如何将派生 Class 添加到存储库

Question

我需要一个建议。我有两个 class，其中一个是派生的 class。 我想在一个方法中插入我的基础和派生 class。我怎样才能做到这一点？

//my entities
public class Form
{
    public int FormId { get; set; }
    public string Name { get; set; }
    public string Surname { get; set; }
    public string Message { get; set; }
}

public class ReturnForm : Form
{
    public int OrderId { get; set; }
}

//my repository
public class FormRepository : IFormRepository:IDisposable
{
    private readonly MyContext _db;

    public FormRepository(MyContext db)
    {
        _db = db;
    }
    
    //I want to insert here Form or ReturnForm objects.
    //What can i do?
    public void AddFormMessage(Form form)
    {
        _db.Forms.Add(form);
    }
}

Answer 1

我已经解决了业务层的问题

public void AddFormMessage<T>(FormDto formDto)
{
    Form form;
    var targetClassType = typeof(T);

    if (targetClassType == typeof(Form))
    {
        form = _mapper.Map<Form>(formDto);
    }
    else if (targetClassType == typeof(ReturnForm))
    {
        form = _mapper.Map<ReturnForm>(formDto);
    }
    else
    {
        throw new Exception("Unknown form type");
    }
    
    _unitOfWork.FormRepository.AddFormMessage(form);
}

如何将派生 Class 添加到存储库

How Can I Add A Derived Class To Repository

sql-server

asp.net-mvc

design-patterns

entity-framework

repository