1. Verify the email address
#region Verify email /// <summary>
/// Verify the email address /// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static bool IsEmail(string source)
{
return (source, @"^[A-Za-z0-9](([_\.\-]?[a-zA-Z0-9]+)*)@([A-Za-z0-9]+)(([\.\-]?[a-zA-Z0-9]+)*)\.([A-Za-z]{2,})$", );
}
public static bool HasEmail(string source)
{
return (source, @"[A-Za-z0-9](([_\.\-]?[a-zA-Z0-9]+)*)@([A-Za-z0-9]+)(([\.\-]?[a-zA-Z0-9]+)*)\.([A-Za-z]{2,})", );
}
#endregion
2. Verification date
#region Verification Date /// <summary>
/// Verification date /// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static bool IsDateTime(string source)
{
try
{
DateTime time = (source);
return true;
}
catch
{
return false;
}
}
#endregion
3. Verify the URL
#region Verify URL /// <summary>
/// Verify the URL /// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static bool IsUrl(string source)
{
return (source, @"^(((file|gopher|news|nntp|telnet|http|ftp|https|ftps|sftp)://)|(www\.))+(([a-zA-Z0-9\._-]+\.[a-zA-Z]{2,6})|([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}))(/[a-zA-Z0-9\&amp;%_\./-~-]*)?$", );
}
public static bool HasUrl(string source)
{
return (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;%_\./-~-]*)?", );
}
#endregion
4. Verify your mobile phone number
#region Verify mobile phone number /// <summary>
/// Verify mobile phone number /// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static bool IsMobile(string source)
{
return (source, @"^1[3456789]\d{9}$", );
}
public static bool HasMobile(string source)
{
return (source, @"1[3456789]\d{9}", );
}
#endregion
5. Verify whether the ID card is valid
#region Verify that the ID card is valid /// <summary>
/// Verify that the ID card is valid /// </summary>
/// <param name="Id"></param>
/// <returns></returns>
public static bool IsIDCard(string Id)
{
if ( == 18)
{
bool check = IsIDCard18(Id);
return check;
}
else if ( == 15)
{
bool check = IsIDCard15(Id);
return check;
}
else
{
return false;
}
}
public static bool IsIDCard18(string Id)
{
long n = 0;
if (((17), out n) == false || n < (10, 16) || (('x', '0').Replace('X', '0'), out n) == false)
{
return false;//Digital verification }
string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91";
if (((2)) == -1)
{
return false;//Provincial verification }
string birth = (6, 8).Insert(6, "-").Insert(4, "-");
DateTime time = new DateTime();
if ((birth, out time) == false)
{
return false;//Birthday verification }
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 = (17).ToCharArray();
int sum = 0;
for (int i = 0; i < 17; i++)
{
sum += (Wi[i]) * (Ai[i].ToString());
}
int y = -1;
(sum, 11, out y);
if (arrVarifyCode[y] != (17, 1).ToLower())
{
return false;//Check code verification }
return true;//Complied with GB11643-1999 standard }
public static bool IsIDCard15(string Id)
{
long n = 0;
if ((Id, out n) == false || n < (10, 14))
{
return false;//Digital verification }
string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91";
if (((2)) == -1)
{
return false;//Provincial verification }
string birth = (6, 6).Insert(4, "-").Insert(2, "-");
DateTime time = new DateTime();
if ((birth, out time) == false)
{
return false;//Birthday verification }
return true;//Complied with the 15-digit ID card standard }
#endregion
6. Verify IP address
#region Verify IP /// <summary>
/// Verify IP /// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static bool IsIP(string source)
{
return (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])$", );
}
public static bool HasIP(string source)
{
return (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])", );
}
public static bool IsIp(string ip)
{
bool result = false;
try
{
string[] iparg = ('.');
if ( != ip && < 16 && == 4)
{
int intip;
for (int i = 0; i < 4; i++)
{
intip = Convert.ToInt16(iparg[i]);
if (intip > 255)
{
result = false;
return result;
}
}
result = true;
}
}
catch
{
return result;
}
return result;
}
#endregion
7. Verify whether the number is Int type
Is #region Int type? /// <summary>
/// Is it Int type /// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static bool IsInt(string source)
{
Regex regex = new Regex(@"^(-){0,1}\d+$");
if ((source).Success)
{
if (((source) > 0x7fffffffL) || ((source) < -2147483648L))
{
return false;
}
return true;
}
return false;
}
#endregion
8. Verify whether it is a Chinese phone number
#region Is it a Chinese phone number? Format 010-85849685 /// <summary>
/// Is it a Chinese phone number? Format 010-85849685 /// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static bool IsTel(string source)
{
return (source, @"^\d{3,4}-?\d{6,8}$", );
}
#endregion
9. Verify whether the length of the string is between the limited numbers. One Chinese is two characters
#region Check whether the length of the string is between the limited numbers. One Chinese is two characters /// <summary>
