it is a very useful and time saving feature of visual studio.
when validation failed regularexpressionvalidator control show a predefined error message.
Dim str Pattern As String = "^([0-9a-z A-Z]([-.\w]*[0-9a-z A-Z])*@([0-9a-z A-Z][-\w]*[0-9a-z A-Z]\.) [a-z A-Z])$" Dim CMatch As System.
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But when you fill in an invalid email address like: "fwenrjfw" then the form does not say "E-mail is not valid".
How can I get the form to validate the input as an email address? files got altered in some way or are not updated to the latest version, since they do validate e-mail inputs.
Obviously there are expressions that you could use to determine if the format of an e-mail address is valid but you can also use the System.
Mail Address class to check if an exception occurs when creating the e-mail to determine if it is a valid or not : I suppose it depends on how you are currently sending it, but you might consider checking out this related Stack Overflow discussion along with this one which covers a few different techniques to try and check if your message was sent ().
I have triet in the same manner which you have explained as above.
The part before the @ sign is the local part of the address, and the part after the @ sign is a domain name to which the email message will be sent .
The above email address feedback is the local part and is the domain name to which the email message will be sent . Is Match Method (String, String) - indicates whether the specified regular expression finds a match in the specified input string.
More Info on Validation Settings: Unobtrusive Validation Mode, For this problem, you could refer to the following links.