C # validating data validation classes

Using system;using system.text;using system.text.regularexpressions;namespace dachie.common{///<summary>/// A summary description of the Common. </summary>public class Regexcomm{//private const string reg_date = @ "^ (\d{2}|\d{4}) [\-\/] ((0?[ 1-9]) | (1[0-2])) [\-\/] ((0? [1-9]) | ((1|2) [0-9]) |30|31) $ "; Private Const string reg_date = @ "^ (\d{2}|\d{4}) ((0[1-9]) | ( 1[0-2]) ((0[1-9)) | ( (1|2) [0-9]) | 30|31) $ ";p rivate const string reg_phone = @" ^ ((0[0-9]{2,3}) {0,1} ([0-9]{7,8})) $ ";p rivate const string reg_email = @" ^ ([\w -\.] +) @ ((\[[0-9]{1,3}\. [0-9] {1,3}\. [0-9] {1,3}\.) | ([\w-]+\.) +)) ([a-za-z]{2,4}| [0-9] {1,3}) (\]?) $ ";p rivate const string reg_mobile = @" (^0{0,1}13[0-9]{9}$) ";p rivate const string reg_idcard = @" ^ ([0-9]{14}|[ 0-9]{17}) (x|[ 0-9]) {1}$ ";p rivate const string reg_time = @" ^ (([0-1]?[ 0-9]) | (2[0-3])) ([\:]) ([0-5][0-9])) $ "; #region half-width verification///<summary>///half-angle verification///</summary>///<param name=" str "> Validated string </param>/// <returns></returns>public static bool Isdbc (String str) {Utf8enCoding encoding = new utf8encoding (); int byteCount = encoding. GetByteCount (str); int strLen = str. Length;if (StrLen = = ByteCount) {return true;} return false;} #endregion #region Full-width verification//<summary>///full-width verification///</summary>///<param name= "str" > Validated string </param >///<returns></returns>public static bool ISSBC (String str) {utf8encoding encoding = new UTF8Encoding (); int byteCount = encoding. GetByteCount (str); int strLen = str. Length;if (ByteCount = = StrLen * 3) {return true;} return false;} #endregion #region Date String validation///<summary>///Date string validation///</summary>///<param name= "Date" > Date string </param>///<returns> Valid: True, otherwise: false</returns>public static bool Isvaliddate (string date) {R Eturn Regex.IsMatch (date, regexcomm.reg_date);} #endregion #region Email validation//<summary>///Email validation///</summary>///<param name= "Email" > Email string </param>///<returns> valid: True, otherwise: false</returns>public static bool IsVAlidemail (string email) {return Regex.IsMatch (email, regexcomm.reg_email);} #endregion #region Phone Number validation///<summary>///phone number validation///</summary>///<param name= "Phone" > Phone number string            </param>///<returns> Valid: True, otherwise: false</returns>public static bool Isvaildphone (string phone) { return Regex.IsMatch (phone, regexcomm.reg_phone);} #endregion #region Mobile Number validation///<summary>///Mobile number validation///</summary>///<param name= "mobile" > Cell phone number string </param>///<returns> valid: True, otherwise: false</returns>public static bool Isvalidmobile (string Mobile) {return Regex.IsMatch (mobile,reg_mobile);} #endregion #region ID Number validation///<summary>///ID number validation///</summary>///<param name= "Idcard" > ID number string </param>///<returns> valid: True, otherwise: false</returns>public static bool Isvalididcard (string Idcard) {return Regex.IsMatch (Idcard, Regexcomm.reg_idcard);} #endregion #region Date string into a Date object///<summary>///DateStrings converted to date objects///</summary>///<param name= "date" > Date strings </param>///<returns> Date Objects </returns >public static DateTime Castdatetime (string date) {StringBuilder builder = new StringBuilder (); builder. Append (date. Substring (0,4)); builder. Append ("-"); builder. Append (date. Substring (4,2)); builder. Append ("-"); builder. Append (date. Substring (6,2)); return Convert.todatetime (builder. ToString ());} #endregion #region Date object into a date string///<summary>///Date object into a date string///</summary>///<param name= "Date" > Date Object </param>///<returns> date string </returns>public static string Castdatetime (DateTime date) {string Strdate = date. ToString ("Yyyy-mm-dd"); strdate = Strdate.replace ("-", ""); return strdate;} #endregion #region Time Format Validation///<summary>///Time format verification///</summary>///<param name= "Time" > String </ param>///<returns> Correct: True, error: false</returns>public static bool Isvalidtime (string time) {return Regex.IsMatch (time,reg_time);} #endregion}}

C # Validate data validation class