我遇到了一个问题,当我尝试访问我的PartsDbContext中的字段时,我会收到以下错误:
System.Data.SqlClient.SqlException:“Invalid object name 'fieldName'”
似乎这是因为我尝试让我的PartsDbContext使用与我的ApplicationDbContext相同的数据库,而该数据库用于Identity。我需要知道如何设置第二个dbcontext以与使用/创建不同数据库的EF核心一起工作。
我尝试创建第二个连接字符串,但我得到以下错误:
System.Data.SqlClient.SqlException:“无法打开请求的数据库“PartsDb”。登录失败。登录失败的用户为'DESKTOP-4VPU567\higle'。”
以下是我的代码:
appsettings.json
"ConnectionStrings": {
"DefaultConnection": "Server=(localdb)\\mssqllocaldb;Database=aspnet-PrecisionCustomPC-b14db89e-86ad-4855-a17f-ac64a04339aa;Trusted_Connection=True;MultipleActiveResultSets=true",
"PartsConnection": "Server=(localdb)\\mssqllocaldb;Database=PartsDb"
},
"Logging": {
"IncludeScopes": false,
"LogLevel": {
"Default": "Warning"
}
}
PartsDbContext.cs
public class PartsDbContext : DbContext
{
public DbSet<PartsViewModels.Tower> Towers { get; set; }
public DbSet<PartsViewModels.Motherboard> Motherboards { get; set; }
public PartsDbContext(DbContextOptions<PartsDbContext> options)
: base(options)
{
}
}
Startup.cs
public void ConfigureServices(IServiceCollection services)
{
// Add framework services.
services.AddDbContext<ApplicationDbContext>(options =>
options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")));
services.AddIdentity<ApplicationUser, IdentityRole>()
.AddEntityFrameworkStores<ApplicationDbContext>()
.AddDefaultTokenProviders();
services.AddEntityFramework()
.AddDbContext<PartsDbContext>(options =>
options.UseSqlServer(Configuration.GetConnectionString("PartsConnection")));
services.AddMvc();
services.AddAuthorization(options =>
{
options.AddPolicy("RequireAdminRole", policy => policy.RequireRole("Admin"));
});
// Add application services.
services.AddTransient<IEmailSender, AuthMessageSender>();
services.AddTransient<ISmsSender, AuthMessageSender>();
}
AdminController.cs
[Authorize(Policy = "RequireAdminRole")]
public class AdminController : Controller
{
private readonly PartsDbContext _context;
public AdminController(PartsDbContext context)
{
_context = context;
}
public IActionResult Index()
{
return View();
}
public IActionResult Towers()
{
var model = _context.Towers.ToList();
return View(model);
}
}
错误出现在这行代码:var model = _context.Towers.ToList();
。
再次说明,我想要设置我的PartsDbContext以便与Entity Framework Core一起工作,以便EF-Core可以自动创建数据库。
"PartsConnection": "Server=(localdb)\\mssqllocaldb;Database=PartsDb"
替换为"PartsConnection": "Server=(localdb)\\mssqllocaldb;Database=PartsDb;Trusted_Connection=True"
? - Maria Ines Parnisari