/// See if the length of the string is between the limited numbers. One Chinese is two characters /// </summary>
/// <param name="source">String</param> /// <param name="begin">greater than or equal to</param> /// <param name="end">less than or equal to</param> /// <returns></returns>
public static bool IsLengthStr(string source, int begin, int end)
{
int length = (source, @"[^\x00-\xff]", "OK").Length;
if ((length <= begin) && (length >= end))
{
return false;
}
return true;
}
#endregion
10. Verify the postal code
#region Postal Code 6 Numbers /// <summary>
/// Postal code 6 numbers /// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static bool IsPostCode(string source)
{
return (source, @"^\d{6}$", );
}
#endregion
11. Verify whether it is Chinese
#region Chinese /// <summary>
/// Chinese /// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static bool IsChinese(string source)
{
return (source, @"^[\u4e00-\u9fa5]+$", );
}
public static bool hasChinese(string source)
{
return (source, @"[\u4e00-\u9fa5]+", );
}
#endregion
12. Verify whether it is normal characters. Combination of letters, numbers, and underscores
#region Verify whether it is a normal character. A combination of letters, numbers, and underscores /// <summary>
/// Verify that it is a normal character combination of letters, numbers, and underscores /// </summary>
/// <param name="source"></param>
/// <returns></returns>
public static bool IsNormalChar(string source)
{
return (source, @"[\w\d_]+", );
}
#endregion
13. Verify username: It must start with a letter and can contain letters, numbers, "_", ".", at least 5 characters
#region Verification username: Must start with a letter and can contain letters, numbers, "_", ".", at least 5 characters /// <summary>
/// Verify username: Must start with a letter and can contain letters, numbers, "_", ".", at least 5 characters /// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static bool checkUserId(string str)
{
Regex regex = new Regex("[a-zA-Z]{1}([a-zA-Z0-9]|[._]){4,19}");
if ((str).Success)
if ((str)[0]. == )
return true;
return false;
}
#endregion
14. Verify whether it is a decimal
#region Verify whether it is a decimal bool IsValidDecimal(string strIn)
{
return (strIn, @"[0].d{1,2}|[1]");
}
#endregion
15. Verification year, month, date
#region Verification date bool IsValidDate(string strIn)
{
return (strIn, @"^2d{3}-(?:0?[1-9]|1[0-2])-(?:0?[1-9]|[1-2]d|3[0-1])(?:0?[1-9]|1d|2[0-3]):(?:0?[1-9]|[1-5]d):(?:0?[1-9]|[1-5]d)$");
}
#endregion
16. Verify file suffix name
#region Verify suffix name bool IsValidPostfix(string strIn)
{
return (strIn, @".(?i:gif|jpg)$");
}
#endregion
17. Verify that the date format is correct
#region Verify date format //Check whether the date format is correct public static bool IsDate(string str)
{
// Considering the 4-year 366 days, there is also a special February date Regex reg = new Regex(@"^((((1[6-9]|[2-9]\d)\d{2})-(0?[13578]|1[02])-(0?[1-9]|[12]\d|3[01]))|(((1[6-9]|[2-9]\d)\d{2})-(0?[13456789]|1[012])-(0?[1-9]|[12]\d|30))|(((1[6-9]|[2-9]\d)\d{2})-0?2-(0?[1-9]|1\d|2[0-8]))|(((1[6-9]|[2-9]\d)(0[48]|[2468][048]|[13579][26])|((16|[2468][048]|[3579][26])00))-0?2-29-)) (20|21|22|23|[0-1]?\d):[0-5]?\d:[0-5]?\d$");
return (str);
}
#endregion
18. Verify whether the characters are between 4 and 12
#region Verify whether the characters are between 4 and 12 bool IsValidByte(string strIn)
{
return (strIn, @"^[a-z]{4,12}$");
}
#endregion
19. Determine whether a string is a number
#endregion
#region determines whether a string is a number /// <summary>
/// Determine whether the string is a number /// </summary>
/// <param name="str">character to be verified</param> /// <returns>bool</returns>
public static bool IsNumber(string str)
{
bool result = true;
foreach (char ar in str)
{
if (!(ar))
{
result = false;
break;
}
}
return result;
}
#endregion
20. Is it digital?
Is #region a digital type? /// <summary>
/// Is it digital? /// </summary>
/// <param name="strNumber"></param>
/// <returns></returns>
public static bool IsDecimal(string strNumber)
{
return new (@"^([0-9])[0-9]*(\.\w*)?$").IsMatch(strNumber);
}
#endregion
21. Verify whether Chinese/all Chinese is included
#region Verify whether Chinese/all Chinese is included /// <summary>
/// Verify whether Chinese is included /// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static bool IsHanyu(string str)
{
Regex regex = new Regex("[\u4e00-\u9fa5]");
if ((str).Success)
return true;
else
return false;
}
/// <summary>
/// Verify that all Chinese /// </summary>
/// <param name="str"></param>
/// <returns></returns>
public static bool IsHanyuAll(string str)
{
Regex regex = new Regex("[\u4e00-\u9fa5]");
// When the matching content length is the same as the verified content length, the verification passes if ((str).Success)
if ((str).Count == )
return true;
//Other, not passed return false;
}
#endregionSummarize
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