I am trying to use a regular expression to validate a phone number and return an error when an invalid number or phone number is submitted MVC Code lt ol class row gt lt li class cell style width 20 gt Phone Number lt li gt lt li class cell last style width 60 gt Html TextBoxFor model gt model PhoneNumber new class textbox Html ValidationMessageFor model gt model PhoneNumber lt li gt lt ol gt C Code DataType DataType PhoneNumber Display Name Phone Number Required ErrorMessage Phone Number Required RegularExpression 0-9 3 - 0-9 3 - 0-9 4 ErrorMessage Entered phone format is not valid public string PhoneNumber get set However the input box will not show a message to the user indicating that the phone number which was submitted is not valid

Phone Number Validation MVC

The Solution to Phone Number Validation MVC is

Model

[Required(ErrorMessage = "You must provide a phone number")]
[Display(Name = "Home Phone")]
[DataType(DataType.PhoneNumber)]
[RegularExpression(@"^\(?([0-9]{3})\)?[-. ]?([0-9]{3})[-. ]?([0-9]{4})$", ErrorMessage = "Not a valid phone number")]
public string PhoneNumber { get; set; }

View:

@Html.LabelFor(model => model.PhoneNumber)
@Html.EditorFor(model => model.PhoneNumber)
@Html.ValidationMessageFor(model => model.PhoneNumber)

~ Answered on 2015-03-06 18:17:43

Phone Number Validation MVC

The Solution to Phone Number Validation MVC is

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