Data Verification class pagevalidate [regular expression]

Using system;
Using system. Collections. Generic;
Using system. text;
Using system. Text. regularexpressions;
Using system. Web;
Using system. Web. UI. webcontrols;
Namespace shanggu. Utility
{
Public class pagevalidate
{
Private Static RegEx regnumber = new RegEx ("^ [0-9] + $ ");
Private Static RegEx regnumbersign = new RegEx ("^ [+-]? [0-9] + $ ");
Private Static RegEx regdecimal = new RegEx ("^ [0-9] + [.]? [0-9] + $ ");
Private Static RegEx regdecimalsign = new RegEx ("^ [+-]? [0-9] + [.]? [0-9] + $ "); // equivalent to ^ [+-]? \ D + [.]? \ D + $
Private Static RegEx regemail = new RegEx ("^ [\ W-] + @ [\ W-] + \\. (COM | net | org | Edu | mil | TV | biz | info) $ "); // a string of letters or numbers, the same as the [a-zA-Z0-9] syntax
Private Static RegEx regchzn = new RegEx ("[\ u4e00-\ u9fa5]");

# Region numeric string check

/// <Summary>
/// Check whether the key value of the request string is a number and the maximum length is limited.
/// </Summary>
/// <Param name = "req"> request </param>
/// <Param name = "inputkey"> request key value </param>
/// <Param name = "maxlen"> maximum length </param>
/// <Returns> returns the request query string </returns>
Public static string fetchinputdigit (httprequest req, string inputkey, int maxlen)
{
String retval = string. empty;
If (inputkey! = NULL & inputkey! = String. Empty)
{
Retval = Req. querystring [inputkey];
If (null = retval)
Retval = Req. Form [inputkey];
If (null! = Retval)
{
Retval = sqltext (retval, maxlen );
If (! Isnumber (retval ))
Retval = string. empty;
}
}
If (retval = NULL)
Retval = string. empty;
Return retval;
}
/// <Summary>
/// Whether it is a numeric string
/// </Summary>
/// <Param name = "inputdata"> input string </param>
/// <Returns> </returns>
Public static bool isnumber (string inputdata)
{
Match m = regnumber. Match (inputdata );
Return M. success;
}
/// <Summary>
/// Whether a numeric string can contain positive and negative numbers
/// </Summary>
/// <Param name = "inputdata"> input string </param>
/// <Returns> </returns>
Public static bool isnumbersign (string inputdata)
{
Match m = regnumbersign. Match (inputdata );
Return M. success;
}
/// <Summary>
/// Whether it is a floating point
/// </Summary>
/// <Param name = "inputdata"> input string </param>
/// <Returns> </returns>
Public static bool isdecimal (string inputdata)
{
Match m = regdecimal. Match (inputdata );
Return M. success;
}
/// <Summary>
/// Whether the floating point can contain positive and negative numbers
/// </Summary>
/// <Param name = "inputdata"> input string </param>
/// <Returns> </returns>
Public static bool isdecimalsign (string inputdata)
{
Match m = regdecimalsign. Match (inputdata );
Return M. success;
}

# Endregion

# common region item verification
///

// ID card verification
///
// /
//
Public static bool personid (string personid)
{< br> string idval = @ "^ (\ D {15}) (\ D {2} [Xx0-9])? $ ";
return RegEx. ismatch (personid, idval);
}

/// <Summary>
/// Digit Verification
/// </Summary>
/// <Param name = "num"> </param>
/// <Returns> </returns>
Public static bool number (string num)
{
String numval = @ "^ [0-9] * [1-9] [0-9] * $ ";
Return RegEx. ismatch (Num, numval );
}

