asp.net mvc convert \n new line to html breaks

The following class implements a HtmlHelper that properly encodes the text:

public static class HtmlExtensions
{
    public static MvcHtmlString Nl2Br(this HtmlHelper htmlHelper, string text)
    {
        if (string.IsNullOrEmpty(text))
            return MvcHtmlString.Create(text);
        else
        {
            StringBuilder builder = new StringBuilder();
            string[] lines = text.Split('\n');
            for (int i = 0; i < lines.Length; i++)
            {
                if (i > 0)
                    builder.Append("<br/>\n");
                builder.Append(HttpUtility.HtmlEncode(lines[i]));
            }
            return MvcHtmlString.Create(builder.ToString());
        }
    }
}

It’s easy to use in your views:

<%= Html.Nl2Br(Model.MultilineText) %>

Or with Razor:

@Html.Nl2Br(Model.MultilineText)