Regular expression

Posted by Sibin.rhythm under ASP.NET on 8/29/2009 | Views : 1935 | Status : [Member] | Replies : 4

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Please give me a regular expression which satisfy Charrecters and numbers
<br><!,>,<dfdsdf,. these symbols never accept
valid ------> anu , anish, anu897
invalid --------> <anu ,anu< ,an<dd,<and>

can anybody help me??????

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Posted by: Lakhangarg on: 8/30/2009 [Member] [Moderator] Silver

0	Hi Sibin -- i think you need to write a javascript function for this. Save the values in an array that you don't want to include then compare you value with this set of values. Thanks & Regards Lakhan Pal Garg http://lakhangarg.blogspot.com/ Sibin.rhythm, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Prashant_p2p on: 9/1/2009 [Member] Starter

0	var re=/([a-zA-Z0-9]+,)+/; use this regular expression . Regards, prashant, cgg, hyderabad Sibin.rhythm, if this helps please login to Mark As Answer. \| Alert Moderator

Posted by: Rtpharry on: 9/3/2009 [Member] [MVP] Bronze

0	Hey You can do this with the following code: using System.Text.RegularExpressions; public bool TestForLettersAndNumbers(string input) { Regex rx = new Regex(@"^([A-Za-z0-9]+)$"); return rx.IsMatch(input); } You would use it like: bool HasPassed = TestForLettersAndNumbers("somevalidcode"); Dont forget that as per your requirements this method wont allow puntuation or spaces. Sibin.rhythm, if this helps please login to Mark As Answer. \| Alert Moderator

Hey

You can do this with the following code:


    using System.Text.RegularExpressions;



    public bool TestForLettersAndNumbers(string input)

    {

        Regex rx = new Regex(@"^([A-Za-z0-9]+)$");



        return rx.IsMatch(input);

    }

You would use it like:

bool HasPassed = TestForLettersAndNumbers("somevalidcode");

Dont forget that as per your requirements this method wont allow puntuation or spaces.

Sibin.rhythm, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: Rtpharry on: 9/3/2009 [Member] [MVP] Bronze

0	FYI vb.net version would look like Imports System.Text.RegularExpressions Public Function TestForLettersAndNumbers(ByVal input As String) As Boolean Dim rx As New Regex("^([A-Za-z0-9]+)$") Return rx.IsMatch(input) End Function used like Dim HasPassed As Boolean = TestForLettersAndNumbers("somevalidcode") Sibin.rhythm, if this helps please login to Mark As Answer. \| Alert Moderator

FYI vb.net version would look like

Imports System.Text.RegularExpressions



Public Function TestForLettersAndNumbers(ByVal input As String) As Boolean

   Dim rx As New Regex("^([A-Za-z0-9]+)$")

   Return rx.IsMatch(input)

End Function

used like

Dim HasPassed As Boolean = TestForLettersAndNumbers("somevalidcode")

Sibin.rhythm, if this helps please login to Mark As Answer. | Alert Moderator

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