验证

 

/**//// <summary> 
        /// check DateTime. Example:2005-9-2 
        /// </summary> 
        public bool IsValidDate(string str) 
        { 
            return Regex.IsMatch(str, @"^(((((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-)))|((((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/))$");  
        } 


        /**//// <summary> 
        /// check Long DateTime　Example:2005-9-2 13:20:37 
        /// </summary> 
        public bool IsValidDateLong(string str) 
        { 
            return Regex.IsMatch(str, @"^(((((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)|(((((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)$");  
        } 


        /**//// <summary>
        /// String To DateTime,return DateTime
        /// </summary>
        public DateTime StringToDateTime(string str)
        {
            return DateTime.Parse(str.Trim());
        }

        /**//// <summary>
        /// DateTime To String,return string.Example:1900-01-01
        /// </summary>
        public string DateTimeToString(DateTime datetime)
        {
            return datetime.ToString("yyyy-MM-dd");
        }

        /**//// <summary>
        /// DateTime To String,return string.Example:19000101000000
        /// </summary>
        public string DateTimeToStringLong(DateTime datetime)
        {
            return datetime.ToString("yyyyMMddhhmmss");
//            return datetime.ToString("yyyy-MM-dd");
        }

        /**//// <summary>
        /// create random number
        /// </summary>
        public int GetRandomNum(int up,int down)   
        {   
  
            Random ro=new Random(unchecked((int)DateTime.Now.Ticks));   
  
            return ro.Next(up,down);   
  
        }

        /**//// <summary> 
        /// is or not Numberic
        /// retrun true or false
        /// </summary> 
        public bool IsNumberic(string str) 
        { 
            try 
            { 
                int var1=Convert.ToInt32 (str); 
                return true; 
            } 
            catch 
            { 
                return false; 
            } 
        } 

        /**//// <summary> 
        /// when you enter website,please run IsValidSting(string).
        /// replace '|;|--| 
        /// retrun new string
        /// </summary> 
        public string IsValidSting(string str) 
        { 
            str = str.Replace("'","''"); 
            str = str.Replace(";",","); 
            str = str.Replace("--","_"); 
            str = str.Replace(" ","&nbsp;"); 
            return str;  
        }

        /**//// <summary> 
        /// after you enter website,please run IsValidToSting(string).
        /// replace (new string)
        /// retrun old string
        /// </summary> 
        public string  IsValidToSting(string str) 
        { 
            str = str.Replace("''","'"); 
            str = str.Replace(",",";"); 
            str = str.Replace("_","--"); 
            str = str.Replace("&nbsp;"," "); 
            return str;  
        }

        /**//// <summary> 
        /// check character string exist key words
        /// retrun true or false
        /// </summary> 
        public bool CheckString(string str) 
        { 
            bool ck=true;
            if(str.IndexOf("'")!=-1)
            {
                return false;
            }
            if(str.IndexOf(";")!=-1)
            {
                return false;
            }
            if(str.IndexOf("--")!=-1)
            {
                return false;
            }
            if(str.IndexOf(" ")!=-1)
            {
                return false;
            }
            return ck;
        }

        /**//// <summary> 
        /// check email
        /// </summary> 
        public bool IsValidEmail(string str) 
        { 
            return Regex.IsMatch(str, @"^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$");  
        } 


        /**//// <summary> 
        /// check web URL
        /// </summary> 
        public bool IsValidUrl(string str) 
        { 
            return Regex.IsMatch(str, @"^(http://([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?)|(([\w-]+\.)+[\w-]+(/[\w- ./?%&=]*)?)$");  
        } 

        /**//// <summary> 
        /// check IDCard
        /// return true or false
        /// </summary> 
        public bool IsValidIDCard(string str) 
        { 
            return Regex.IsMatch(str,@"^(\d{18}|\d{15})+$");  
        } 
        /**//// <summary> 
        /// check Pcode
        /// return true or false
        /// </summary> 
        public bool IsValidPcode(string str) 
        { 
            return Regex.IsMatch(str,@"^(\d{6})+$"); 
        } 
        /**//// <summary> 
        /// check tel
        /// Example:0599-1234567-0000 or 0599-1234567 or 13912345678 or 025-12345678
        /// return true or false
        /// </summary> 
        public bool IsValidTel(string str) 
        { 
            return Regex.IsMatch(str,@"^((\d{11})|((\d{3}|\d{4})-(\d{7}|\d{8}))|((\d{3}|\d{4})-(\d{7}|\d{8})-(\d{4})))$"); 
        } 


        /**//// <summary> 
        /// check string is or not english and _
        /// Example:abcd_abcd
        /// return true or false
        /// </summary> 
        public bool IsValidEN(string str) 
        { 
            return Regex.IsMatch(str,@"^\w+$"); 
        }