Hi Sam,

To me it looks like that you are starting and ending your regular expression wrong.

I assme that you found the regex here: http://www.regular-expressions.info/email.html

Try this instead.

^[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\]$

Or try to have a look on this post: http://our.umbraco.org/forum/umbraco-pro/contour/25041-regular-expression-for-valid-email-is-case-sensitive

Hope this helps,

/Dennis

Heh, thank you for that - a good step in the right direction I think. The page shows a different error now of:

parsing "^[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?|[a-z0-9-]*[a-z0-9]:(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21-\x5a\x53-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])+)\]$" - Too many )'s.

I tried the regex from the linked post, which returns the old "Specified cast is not valid" error

It seems strange that when inspecting the page, the form class="field-validation-valid" changes to valid when any data is input, and does not seem to check the regex at all!

Hi Sam,

What if you tried with this regex for validation of the email,

^[_A-Za-z0-9-\\+]+(\\.[_A-Za-z0-9-]+)*@[A-Za-z0-9-]+(\\.[A-Za-z0-9]+)*(\\.[A-Za-z]{2,6})$

Did you still get the "Specified cast is not valid" error or?

Hope this helps,

/Dennis

Hi Dennis,

With that regex, I still see the same error of "Specified cast is not valid"

I've taken a grab of the source that is being formed by the field when it contains the data "asfd".

Hi Sam,

I just tried to install the Contour 3.0.21 into a fresh Umbraco install version 7.1.8, and then I created a new form based on the standard pre-defined contact form.

And for the email field in the pre-defined contact form, it uses this regular expression:

^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.[a-z]{2,4})$

/Dennis

I'm using Umbraco Contour version 3.0.21 and Umbraco 7.1.8

At this point - I'm doubting that it's the regex itself that is causing the issue: the field seems not to respond to input that is valid / invalid against regex in any way.

A regex on a test field of [abc] still will not give me any validation messages :(

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