Controller always receive null from json only a specify field - asp.net-mvc

Question

Hy folks!
First: I've found these posts before start my question here: questions/11344035 - questions/15939944 - questions/9412449 - questions/9162359 - questions/1551263.
Second: none of then solved my problem... :(
Well, this is my first MVC4 project, and i tryed send per $.ajax my data as follows:
var exames = {
"ExameId": "",
"Valor": "",
"CodLab": "",
"Dias": "",
"LayoutId": ""
};
var apoio = {
"ApoioId": "",
"Razao": "",
"Endereco": "",
"Bairro": "",
"Cidade": "",
"Uf": "",
"Cep": "",
"Telefone": "",
"Fax": "",
"Email": "",
"CodLab": "",
"Obs": "",
"Status": "",
"ArqRotina": "",
"ArqApoio": "",
"Senha": "",
"Exames": []
};
apoio.ApoioId = $("#hdApoioId").val();
apoio.Razao = $("#Razao").val();
apoio.Endereco = $("#Endereco").val();
apoio.Bairro = $("#Bairro").val();
apoio.Cidade = $("#Cidade").val();
apoio.Uf = $("#Uf").val();
apoio.Cep = $("#Cep").val();
apoio.Telefone = $("#Telefone").val();
apoio.Fax = $("#Fax").val();
apoio.Email = $("#Email").val();
apoio.CodLab = $("#CodLab").val();
apoio.Obs = $("#Obs").val();
apoio.Status = $("#Status").val();
apoio.ArqRotina = $("#ArquivoRotina").val();
apoio.ArqApoio = $("#ArquivoApoio").val();
apoio.Senha = $("#SenhaLab").val();
var tbody = document.getElementById(idTabExames).tBodies[0];
var numLinhas = tbody.rows.length;
for (var i = 0; i < numLinhas; i++) {
exames.ExameId = tbody.rows[i].cells[0].firstChild.nodeValue.toString();
exames.CodLab = tbody.rows[i].cells[1].firstChild.nodeValue;
exames.Dias = tbody.rows[i].cells[2].firstChild.nodeValue;
exames.Valor = tbody.rows[i].cells[3].firstChild.nodeValue;
exames.LayoutId = tbody.rows[i].cells[4].firstChild.nodeValue;
apoio.Exames.push(exames);
exames = {
"ExameId": "",
"CodLab": "",
"Dias": "",
"Valor": "",
"LayoutId": "",
"ApoioId": ""
};
}
$.ajax({
url: '/ApoioExames/Create',
data: JSON.stringify(apoio),
type: 'POST',
contentType: "application/json",
dataType: 'json',
processData: true,
success: function (result) {
if (result.Success == "1") {
if (console.window) console.log('sucess: '+result);
window.location.href = "/ApoioExames/Index";
}
else {
alert(xhr.status);
alert('Error: ' + xhr.responseText);
}
},
error: function (xhr, ajaxOptions, thrownError) {
alert(xhr.status);
alert(thrownError);
}
});
Applying JSON.stringfy(apoio), I get a return of valid json (verified with http://jsonlint.com) but the apoio.Exames field (only it) is null on my controller. Always!
[HttpPost]
public JsonResult Create(ApoioModel apoio)
{
try
{
if (ModelState.IsValid)
{
if (apoio.Id > 0)
{
var exames = db.DbApoioExames.Where(p => p.ApoioId == apoio.Id);
foreach (ApoioExmModel exm in exames)
db.DbApoioExames.Remove(exm);
foreach (ApoioExmModel exm in exames)
db.DbApoioExames.Add(exm);
db.Entry(apoio).State = EntityState.Modified;
}
else
{
db.DbApoio.Add(apoio);
}
db.SaveChanges();
//If (Sucess== 1) { Salvar/Atualizar } else { Exception }
return Json(new { Success = 1, ApoioId = apoio.Id, ex = "" }, JsonRequestBehavior.AllowGet);
}
}
catch (Exception ex)
{
return Json(new { Success = 0, ex = ex.Message }, JsonRequestBehavior.AllowGet);
}
return Json(new { Success = 0, ex = new Exception("Impossível Salvar").Message }, JsonRequestBehavior.AllowGet);
}
My model ApoioModel and ApoioExmModel are:
[Table(name: "apoio", Schema = "public")]
public class ApoioModel
{
[Key, Column("id", Order = 0)]
[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public int Id { get; set; }
[Column("razao")]
[Display(Name = "Razão Social")]
[DataType(DataType.Html)]
[Required(ErrorMessage = "A razão social deve ser informada")]
public string Razao { get; set; }
[Display(Name = "Endereço")]
[Column("endereco")]
public string Endereco { get; set; }
[Display(Name = "Bairro")]
[Column("bairro")]
public string Bairro { get; set; }
[Display(Name = "Cidade")]
[Column("cidade")]
public string Cidade { get; set; }
[Display(Name = "CEP")]
[Column("cep")]
public string Cep { get; set; }
[Display(Name = "UF")]
[Column("uf")]
[StringLength(2)]
public string Uf { get; set; }
[Display(Name = "Status")]
[Range(0, 1), Column("status")]
public int Status { get; set; }
public virtual ICollection<ApoioExmModel> ApoiosExm { get; set; }
}
Table(name: "apoioexm", Schema = "public")]
public class ApoioExmModel
{
[Key, Column("id")]
[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public int? Id { get; set; }
[Column("exame_id")]
public int ExameId { get; set; }
[Column("apoio_id")]
public int ApoioId { get; set; }
[Column("valor")]
public float Valor { get; set; }
[Column("codlab")]
public string CodLab { get; set; }
[Column("dias")]
public float Dias { get; set; }
[Column("layout_id")]
public int LayoutId { get; set; }
[ForeignKey("ApoioId")]
public virtual ApoioModel Apoios { get; set; }
}
I am trying create a CRUD master/detail. I am using Postgre, not SQL Server, but this is not the problem.
When I am debugging in Chrome, I view the data is transfering ok!
Request U R L : h t t p : / / l o c a l h o s t:9795/ApoioExames/Create
Request Headersview source
Accept:application/json, text/javascript, */*; q=0.01
Content-Type:application/json
Origin:h t t p : / / localhost:9795
Referer: h t t p : / / localhost:9795/ApoioExames/Create
User-Agent:Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.31 (KHTML, like Gecko) Chrome/26.0.1410.64 Safari/537.31
X-Requested-With:XMLHttpRequest
Request Payload
{Razao:kkkkkkk, Endereco:kkkkkkkkk, Bairro:kkkkkk, Cidade:kkkk, Uf:kk, Cep:12341234,…}
Bairro: "kkkkkk"
Cep: "12341234"
Cidade: "kkkk"
Endereco: "kkkkkkkkk"
Exames: [{ExameId:1252, Valor:1, CodLab:1, Dias:1, LayoutId:1826},…]
0: {ExameId:1252, Valor:1, CodLab:1, Dias:1, LayoutId:1826}
1: {ExameId:1252, CodLab:1, Dias:1, Valor:1, LayoutId:1826, ApoioId:}
Razao: "kkkkkkk"
Uf: "kk"
Someone help me?
Sorry my bad english and the large post!
Thanks!

Answer 1

I have two things in mind.
ApoiosExm should be named Exames or vice-versa
I'm not sure if it can map to a ICollection<ApoioExmModel>. Either way, if you ask me, I would recommend not mapping directly to your entity classes.