When I try to get data from the table Anexos
, I get this Exeption:
"An error occurred while executing the command definition. See the inner exception for details."
"Invalid column name 'Empresas_Id'."
Then I was looking for the Empresas_Id
field in my model. But..
public class Anexos
{
[Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public int Id { get; set; }
[Display(Name = "Descrição"), StringLength(150)]
public string Descricao { get; set; }
[StringLength(90)]
public string Nome { get; set; }
public string Caminho { get; set; }
[Column("PessoaId")]
public int? PessoaId { get; set; }
[Column("Contrato_Id")]
public int? ContratoId { get; set; }
[Column("TipoDocumento_Id")]
public int TipoDocumentoId { get; set; }
[ForeignKey("ContratoId")]
public virtual Contratos Contrato { get; set; }
[ForeignKey("PessoaId")]
public virtual Pessoas Pessoa { get; set; }
[ForeignKey("TipoDocumentoId")]
public virtual TipoDocumento TipoDocumento { get; set; }
}
There is no Empresas_Id
field, then I checked my database table, but nothing there too... The Contratos
model have the field, but I can take the data from it without errors. Is this a bug of EF ?
I checked this answers trying to find my issue:
EF Code First “Invalid column name 'Discriminator'” but no inheritance
EF Code first invalid column name “CategoryCategoryID”
PS: All of my migrations are up-to-date.
My table Script :
CREATE TABLE [dbo].[Anexos] (
[Id] INT IDENTITY (1, 1) NOT NULL,
[Descricao] NVARCHAR (150) NULL,
[Nome] NVARCHAR (90) NULL,
[Caminho] NVARCHAR (MAX) NULL,
[PessoaId] INT NULL,
[Contrato_Id] INT NULL,
[TipoDocumento_Id] INT NOT NULL,
CONSTRAINT [PK_dbo.Anexos] PRIMARY KEY CLUSTERED ([Id] ASC),
CONSTRAINT [FK_dbo.Anexos_dbo.Contratos_Contrato_Id] FOREIGN KEY ([Contrato_Id]) REFERENCES [dbo].[Contratos] ([Id]),
CONSTRAINT [FK_dbo.Anexos_dbo.Pessoas_PessoaId] FOREIGN KEY ([PessoaId]) REFERENCES [dbo].[Pessoas] ([Id]),
CONSTRAINT [FK_dbo.Anexos_dbo.TipoDocumento_TipoDocumento_Id] FOREIGN KEY ([TipoDocumento_Id]) REFERENCES [dbo].[TipoDocumento] ([Id])
);
GO
CREATE NONCLUSTERED INDEX [IX_PessoaId]
ON [dbo].[Anexos]([PessoaId] ASC);
GO
CREATE NONCLUSTERED INDEX [IX_Contrato_Id]
ON [dbo].[Anexos]([Contrato_Id] ASC);
GO
CREATE NONCLUSTERED INDEX [IX_TipoDocumento_Id]
ON [dbo].[Anexos]([TipoDocumento_Id] ASC);
My connection string :
<add name="DefaultConnection" connectionString="data source=PC-TREINA09\SQLEXPRESS;initial catalog=erp10_new;integrated security=True; MultipleActiveResultSets=True" providerName="System.Data.SqlClient" />
The Contratos
table:
public class Contratos
{
public Contratos()
{
Items = new HashSet<ContratoItens>();
Anexos = new HashSet<Anexos>();
Contas = new HashSet<ContasContasReceber>();
}
[Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public int Id { get; set; }
[Required]
public int Numero { get; set; }
public DateTime? DataContrato { get; set; }
public DateTime? DataVenda { get; set; }
public int? DiaDoMesCobranca { get; set; }
public int? MesesVigencia { get; set; }
public string Observacoes { get; set; }
public TipoDesconto? TipoDesconto { get; set; }
public double? ValorDesconto { get; set; }
public double? ValorTotal { get; set; }
public StatusContrato Status { get; set; }
[Column("EmpresaId")]
public int EmpresaId { get; set; }
[Column("Cliente_Id")]
public int ClienteId { get; set; }
[Column("ClienteFaturamento_Id")]
public int ClienteFaturamentoId { get; set; }
[Column("Pagamento_Id")]
public int? PagamentoId { get; set; }
[ForeignKey("EmpresaId")]
public virtual Empresas Empresa { get; set; }
[ForeignKey("ClienteId")]
public virtual PessoasCliente Cliente { get; set; }
[ForeignKey("ClienteFaturamentoId")]
public virtual PessoasCliente ClienteFaturamento { get; set; }
[ForeignKey("PagamentoId")]
public virtual Pagamentos Pagamento { get; set; }
public virtual ICollection<Anexos> Anexos { get; set; }
public virtual ICollection<ContratoItens> Items { get; set; }
public virtual ICollection<ContasContasReceber> Contas { get; set; }
}
So, I don't know why but, when a send to my GridView as a List<T>
model it gives me that error, but if I send using AsEnumarable
instead of ToList
, it works:
public ActionResult IndexContratos(int id)
{
var anexos = db.Anexos
.Include(a => a.Contrato)
.Include(a => a.Pessoa)
.Include(a => a.TipoDocumento)
.Where(x => x.ContratoId == id);
AnexosContratoTemps(id);
return View("Grid", anexos.AsEnumerable());//Works !!
//return View("Grid", anexos.ToList()); //Invalid column name...
}
My View model is:
@model IEnumerable<Anexos>
But a List<T>
is a IEnumarable<T>
, I really don't understand that why ToList
gives me that error, can someone explain?
Finally(by coincidence) I found what was that bug, I forgot to say that the Anexos
property in MyContext
class was virtual, something like this:
public DbSet<Anexos> Anexos { get; set; } //WRONG!
public virtual DbSet<Anexos> Anexos { get; set; }//YAYYY!!
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.