How can I get the property name in my MVC3 custom Editor Template

Question

I have an enumeration in my project and I\'ve created a custom editor template for this enumeration. So, now any model I have with a property with a type of this enumeration, wi

Answer 1

For future reference (old question), I found this: System.Web.Mvc.Html.NameExtensions.

Using those, you can do something like

<input type=text" name="@Html.NameFor(m => m.MyProperty)">

And you'll get

<input type=text" name="MyProperty">

There are several other related helpers in this extension class. This method does more than just get the property name, though. For example, you could use m.MyProperty.MySubProperty and you'd get a valid HTML name for posting.

Answer 2

I found the answer in a book I have here. Actually, it got me close, but I then could google the rest based on what I found.

Here is what I needed to add to my editor template.

@{var fieldName = ViewData.TemplateInfo.HtmlFieldPrefix;}
<select id="@fieldName" name="@fieldName"> 

Answer 3

You can get the property name in the editor template via

@{
   string name = ViewData.ModelMetadata.PropertyName;
}

Answer 4

How about the following template:

@model ItemEnumerations.ItemType
@{
    var values = 
        from value in Enum.GetValues(typeof(ItemType)).Cast<ItemType>()
        select new { ID = (int)value, Name = value.ToString() };
    var list = new SelectList(values , "ID", "Name", (int)Model);
}
@Html.DropDownList("", list)

This way you don't need to manually render <select> and <option> tags and you are reusing the existing DropDownList helper.

Answer 5

You can create a helper to use that inside your view, which is explained here

And you can use this piece of code to get the name.

 public static class GenericHelper<T>
 {
     public static String GetPropertyName<TValue>(Expression<Func<T, TValue>> propertyId)
     {
         var operant = (MemberExpression)((UnaryExpression)propertyId.Body).Operand;
         return operant.Member.Name;
     }
}

I assume the default helpers do the same, such as HiddenFor, as they also use Expression<Func<TModel, TProperty>>

Answer 6

As mentionned in the accepted answer, ViewData.TemplateInfo.HtmlFieldPrefix gives you the property name inside an EditorTemplate.

I think it is worth saying that you can use an empty string inside the HtmlHelper functions if your goal is to generate an input/select. It will use the model's property name.

@Html.TextBox("", theValue, new { @class = "form-control" })

or

@Html.DropDownList("", new List<SelectListItem>(), theValue, new { @class = "form-control" })