为什么我在尝试获取 WarehouseBatch 时收到“Microsoft.Data.SqlClient.SqlException：'无效列名'WarehouseBatchContentId'”？

Question

我一直收到此错误消息，即使我尝试

GetById()

（我的通用存储库中的一种方法）的表中没有

WarehouseBatchContentId

。我正在尝试获取

WarehouseBatchId

表中的

WarehouseBatch

而不是

WarehouseBatchContent

表中确实有一个

WarehouseBatchContentId

。

我看不出这种混淆发生在哪里！

产品配料器应用：

public class ProductBatcher : IBatchProducts
{
    private readonly IUnitOfWork _uow;
    private readonly IGenericRepository<WarehouseBatchContent> _warehouseBatchContentRepo;
    private readonly IGenericRepository<WarehouseBatch> _warehouseBatchRepo;

    public ProductBatcher(IGenericRepository<WarehouseBatchContent> warehouseBatchContentRepo, IUnitOfWork uow, IGenericRepository<WarehouseBatch> warehouseBatch)
    {
        _warehouseBatchContentRepo = warehouseBatchContentRepo;
        _uow = uow;
        _warehouseBatchRepo = warehouseBatch;
    }

    /*creating a method which takes all the parameters and is called in the program.cs file*/
    public void BatchMover(int Id)
    {
        Console.WriteLine(dto);
        
        var oldBatch = _warehouseBatchRepo.GetById(Id);

        if (oldBatch == null)
        {
            throw new Exception("No batch matching the input");
        }
    }
}

WarehouseBatchContent

域：

namespace Domain;

public class WarehouseBatchContent
{
    protected WarehouseBatchContent()
    {
        WarehouseBatches = new List<WarehouseBatch>();
    }

    public WarehouseBatchContent(int warehouseBatchId, int manufactoringLotId, int quantity)
    {
        WarehouseBatchId = warehouseBatchId;
        ManufactoringLotId= manufactoringLotId;
        Quantity= quantity;
    }

    public int WarehouseBatchContentId { get; private set; }
    public int WarehouseBatchId { get; private set; }
    public int ManufactoringLotId { get; private set; }
    public int Quantity { get; private set; }

    public virtual ManufactoringLot? ManufactoringLotNavigation { get; set; }
    public virtual WarehouseBatch? WarehouseBatchNavigation { get; set; }

    public virtual ICollection<WarehouseBatch> WarehouseBatches { get; protected set; }
}

WarehouseBatch

域：

namespace Domain;

public class WarehouseBatch
{
    public WarehouseBatch(int locationId)
    {
        LocationId = locationId;
    }

    public int WarehouseBatchId { get; private set; }
    public int LocationId { get; private set; }

    public virtual Location? LocationNavigation { get; set; }

    public virtual ICollection<WarehouseBatchContent> WarehouseBatchContents { get; set; } = new List<WarehouseBatchContent>();
    }
}

有什么建议吗？

我期待

GetById()

使用

WarehouseBatchId

作为ID参数，而不是

WarehouseBatchContentId

。

Answer 1

[Key]
public int WarehouseBatchId { get; private set; }

尝试像这样从 dataAnnotations 库中设置键 使用 System.ComponentModel.DataAnnotations