Radio Button Enum Helper for model with resource file - asp.net-mvc

Question

Problem:
Need to bind a strongly typed model which has a Gender as enum property. Also i like to show a Display text from a Resource file.
My Model is
public enum GenderViewModel
{
[Display(Name = "Male", ResourceType = typeof(Resources.Global), Order = 0)]
Male,
[Display(Name = "Female", ResourceType = typeof(Resources.Global), Order = 1)]
Female
}
Initially, I tried following http://romikoderbynew.com/2012/02/23/asp-net-mvc-rendering-enum-dropdownlists-radio-buttons-and-listboxes/
But it was bit complex and i was unable to correct my HTML however i want.
Then i had a look of simple and easy implementation from stackoverflow, pass enum to html.radiobuttonfor MVC3
and used a HtmlHelper in cshtml like below
#Html.RadioButtonForEnum(m => m.Gender)
HTML Produced
<label for="_Gender_Male">
<input type="radio" value="Male" name="Gender" id="_Gender_Male"
data-val-required="Gender is required" data-val="true" checked="checked">
<span class="radiotext">Male</span>
</label>
<label for="_Gender_Female">
<input type="radio" value="Female" name="Gender" id="_Gender_Female">
<span class="radiotext">Female</span></label>
It really simple and works well for me. But i am not getting values
from Resource files. My application is multilingual and I use a Global
Resource file for different language support.
Issue:
Male displayed should be Man and Female displayed should be Kvinna should be from Resource file, as my current culture is sv-se
Could any one help/ provide a simple solution which has a good control over HTML?

Answer 1

All you have to do is adapt my original helper so that it takes into account the DisplayAttribute:
public static class HtmlExtensions
{
public static MvcHtmlString RadioButtonForEnum<TModel, TProperty>(
this HtmlHelper<TModel> htmlHelper,
Expression<Func<TModel, TProperty>> expression
)
{
var metaData = ModelMetadata.FromLambdaExpression(expression, htmlHelper.ViewData);
if (!metaData.ModelType.IsEnum)
{
throw new ArgumentException("This helper is intended to be used with enum types");
}
var names = Enum.GetNames(metaData.ModelType);
var sb = new StringBuilder();
var fields = metaData.ModelType.GetFields(
BindingFlags.Static | BindingFlags.GetField | BindingFlags.Public
);
foreach (var name in names)
{
var id = string.Format(
"{0}_{1}_{2}",
htmlHelper.ViewData.TemplateInfo.HtmlFieldPrefix,
metaData.PropertyName,
name
);
var radio = htmlHelper.RadioButtonFor(expression, name, new { id = id }).ToHtmlString();
var field = fields.Single(f => f.Name == name);
var label = name;
var display = field
.GetCustomAttributes(typeof(DisplayAttribute), false)
.OfType<DisplayAttribute>()
.FirstOrDefault();
if (display != null)
{
label = display.GetName();
}
sb.AppendFormat(
"<label for=\"{0}\">{1}</label> {2}",
id,
HttpUtility.HtmlEncode(label),
radio
);
}
return MvcHtmlString.Create(sb.ToString());
}
}
Now if you have decorated some of the enum values with the DisplayAttribute, the values will come from the resource file.

Answer 2

You should replace in the extension method were it uses name for the <label> to use the resource you would like.
You should use a code kind of this one I adapted from here:
var type = typeof(metaData.ModelType);
var memInfo = type.GetMember(name);
var attributes = memInfo[0].GetCustomAttributes(typeof(DisplayAttribute), false);
var description = ((DisplayAttribute)attributes[0]).GetDescription();
And then put description into the <label>.
I've not tested it!