Email Address

[Eric Moore]

Is there a way to use the masked input to force proper email address formatting?
something along the lines of Mask="a25\@a25.LLL" or even better Mask="A3a25\@A3a25.L3"
I'd like it so that when the user types an '@' it skips the rest of the email prefix characters.
Same thing when they type the '.'
Can anyone think of a simple way to do this where I don't have to check the characters pressed in the code behind. That just seems like it wouldn't be a very cost efficient trasaction.

Eric

[Alex Fidanov]

Hi Eric Moore,

The control does not support this, however, what you can do is to validate the input against a regular expression. For example:

public class Context : ViewModelBase

{

    private string emailAddress;

    [RegularExpression(@"\b[A-Z0-9._%-]+@[A-Z0-9.-]+\.[A-Z]{2,4}\b")]

    public string EmailAddress

    {

        get { return emailAddress; }

        set 

        { 

            emailAddress = value; 

            this.OnPropertyChanged("EmailAddress"); 

        }

    }

}

<telerik:RadMaskedTextInput Mask="a30" Value="{Binding EmailAddress, Mode=TwoWay, NotifyOnValidationError=True, ValidatesOnExceptions=True}"/>

In case of invalid input, a red border will be craeted around the control prompting for the error. Moreover, you can customize this by craeting and applying an Error template through the Validation.ErrorTemplate attached property.

Greetings,
Alex Fidanov
the Telerik team