c# 常见验证邮箱、电话号码、日期等格式

#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, @"^\w+([-+.\']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$", RegexOptions.IgnoreCase);
}
public static bool HasEmail(string source)
{
return Regex.IsMatch(source, @"[A-Za-z0-9](([_\.\-]?[a-zA-Z0-9]+)*)@([A-Za-z0-9]+)(([\.\-]?[a-zA-Z0-9]+)*)\.([A-Za-z]{2,})", RegexOptions.IgnoreCase);
}
#endregion
#region 验证网址
/**//// <summary>
/// 验证网址
/// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static bool IsUrl(string source)
{
return Regex.IsMatch(source, @"^(((file|gopher|news|nntp|telnet|http|ftp|https|ftps|sftp)://)|(www\.))+(([a-zA-Z0-9\._-]+\.[a-zA-Z]{2,6})|([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}))(/[a-zA-Z0-9\&amp;%_\./-~-]*)?$", 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\&amp;%_\./-~-]*)?", 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 I#endregionsNormalChar(string source)
{
return Regex.IsMatch(source, @"[\w\d_]+", RegexOptions.IgnoreCase);
}
#endregion