-1
我想創建一個沒有實體框架的MVC項目,並且出現此錯誤。沒有爲此對象定義的無參數構造函數。我在C#中很新,我想要一些幫助。這裏是我的代碼: 首先,模型Movies.cs沒有爲此對象定義的無參數構造函數 - MVC項目
using System;
using System.Collections.Generic;
using System.Data.SqlClient;
using System.Linq;
using System.Web;
namespace MyMovies.Models
{
public class Movie
{
public int ID { get; set; }
public string Title { get; set; }
public DateTime ReleaseDate { get; set; }
public string Genre { get; set; }
public decimal Price { get; set; }
public string Rating { get; set; }
}
public interface IMovieRepository
{
IEnumerable<Movie> Get();
}
public class MovieDBRepository : IMovieRepository
{
public IEnumerable<Movie> Get()
{
string connectionString = "Connection";
using (var conn = new SqlConnection(connectionString))
using (var cmd = conn.CreateCommand())
{
conn.Open();
cmd.CommandText = "SELECT ID, Title, Date, Genre, Rating";
using (var reader = cmd.ExecuteReader())
{
while (reader.Read())
{
yield return new Movie
{
ID = reader.GetInt32(reader.GetOrdinal("ID")),
Title = reader.GetString(reader.GetOrdinal("name")),
ReleaseDate = reader.GetDateTime(reader.GetOrdinal("ReleaseDate")),
Genre = reader.GetString(reader.GetOrdinal("Genre")),
//Price = reader.GetFloat(reader.GetOrdinal.("Price")),
Rating = reader.GetString(reader.GetOrdinal("Rating"))
};
}
}
}
}
}
}
,這是控制器
using MyMovies.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
namespace MyMovies.Controllers
{
public class MovieController : Controller
{
private readonly IMovieRepository repository;
public MovieController(IMovieRepository repository)
{
this.repository = repository;
}
// GET: Movie
public ActionResult Index()
{
var movie = this.repository.Get();
return View(movie);
}
}
}
Movie類的定義是什麼? – 2015-02-09 15:18:54
使用像Ninject這樣的DI容器來配置它(或者你可以編寫你自己的'IDependencyResolver')。 – Styxxy 2015-02-09 15:20:37
我該怎麼做?我很抱歉,但我沒有編程經驗。 – Celia 2015-02-09 15:23:36