public void Run()
{
new DStudent().Add(new Student()
{
Name = "这不是一个事务"
});
using (var context = new LZHData())
{
using (var dbContextTransaction = context.Database.BeginTransaction())
{
DPerson dPerson = new DPerson(context);
DStudent dStudent = new DStudent(context);
dPerson.Add(new Person()
{
Age = 1, FirstName = "f", LastName = "f"
});
dStudent.Add(new Student()
{
Name = "f"
});
dbContextTransaction.Commit();
}
}
}
public Student GetModelByID(long ID)
{
Student model = null;
using (var context = new LZHData())
{
model = context.Student.Find(ID);
}
return(model);
}
/// <summary>
/// 分页获取
/// </summary>
/// <param name="pageSize">页码</param>
/// <param name="pageIndex">当前页</param>
/// <param name="countNum">总数</param>
/// <returns></returns>
public IList <Student> GetList(int pageSize, int pageIndex, ref long countNum)
{
IList <Student> list = new List <Student>();
using (var context = new LZHData())
{
var query = context.Student.OrderBy(x => x.ID).Skip(pageSize * (pageIndex - 1)).Take(pageSize);
query = query.Where(x => x.ID > 10);
list = query.ToList();
countNum = context.Student.Count();
}
return(list);
}
public bool Add(Person person)
{
var flag = false;
if (_Context == null)
{
using (var context = new LZHData())
{
context.Person.Add(person);
flag = context.SaveChanges() > 0;
}
}
else
{
_Context.Person.Add(person);
flag = _Context.SaveChanges() > 0;
}
return(flag);
}
public bool Add(Student student)
{
var flag = false;
if (_Context == null)
{
using (var context = new LZHData())
{
context.Student.Add(student);
flag = context.SaveChanges() > 0;
}
}
else
{
_Context.Student.Add(student);
flag = _Context.SaveChanges() > 0;
}
return(flag);
}
public DPerson(LZHData context)
{
_Context = context;
}
public DStudent(LZHData context)
{
_Context = context;
}
