之前操作步驟見《C#-創建Database First Demo》:https://blog.csdn.net/sinat_40003796/article/details/100541514
代碼:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Data.Entity.Infrastructure;//使用方法二,必須添加的命名空間
namespace ConsoleApp1
{
class Program
{
static void Main(string[] args)
{
using (testEntities db = new testEntities())
{
student st = new student
{
name = "mark",
age = 12
};
//方法一
//db.student.Add(st);
//方法二
DbEntityEntry<student> entry = db.Entry<student>(st);
entry.State = System.Data.Entity.EntityState.Added;
db.SaveChanges();
}
}
}
}