我是C＃和Visual Studio的新手。我试图将.csv文件读入我的ASP.NET MVC项目中，但找不到正确的教程。我尝试了多种不同的方法，并在下面列出的相同代码段上不断遇到相同的错误。
控制器
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Fifa19TeamBuilder.Models;
using System.IO;
using System.Web;
using System.Web.Mvc;
using Controller = Microsoft.AspNetCore.Mvc.Controller;
using ActionResult = Microsoft.AspNetCore.Mvc.ActionResult;
using Microsoft.AspNetCore.Hosting.Server;
namespace Fifa19TeamBuilder.Controllers
{
public class HomeController : Controller
{
public IActionResult Index()
{
return View();
}
public IActionResult About()
{
ViewData["Message"] = "Your application description page.";
return View();
}
public IActionResult Contact()
{
ViewData["Message"] = "Your contact page.";
return View();
}
public IActionResult Privacy()
{
return View();
}
[System.Web.Mvc.HttpPost]
public ActionResult Team(*HttpPostedFileBase* postedFile)
{
List<TeamModel> team = new List<TeamModel>();
string filePath = string.Empty;
if (postedFile != null)
{
string path = *Server*.MapPath("~/Uploads/");
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
filePath = path + Path.GetFileName(postedFile.*FileName*);
string extension = Path.GetExtension(postedFile.*FileName*);
postedFile.*SaveAs*(filePath);
//Read the contents of CSV file.
string csvData = System.IO.File.ReadAllText(filePath);
//Execute a loop over the rows.
foreach (string row in csvData.Split('\n'))
{
if (!string.IsNullOrEmpty(row))
{
team.Add(new TeamModel
{
ID = Convert.ToInt32(row.Split(',')[0]),
player_name = row.Split(',')[1],
quality = row.Split(',')[2],
overall = row.Split(',')[2],
club = row.Split(',')[2],
league = row.Split(',')[2],
nationality = row.Split(',')[2],
position = row.Split(',')[2],
age = row.Split(',')[2],
});
}
}
}
return View(team);
}
[ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
public IActionResult Error()
{
return View(new ErrorViewModel { RequestId = Activity.Current?.Id ?? HttpContext.TraceIdentifier });
}
}
}
型号
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
namespace Fifa19TeamBuilder.Models
{
public class TeamModel
{
public int ID { set; get; }
public string player_name { set; get; }
public string quality { set; get; }
public string overall { set; get; }
public string club { set; get; }
public string league { set; get; }
public string nationality { set; get; }
public string position { set; get; }
public string age { set; get; }
}
}
错误
CS0246找不到类型或名称空间名称'HttpPostedFileBase'（您是否缺少using指令或程序集引用？）
错误2：
CS0103当前上下文中不存在名称“服务器”
错误3：
CS1061'HttpPostedFileBaseModelBinder'不包含'SaveAs'的定义，并且找不到可访问的扩展方法，该方法接受类型为'HttpPostedFileBaseModelBinder'的第一个参数（您是否缺少using指令或引用）
有人可以帮我找到我所有针对VS 2010、2015的教程吗，不确定2017是否对您有所帮助。我只是想从项目文件夹中读取一个csv文件，并将其放在List<>中。我不需要上传文件。我有*表示错误。
这是我获得代码的地方