我最近發現了一個我之前沒有遇到的有關依賴關係的問題,並且查找它並找到Ninject。我遵循了一個關於如何使用它的指南,並且已經達到了我收到的以及我不明白的錯誤。我非常普遍寫下了錯誤的標題,但完整的錯誤如下:存儲庫不能用作通用類型方法中的類型參數
「錯誤1型‘MyDBFirstAP.Repository.SQLAPRepository在泛型類型’不能 用作類型參數‘TImplementation’或方法 'Ninject.Syntax.IBindingToSyntax.To()'。有 沒有從 'MyDBFirstAP.Repository.SQLAPRepository'到 'MyDBFirstAP.Repository.IAPRepository'的隱式引用轉換。
它發生在這裏:
public class NinjectControllerFactory : DefaultControllerFactory{
private IKernel ninjectKernel;
public NinjectControllerFactory() {
ninjectKernel = new StandardKernel();
AddBindings();
}
protected override IController GetControllerInstance(RequestContext requestContext, Type controllerType) {
return controllerType == null
? null
: (IController)ninjectKernel.Get(controllerType);
}
private void AddBindings()
{
ninjectKernel.Bind<IAPRepository>().To<SQLAPRepository>(); // On this line
}
}
我的控制器的起點是:
public class ClientsController : Controller
{
IAPRepository repository;
// GET: Clients
public ClientsController(IAPRepository repository) {
this.repository = repository;
}
這裏是要求SQLRepository代碼:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using MyDBFirstAP.Models;
using MyDBFirstAP.DI;
namespace MyDBFirstAP.Repository {
public class SQLAPRepository {
ApplicationDbContext Database = new ApplicationDbContext();
#region Client
public IQueryable<Client> GetAllClients() {
return Database.Clients;
}
public Client GetClientByID(int id) {
return Database.Clients.FirstOrDefault(c => c.ClientID == id);
}
public IQueryable<Client> GetClientByName(string ClientName) {
return (from clients in Database.Clients
where clients.ClientName.Contains(ClientName)
select clients);
}
public void AddClient(Client client) {
Database.Clients.Add(client);
Database.SaveChanges();
}
public void UpdateClient(Client client) {
var tmpClient = Database.Clients.FirstOrDefault(c => c.ClientID == client.ClientID);
tmpClient.ClientName = client.ClientName;
tmpClient.ClientAddress = client.ClientAddress;
Database.SaveChanges();
}
public void DeleteClient(Client client) {
Database.Clients.Remove(client);
Database.SaveChanges();
}
#endregion
#region Supplier
public IQueryable<Supplier> GetAllSuppliers() {
return Database.Suppliers;
}
public Supplier GetSupplierByID(int id) {
return Database.Suppliers.FirstOrDefault(s => s.SupplierID == id);
}
public IQueryable<Supplier> GetSupplierByName(string SupplierName) {
return(from suppliers in Database.Suppliers
where suppliers.SupplierName.Contains(SupplierName)
select suppliers);
}
public void AddSupplier(Supplier supplier) {
Database.Suppliers.Add(supplier);
Database.SaveChanges();
}
public void UpdateSupplier(Supplier supplier) {
var tmpSupplier = Database.Suppliers.FirstOrDefault(s => s.SupplierID == supplier.SupplierID);
tmpSupplier.SupplierName = supplier.SupplierName;
tmpSupplier.SupplierAddress = supplier.SupplierAddress;
Database.SaveChanges();
}
public void DelteSupplier(Supplier supplier) {
Database.Suppliers.Remove(supplier);
Database.SaveChanges();
}
#endregion
#region Claim
public IQueryable<Claim> GetAllClaims() {
return Database.Claims;
}
public Claim GetClaimByID (int id) {
return Database.Claims.FirstOrDefault(c => c.ClaimID == id);
}
public void AddClaim(Claim claim) {
Database.Claims.Add(claim);
Database.SaveChanges();
}
public void UpdateClaim(Claim claim) {
var tmpClaim = Database.Claims.FirstOrDefault(c => c.ClaimID == claim.ClaimID);
tmpClaim.ClaimTotal = claim.ClaimTotal;
tmpClaim.ClaimWIP = claim.ClaimWIP;
tmpClaim.FK_ClientID = claim.FK_ClientID;
tmpClaim.FK_SupplierID = claim.FK_SupplierID;
Database.SaveChanges();
}
public void DeleteClaim(Claim claim) {
Database.Claims.Remove(claim);
Database.SaveChanges();
}
#endregion
}
}
能有人幫我明白這個錯誤,並幫助我解決它的問題即謝謝。
您可以發佈SQLAPRepository代碼嗎? –
當然,我已經發布了它。 –