I am attempting to use a property on my model that is of type Dictionary<string, string>. This dictionary is one of several other properties on the model, and I am using the dictionary as a key/value store to produce a 'dynamic' form.

E.G.:

User
  Name
  Settings
    A
    B

I want to be able to submit and save any changes to settings A and B. I can submit the form and get my posted values in all my other fields, however the dictionary gets set to null.

<%=Html.LabelFor(m => m.Name)%>
<%=Html.DisplayFor(m => m.Name)%>
<%=Html.LabelFor(m => m.Settings["A"])%>
<%=Html.TextBoxFor(m => m.Settings["A"])%>
<%=Html.LabelFor(m => m.Settings["B"])%>
<%=Html.TextBoxFor(m => m.Settings["B"])%>

Is there a better way to produce the dynamic form with a key/value pair? The actual code will be using partials (there several hundred variations), and the above is only a contrived example.