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RegExpValidator MXML

Hey. I have a problem with regex. I have a RegExpValidator in MXML and I want this to be wrong when the source contains a or b. My RegExpValidator

<mx:RegExpValidator source="{value}"
                    property="text"
                    expression='.*[^ab].*'
                    valid="isValid(event)"
                    invalid="isInvalid(event)"/>

My expression expression='.*[^ab].*' When it is just a, b or and b (one or more times), the expression is invalid: OK
When it is all the rest, the expression is valid: OK
But when it is a or b and b with another caractere, it also works. What do I need to change to make this invalid?

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2 answers

abc. .*[^ab].*, .* ab, [^ab] c, .* .

, , ( ), , .

:

^[^ab]*$

, a b. ^ , $ .

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-, RegExp. : P

: http://gskinner.com/RegExr/

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