C# Regex Validator Validation

Question

I have this

<asp:RegularExpressionValidator ID="RegularExpressionValidator7" runat="server"    
     ControlToValidate="txtLastName"Display="Dynamic" ErrorMessage="Alphabetic characters only"
     ForeColor="Red" ValidationExpression="^[a-zA-Z'.\-\s]{1,50)$"
></asp:RegularExpressionValidator>

but now i want to change it and make a Regex that will let the user to insert 1 character but not one of the special chars in the expression above, nor to start with one of those special chars(also include "." spacial char".

NOTE : I want those specials to be accepted after the first char is alphabetic

thnx in advance

vkampouris · Accepted Answer · 2011-04-20 10:03:55Z

3

Try this [a-zA-Z][a-zA-Z'.\s\-]{0,50} :D //revised 1 to 0

edited Apr 20, 2011 at 10:03

vkampouris

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answered Apr 19, 2011 at 12:30

Panagiotis Lefas

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1 Comment

vkampouris Over a year ago

That totally did the job. Thnx!! :D

Jude Cooray · Accepted Answer · 2011-04-19 10:09:09Z

2

Try this ^[a-zA-Z'.\-\s]{1}$|^[a-zA-Z'.\-\s]{1}[\w]*$

edited Apr 19, 2011 at 10:09

Jude Cooray

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answered Apr 19, 2011 at 10:03

AabinGunz

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6 Comments

vkampouris Over a year ago

@Abhishek Simon couldnt set property to validator

vkampouris Over a year ago

@Ranhiru Cooray Thanks both of you it works perfectly but i found the need to also validate the "."and to accept the specials after the first is alphabetic

Jude Cooray Over a year ago

@vkline: I obviously cannot take any credit. All I did was just make the answer look prettier :) Glad you could find the answer :)

vkampouris Over a year ago

@Ranhiru Cooray But can you help me with my new problem :). I want this regex to not accept also .(dot) for first char and also after the first character is alphabetic those special chars to be accepted. cause at the monet C# doesnt semm to work. It accepts normally the dot and after the first char is alphabetic it doenst accept any special char.

AabinGunz Over a year ago

@vkline: Does this work? ^[a-zA-Z'.\-\s\.]{1}$|^[a-zA-Z'.\-\s\.]{1}[\w+]*$

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