static void Main(string[] args)
{
using (FirstDbContext db = new FirstDbContext())
{
//var u1 = db.User.AsNoTracking().FirstOrDefault();
//u1.Name = "小李";
//using (var db2 = new FirstDbContext())
//{
// var u2 = db2.User.AsNoTracking().FirstOrDefault();
// u2.Name = "小四";
// db2.Entry(u2).State = System.Data.Entity.EntityState.Modified;
// var reuslt = db2.SaveChanges();
//}
//db.Entry(u1).State = System.Data.Entity.EntityState.Modified;
//var aa = db.SaveChanges();
#region 准备数据
//db.User.Add(new User() { Id = Guid.NewGuid().ToString(), Name = "小明", Age = "23" });
//db.User.Add(new User() { Id = Guid.NewGuid().ToString(), Name = "小李", Age = "27" });
//db.SaveChanges();
//db.UserRole.Add(new UserRole() { Name = "小明角色", Users = db.User.ToList() });
////db.UserRole.Add(new UserRole() { Name = "小李" });
//db.SaveChanges();
var userrole = db.UserRole.FirstOrDefault();
db.UserRole.Remove(userrole);
//var user = db.User.FirstOrDefault();
//db.User.Remove(user);
db.SaveChanges();
#endregion
}
}
public ManageProductService(FirstDbContext context)
{
_context = context;
}
public CategoryRepository(DbContext dbContext)
: base(dbContext)
{
_dbContext = (_dbContext ?? (FirstDbContext)dbContext);
}