MVC4: On validation error, change the textbox color to red

Question

I have a form which has some text boxes, and when the textbox doesn't contain valid value I get the error message but the textbox color doesn't change to red.

This is what I have

Model

public class AddCompany
{
    public int Id { get; set; }

    [Required(ErrorMessage = "*Name is required")]
    public string Name { get; set; }

    [Required(ErrorMessage = "*Address is required")]
    [RegularExpression(@"^\(?([0-9]{4})\)?([A-Z]{2})",ErrorMessage = "*Not a valid Zip Code, Must be in format 1234AB")]
    public string Address { get; set; }

    [Required(ErrorMessage = "*Phone Number is required")]
    [DataType(DataType.PhoneNumber)]
    [RegularExpression(@"^\(?([0-9]{10})", ErrorMessage = "*Not a valid number, must be 10 numbers")]
    public string Phone { get; set; }

    [DataType(DataType.DateTime)]
    public DateTime DateTimeAdded { get; set; }
    public string Comment { get; set; }

}

View

@model CrmTestProject.Models.ViewModels.AddCompany

@{
    ViewBag.Title = "AddCompany";
    Layout = "~/Views/shared/_BootstrapLayout.basic.cshtml";
}
<script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script>

<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.js")"></script>

<h2>AddCompany</h2>
@Html.ValidationSummary(true)

<fieldset class="form-horizontal">
    <legend>New Company <small>Add</small></legend>
    @using (Html.BeginForm("AddCompany", "Company"))
    {
        <div class ="controls">
            <label class="label">@Html.Label("Name")</label>
            <div class="input-block-label">@Html.EditorFor(model=>model.Name)
                @Html.ValidationMessageFor(model=>model.Name)
            </div>
            <br/>
            <label class="label">@Html.Label("Address")</label>
            <div class="input-block-level">@Html.EditorFor(model=>model.Address)
                @Html.ValidationMessageFor(model=>model.Address)
            </div>
            <br/>
            <label class="label">@Html.Label("Phone")</label>
            <div class="input-block-level">@Html.EditorFor(model=>model.Phone)
                @Html.ValidationMessageFor(model=>model.Phone)
            </div>
            <br/>
            <div class="input-block-level">@Html.TextAreaFor(model=>model.Comment)</div>
        </div>
        <div class="form-actions" id="buttons">
            <button type="submit" class="btn btn-primary" id="Submit">Save changes</button>
            @Html.ActionLink("Cancel", "CompanyIndex", new { @class = "btn" })
        </div>
    }
</fieldset>

Browser ScreenShot

As you can see I get the error message but I also want the textbox and preferably error message color to be red. I don't know if it is due to bootstrap. But when I check this blog for validation things work perfectly here. Can anyone give me some suggestion?

Answer 1

Add a class in css and change its colour like this:

@Html.ValidationMessageFor(model=>model.Address),"*Address is required",new { @class = "redclass" })