Model binding generic list is null in asp.net mvc

Question

I am binding objects in a razor foreach in the index.html:

VIEW

@using (Ajax.BeginForm(\"Save\", \"Unit\", new AjaxOptions { OnSuccess =         


        

Answer 1

You need to use a for loop not a foreach loop. Also, it would be better to make your Model class have a property which is a collection.

Your model could be something like:

public class UnitsViewModel
{
    public List<Unit> Units { get; set; }

    public class Unit
    {
        [HiddenInput(DisplayValue = false)]
        public int UnitId { get; set; }

        [DataType(DataType.MultilineText)]
        public string Name { get; set; }

        [DataType(DataType.MultilineText)]
        public string ErrorText { get; set; }
    }
}

And you could do the following in your cshtml:

@for (int i = 0; i < Model.Count; i++)
{
    <tr>

        @Html.HiddenFor(m => m.Units[i].UnitId)
        <td>
            @Html.EditorFor(m => m.Units[i].Name)
        </td>
        <td>
            @Html.EditorFor(m => m.Units[i].ErrorText)
        </td>

    </tr>
}