Posting to a list MVC3

Question

I am trying to get my view to post a List back to the action however it keeps coming in as null.

So my Model has a List of WeightEntry objects.

Exercise Mode

Answer 1

Replace the following loop:

@foreach (var item in Model.Entries)
{
    <tr>
        <td>
            @Html.EditorFor(x => item.Repetition)
         </td>
         <td>
             @Html.EditorFor(x => item.Weight)
         </td>
     </tr>
}

with:

@for (var i = 0; i < Model.Entries.Count; i++)
{
    <tr>
        <td>
            @Html.EditorFor(x => x.Entries[i].Repetition)
         </td>
         <td>
             @Html.EditorFor(x => x.Entries[i].Weight)
         </td>
     </tr>
}

or even better, use editor templates and replace the loop with:

@Html.EditorFor(x => x.Entries)

and then define a custom editor template that will automatically be rendered for each element of the Entries collection (~/Views/Shared/EditorTemplates/WeightEntry.cshtml):

@model WeightEntry
<tr>
    <td>
        @Html.EditorFor(x => x.Repetition)
     </td>
     <td>
         @Html.EditorFor(x => x.Weight)
     </td>
 </tr>

The the generated input elements will have correct names and you will be able to successfully fetch them back in your POST action.