我不知道这个错误发生了什么:
传入字典的模型项目的类型为“System.Collections.Generic.List1 [RepositoryExample.Employee]”,但是该字典需要一个类型为“RepositoryExample.Models.IEmployeeManagerRepository”的模型项.
当我转到索引视图时,我收到错误.我从控制器添加了索引视图,但没有代码.我使用Linq到sql.
@model RepositoryExample.Models.IEmployeeManagerRepository @{ ViewBag.Title = "Index"; } <h2>Index</h2>
这是我的代码:
EmployeeController.cs
// GET: /Employee/ public ActionResult Index() { return View(_repository.ListEmployees()); }
LinqEmployeeManagerRepository.cs
public class LinqEmployeeManagerRepository: RepositoryExample.Models.IEmployeeManagerRepository { private DeptDirectoryDataClassesDataContext _db = new DeptDirectoryDataClassesDataContext(); public Employee GetEmployee(string UserName) { return (from e in _db.Employees where e.UserName == UserName select e).FirstOrDefault(); } public IEnumerable<Employee> ListEmployees() { return _db.Employees.ToList(); } public Employee CreateEmployee(Employee employeeToCreate) { _db.Employees.InsertOnSubmit(employeeToCreate); _db.SubmitChanges(); return employeeToCreate; } public Employee EditEmployee(Employee employeeToEdit) { var OriginalEmployee = GetEmployee(employeeToEdit.UserName); _db.Employees.Attach(employeeToEdit,OriginalEmployee); _db.SubmitChanges(); return employeeToEdit; } public void DeleteEmployee(Employee employeeToDelete) { var OriginalEmployee = GetEmployee(employeeToDelete.UserName); _db.Employees.DeleteOnSubmit(OriginalEmployee); _db.SubmitChanges(); } }
IEmployeeManagerRepository.cs
namespace RepositoryExample.Models { public interface IEmployeeManagerRepository { Employee CreateEmployee(Employee employeeToCreate); void DeleteEmployee(Employee employeeToDelete); Employee EditEmployee(Employee employeeToUpdate); Employee GetEmployee(string UserName); IEnumerable<Employee> ListEmployees(); }
}
任何想法我做错了什么?我试图按照本教程中的Repository模式的例子(http://www.asp.net/mvc/tutorials/iteration-4-make-the-application-loosely-coupled-cs)
解决方法
在您的Index.cshtml视图的顶部替换:
@model RepositoryExample.Models.IEmployeeManagerRepository
有:
@model IEnumerable<RepositoryExample.Employee>
_repository.ListEmployees()方法返回IEnumerable< Employee>这就是你在这里的观点:
return View(_repository.ListEmployees());
这就是您在视图中的@model指令中应该使用的类型.