCase);}public static bool HasUrl(string source){return Regex.IsMatch(source, @"(((file|gopher|news|nntp|telnet|http|ftp|https|ftps|sftp)://)|(www.))+(([a-zA-Z0-9._-]+.[a-zA-Z]{2,6})|([0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}.[0-9]{1,3}))(/[a-zA-Z0-9&%_./-~-]*)?", RegexOptions.IgnoreCase);}#endregion #region 验证日期/**//// <summary>/// 验证日期/// </summary>/// <param name="source"></param>/// <returns></returns>public static bool IsDateTime(string source){try{DateTime time = Convert.ToDateTime(source);return true;}catch{return false;}}#endregion #region 验证手机号/**//// <summary>/// 验证手机号/// </summary>/// <param name="source"></param>/// <returns></returns>public static bool IsMobile(string source){return Regex.IsMatch(source, @"^1[35]d{9}$", RegexOptions.IgnoreCase);}public static bool HasMobile(string source){return Regex.IsMatch(source, @"1[35]d{9}", RegexOptions.IgnoreCase);}#endregion #region 验证IP/**//// <summary>/// 验证IP/// </summary>/// <param name="source"></param>/// <returns></returns>public static bool IsIP(string source){return Regex.IsMatch(source, @"^(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]).(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0).(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0).(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])$", RegexOptions.IgnoreCase);}public static bool HasIP(string source){return Regex.IsMatch(source, @"(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]).(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0).(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[1-9]|0).(25[0-5]|2[0-4][0-9]|[0-1]{1}[0-9]{2}|[1-9]{1}[0-9]{1}|[0-9])", RegexOptions.IgnoreCase);}#endregion #region 验证身份证是否有效/**//// <summary>/// 验证身份证是否有效/// </summary>/// <param name="Id"></param>/// <returns></returns>public static bool IsIDCard(string Id){if (Id.Length == 18){bool check = IsIDCard18(Id);return check;}else if (Id.Length == 15){bool check = IsIDCard15(Id);return check;}else{return false;}} public static bool IsIDCard18(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} public static bool IsIDCard15(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 #region 是不是Int型的/**//// <summary>/// 是不是Int型的/// </summary>/// <param name="source"></param>/// <returns></returns>public static bool IsInt(string source){Regex regex = new Regex(@"^(-){0,1}d+$");if (regex.Match(source).Success){if ((long.Parse(source) > 0x7fffffffL) || (long.Parse(source) < -2147483648L)){return false;}return true;}return false;}#endregion #region 看字符串的长度是不是在限定数之间 一个中文为两个字符/**//// <summary>/// 看字符串的长度是不是在限定数之间 一个中文为两个字符/// </summary>/// <param name="source">字符串</param>/// <param name="begin">大于等于</param>/// <param name="end">小于等于</param>/// <returns></returns>public static bool IsLengthStr(string source, int begin, int end){int length = Regex.Replace(source, @"[^x00-xff]", "OK").Length;if ((length <= begin) && (length >= end)){return false;}return true;}#endregion #region 是不是中国电话，格式010-85849685/**//// <summary>/// 是不是中国电话，格式010-85849685/// </summary>/// <param name="source"></param>/// <returns></returns>public static bool IsTel(string source){return Regex.IsMatch(source, @"^d{3,4}-?d{6,8}$", RegexOptions.IgnoreCase);}#endregion #region 邮政编码 6个数字/**//// <summary>/// 邮政编码 6个数字/// </summary>/// <param name="source"></param>/// <returns></returns>public static bool IsPostCode(string source){return Regex.IsMatch(source, @"^d{6}$", RegexOptions.IgnoreCase);}#endregion #region 中文/**//// <summary>/// 中文/// </summary>/// <param name="source"></param>/// <returns></returns>public static bool IsChinese(string source){return Regex.IsMatch(source, @"^[u4e00-u9fa5]+$", RegexOptions.IgnoreCase);}public static bool hasChinese(string source){return Regex.IsMatch(source, @"[u4e00-u9fa5]+", RegexOptions.IgnoreCase);}#endregion #region 验证是不是正常字符 字母，数字，下划线的组合/**//// <summary>/// 验证是不是正常字符 字母，数字，下划线的组合/// </summary>/// <param name="source"></param>/// <returns></returns>public static bool IsNormalChar(string source){return Regex.IsMatch(source, @"[wd_]+", RegexOptions.IgnoreCase);}#endregionC#验证邮箱,电话,手机,数字,英文,日期,身份证,邮编,网址,IP类等常用函数封装
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原文地址：http://www.cnblogs.com/BillBlog/p/4816178.html
