MVC EditorFor and data attributes - http://stackoverflow.com/questions/27559582/input-field-set-as-value-instead-of-value

Controller.cs

namespace WebApplication4.Controllers
{
    // Some POCO's
    public class DesignParam
    {
        public string ParamID { get; set;  }
    }
    public class Foo
    {
        public int ID { get; set;  }
        public string Title { get; set; }

        public DesignParam[] DesignParams { get; set; }
    }

    public class HomeController : Controller
    {
        public ActionResult Contact()
        {
            ViewBag.Message = "Your contact page.";
            var model = new Foo {ID = 1234, Title = "FOO", 
               DesignParams = new []
               { 
                   new DesignParam { ParamID = "1234" }  // Set the default value ON the actual model
               }}; 

            return View(model);
        }
    }
}

View.cshtml

@model WebApplication4.Controllers.Foo

<div class="editor-field">
    @Html.Editor("Title", // This is a property of Model - the value is reflected off the property
                new
                {
                    htmlAttributes = new
                    {
                        @class = "form-control text-right",
                        @type = "text",
                        id = "_" + 54,
                        data_uomid = 9832,
                        data_measureid = 12312
                    }
                })
    

    @Html.Editor("DesignParams[0].ParamID", // This doesn't work.
        new
        {
            htmlAttributes = new
            {
                @class = "form-control text-right",
                @type = "text",
                id = "_" + 54,
                data_uomid = 9832,
                data_measureid = 12312
            }
        })

    @Html.EditorFor(m => m.DesignParams[0].ParamID, // This works, and value is reflected off the property
        new
        {
            htmlAttributes = new
            {
                @class = "form-control text-right",
                @type = "text",
                id = "_" + 54,
                data_uomid = 9832,
                data_measureid = 12312
            }
        })
</div>