/// <Summary>
/// Phone Verification
/// </Summary>
/// <Param name = "tel"> </param>
/// <Returns> </returns>
Public static bool telphone (string Tel)
{
String telaval = @ "^ 0 [1-9] \ D {1, 2}-[1-9] \ D {6, 7} $ ";
String telval = @ "^ [1-9] \ D {6, 7} $ ";
String modval = @ "^ (159 | 156 | 153 | 130 | 131 | 132 | 133 | 134 | 135 | 136 | 137 | 138 | 139) \ D {8} $ ";
Return RegEx. ismatch (Tel, telval) | RegEx. ismatch (Tel, modval) | RegEx. ismatch (Tel, telaval );
}
/// <Summary>
/// Verification Date Format (Format: yyyy-mm-dd)
/// </Summary>
/// <Param name = "datetime"> </param>
/// <Returns> </returns>
Public static bool datetimevalidate (string datetime)
{
String dateval =
@ "([0-9] {3} [1-9] | [0-9] {2} [1-9] [0-9] {1} | [0-9] {1} [1-9] [0-9] {2} | [1-9] [0-9] {3 }) -(0 [13578] | 1 [02])-(0 [1-9] | [12] [0-9] | 3 [01]) | (0 [469] | 11)-(0 [1-9] | [12] [0-9] | 30 )) | (02-(0 [1-9] | [1] [0-9] | 2 [0-8]) | ([0-9] {2}) (0 [48] | [2468] [048] | [13579] [26]) | (0 [48] | [2468] [048] | [3579] [26]) 00)-02-29 )";
Return RegEx. ismatch (datetime, dateval );
}
/// <Summary>
/// Verification Date Format (Format: yyyy/mm/DD)
/// </Summary>
/// <Param name = "datetime"> </param>
/// <Returns> </returns>
Public static bool datetime_validate (string datetime)
{
String dateval = "(0 [1-9] | [12] [0-9] | 3 [01]) /(0 [13578] | 1 [02]) | (0 [1-9] | [12] [0-9] | 30) /(0 [469] | 11) | (0 [1-9] | [1] [0-9] | 2 [0-8])/(02 )) /([0-9] {3} [1-9] | [0-9] {2} [1-9] [0-9] {1} | [0 -9] {1} [1-9] [0-9] {2} | [1-9] [0-9] {3 })) | (29/02/([0-9] {2}) (0 [48] | [2468] [048] | [13579] [26]) | (0 [48] | [2468] [048] | [3579] [26 )))";
Return RegEx. ismatch (datetime, dateval );
}
/// <Summary>
/// Email Verification
/// </Summary>
/// <Param name = "email"> </param>
/// <Returns> </returns>
Public static bool emailvalidate (string email)
{
String emailval = @ "^ ([\ W-\.] +) @ (\ [0-9] {1, 3 }\. [0-9] {1, 3 }\. [0-9] {1, 3 }\.) | ([\ W-] + \.) +) ([A-Za-Z] {2, 4} | [0-9] {1, 3}) (\]?) $ ";
Return RegEx. ismatch (email, emailval );

}

/// <Summary>
/// Postal code verification
/// </Summary>
/// <Param name = "postcode"> </param>
/// <Returns> </returns>
Public static bool postcodevalidate (string postcode)
{
String postval = @ "^ [1-9] \ D {5} $ ";
Return RegEx. ismatch (postcode, postval );
}

/// <Summary>
/// Amount Verification
/// </Summary>
/// <Param name = "moneycheck"> </param>
/// <Returns> </returns>
Public static bool money (string moneycheck)
{
String Monval = @ "^ ([1-9] \ D + | [0-9]) (\. \ D ?) * $ ";
Return RegEx. ismatch (moneycheck, Monval );
}
# Endregion

# Region Chinese Detection

1. /// <Summary>
   /// Check for Chinese Characters
   /// </Summary>
   /// <Param name = "inputdata"> </param>
   /// <Returns> </returns>
   Public static bool ishaschzn (string inputdata)
   {
   Match m = regchzn. Match (inputdata );
   Return M. success;
   }

# Endregion

# Region email address
/// <Summary>
/// Whether the floating point can contain positive and negative numbers
/// </Summary>
/// <Param name = "inputdata"> input string </param>
/// <Returns> </returns>
Public static bool isemail (string inputdata)
{
Match m = regemail. Match (inputdata );
Return M. success;
}

# Endregion

# Region others

/// <Summary>
/// Check the maximum length of a string and return the string of the specified length
/// </Summary>
/// <Param name = "sqlinput"> input string </param>
/// <Param name = "maxlength"> maximum length </param>
/// <Returns> </returns>
Public static string sqltext (string sqlinput, int maxlength)
{
If (sqlinput! = NULL & sqlinput! = String. Empty)
{
Sqlinput = sqlinput. Trim ();
If (sqlinput. length> maxlength) // truncate a string by maximum length
Sqlinput = sqlinput. substring (0, maxlength );
}
Return sqlinput;
}

/// <Summary>
/// String Encoding
/// </Summary>
/// <Param name = "inputdata"> </param>
/// <Returns> </returns>
Public static string htmlencode (string inputdata)
{
Return httputility. htmlencode (inputdata );
}
/// <Summary>
/// Set the label to display the encode string
/// </Summary>
/// <Param name = "LBL"> </param>
/// <Param name = "txtinput"> </param>
Public static void setlabel (Label LBL, string txtinput)
{
LBL. Text = htmlencode (txtinput );
}
Public static void setlabel (Label LBL, object inputobj)
{
Setlabel (LBL, inputobj. tostring ());
}
# Endregion
}
}