my view dont Bind the viewModel MVC4 - asp.net-mvc-4

Question

Sorry if I am not seeing anything wrong, but my View don't bind my ViewModel. I debugged many times, and there's no Data in the model when the breakpoint is on the action line.
Other views of the project works fine.
Action:
[HttpPost]
public ActionResult Index_Funcionario(FuncionariosViewModel viewModel)
{
...
View
#model ZebraStudio.Models.FuncionariosViewModel
#{
ViewBag.Title = "Index_Funcionario";
}
<div class="main-field">
<div class="linha-cabecalho">
<div class="aba">Consulta</div>
<div class="area">Funcionários > Consultar</div>
</div>
<div class="sub-field">
<div class="search-field">
#using (Html.BeginForm())
{
<div class="floatleft">
#Html.RadioButton("TipoFiltro", "1", new { #class = "radioFloat" })
<div >Código: #Html.TextBoxFor(model => model.cod_Usuario, new { #class = "customeditor"})</div>
</div>
<div class="floatleft">
<div class="radioFloat">#Html.RadioButton("TipoFiltro", "2", new { #class = "radioFloat" })</div>
<div>Nome: #Html.TextBoxFor(model => model.nome, new { #class = "customeditor"})</div>
</div>
<div class="floatleft">
#Html.RadioButton("TipoFiltro", "3", true, new { #class = "radioFloat" })
<div class="inline">Listar Todos.</div>
</div>
<br />
<input type="submit" value="Buscar" class="searchbutton"/>
}
</div>
<table class="search-result">
<tr>
<th>Código</th>
<th>Nome</th>
<th>Email</th>
<th>Tipo de Usuário</th>
<th>Ações</th>
</tr>
#foreach (var usuario in Model.usuarios)
{
<td>#usuario.UserId</td>
<td>#usuario.Nome</td>
<td>#User.Identity.Name</td>
<td>#foreach (var role in Roles.GetRolesForUser())
{
#role
}
</td>
<td></td>
}
</table>
</div>
ViewModel
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Web;
namespace ZebraStudio.Models
{
public class FuncionariosViewModel
{
public IEnumerable<Usuario> usuarios;
public Usuario usuario;
public string nome;
[DataType(DataType.EmailAddress)]
public string Email;
public string password;
public int opcao_Selecionada;
public int cod_Usuario;
}
}
Anything Wrong? Please Help-me.

Answer 1

ASP.Net MVC model binding does not support fields.
You need to change those to properties.
You can use auto-implemented properties:
public string Email { get; set; }