[Phone]
        [Display(Name = "Work Phone")]
        [DisplayFormat(DataFormatString = "{0:###-###-####}", ApplyFormatInEditMode = true)]
        public string WorkPhone { get; set; }

@Html.EditorFor(model => model.WorkPhone, new { htmlAttributes = new { @class = "form-control" } })

@Html.EditorFor(model => model.WorkPhone, "{0:###-###-####}", new { htmlAttributes = new { @class = "form-control" } })