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ASP.Net RegularExpression Validators

Hi,

I am looking for a regular expression that validates to ensure that a min. of 2 and max. of 8 alpha characters (including spaces) are allowed without counting any leading and trailing spaces. Following regular expression doesn't seem to work (see ValidationExpression below). Could someone please tell me what am I missing and provide a correct regex for this?

<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ControlToValidate="txtProductName" CssClass="ErrorMessage" Display="Dynamic" ValidationExpression="^[^\s]+[a-zA-Z\s]{2,8}[^\s]+$" ErrorMessage="Minimum 2 and maximum 8 characters allowed." SetFocusOnError="True" />

Many thanks in advance.

David H.H.Lee

Try this:

ValidationExpression="^(\s)*[a-zA-Z0-9_\s]{2,8}(\s)*$"

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ValidationExpression="^(\s)*[\w\s]{2,8}(\s)*$"

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Bobby X

ASKER

None of your regex works.
The rule is: A minimum of 2 and a maximum of 8 Alpha characters (no numbers) and whitespaces in between the characters are allowed. For example, these are allowed:
"abcdefgh" - this has a maximum of 8 Alpha characters (no numbers)
"ab de gh" - this has a maximum of 8 Alpha characters (no numbers) w/ whitespaces in between
" abcdefgh " - this has a maximum of 8 Alpha characters (no numbers) with 1 or more leading & trailing spaces
" ab de gh " - this has a maximum of 8 Alpha characters (no numbers) w/ whitespaces in between but has 1 or more leading & trailing spaces
"ab" - this has a minimum of 2 Alpha characters (no numbers)
" ab " - this has a minimum of 2 Alpha characters (no numbers) with 1 or more leading & trailing spaces

ASKER CERTIFIED SOLUTION

David H.H.Lee

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