C# 在实体框架核心中包含子属性

我在.NET核心和实体框架核心工作

我有以下的模型课

public class FD
{
  public virtual Branch Branch { get; set; }
  public int Id { get; set; }
  public int BranchId { get; set; }
}

public class Branch
{
    public Branch()
    {
        FD= new HashSet<FD>();
    }
    
    public virtual ICollection<FixedDeposit> FixedDeposits { get; set; }
    public virtual Bank Bank { get; set; }
}

public class Bank
{
    public Bank()
    {
       Branches = new HashSet<Branch>();
    }

    public int Id { get; set; }
    public string Name { get; set; }

    public virtual ICollection<Branch> Branches { get; set; }
}

回购中的GetAll实现如下

  public IEnumerable<T> GetAll(Expression<Func<T, bool>> filter = null, Func<IQueryable<T>, IOrderedQueryable<T>> orderBy = null, string includeProperties = null)
    {
        IQueryable<T> query = dbSet;

        if (filter != null)
        {
            query = query.Where(filter);
        }

        if (includeProperties != null)
        {
            foreach (var includeProp in includeProperties.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries))
            {
                query = query.Include(includeProp);
            }
        }

        if (orderBy != null)
        {
            return orderBy(query).ToList();
        }
        return query.ToList();
    }

public IEnumerable GetAll（表达式筛选器=null，Func orderBy=null，字符串includeProperties=null）
{
IQueryable query=dbSet；
if（过滤器！=null）
{
query=query.Where（过滤器）；
}
if（includeProperties！=null）
{
foreach（includeProperties.Split中的var includeProp（新字符[]{'，}，StringSplitOptions.RemoveEmptyEntries））
{
query=query.Include（includeProp）；
}
}
if（orderBy！=null）
{
returnorderby（query.ToList（）；
}
返回query.ToList（）；
}

问题似乎是您试图包含“Bank”，它有两层深度

以下方面应起作用：

public IActionResult Index()
{
    ICollection<FD> fixedDeposits = _unitOfWork.FD.GetAll(includeProperties: "Branch,Branch.Bank").ToList();
    return View(fixedDeposits);
}

---

用GetAll代码更新了我的问题。。我们不能为这个问题提供一些通用的解决方案吗？？？@Bombo答案更新。看看它是否有效，这对我的案子很有效。

  public IEnumerable<T> GetAll(Expression<Func<T, bool>> filter = null, Func<IQueryable<T>, IOrderedQueryable<T>> orderBy = null, string includeProperties = null)
    {
        IQueryable<T> query = dbSet;

        if (filter != null)
        {
            query = query.Where(filter);
        }

        if (includeProperties != null)
        {
            foreach (var includeProp in includeProperties.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries))
            {
                query = query.Include(includeProp);
            }
        }

        if (orderBy != null)
        {
            return orderBy(query).ToList();
        }
        return query.ToList();
    }

public IActionResult Index()
{
    ICollection<FD> fixedDeposits = _unitOfWork.FD.GetAll(includeProperties: "Branch,Branch.Bank").ToList();
    return View(fixedDeposits);
}

query.Include(fd => fd.Branch)
    .ThenInclude(b => b.Bank);