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I have a model and each model derives from a base class, that stores a list of translations.

public abstract class BaseObject
  public List<LocalizationPart> Translations { get; set; }

public class LocalizationPart
  public string Culture { get; set; }
  public List<Translation> Translations { get; set; }

public class Translation
  public string Property { get; set; }
  public string Text { get; set; }

public class CivilStatus : BaseObject
  public string Name { get; set; }
  public string Description { get; set; }

this Translations list gets filled during the get or create of an object.

Now I have an edit screen and from this translations list, I get the translations that I need. (Example: on the object CivilStatus, I can have a name and description property, so each property can have a translation per language.) So in the create and edit page I list the appropriate edit fields below the @Html.Label(...).

<div class="editor-label">
<div class="editor-field">
  @if (Attribute.IsDefined(property, typeof(LocalizableAttribute)))
    foreach (var translation in Model.Translations)
       @Html.Label(translation.Culture, new {@class = "vt-cultureid"})
       var translation = translation.Translations.SingleOrDefault(t => t.Property == property.Name);
       if (contentItemVersionRecord != null)
         @Html.EditorFor(m => contentItemVersionRecord.Translation)<br />

But when I press the save button, the translations list is null when I look at it in the HttpPost action.

public ActionResult Create(CivilStatus civilstatus) { ... }

How can I make it that the translations are bound to the model?
Updated 4-Nov-13 21:36pm
Sergey Alexandrovich Kryukov 4-Nov-13 9:59am    
You model looks like a 3-level composition tree with a BaseObject in root, but you this class is abstract. So, you cannot have any instances of the model, unless you derive a non abstract descendant from this root class. Your question and sample is at least incomplete.
KenBonny 5-Nov-13 3:35am    
You are right and I will update my question.

1 solution

To do it right, I had to iterate over the two lists with a for loop, not a foreach loop. If I use

@Html.TextBoxFor(m => m.Translations[i].Translations[j].Translation)

It does pass it correctly.

To allow for the interfaces to be used, I had to create my own model binder.

More information can be found in this article:The Features and Foibles of ASP.NET MVC Model Binding[^]
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