static void Main(string[] args)
{
Test t = new Test();
// 新增学校.
School school1 = new School()
{
SchoolName = "学校1"
};
School school2 = new School()
{
SchoolName = "学校2"
};
t.SaveSchoolData(school1);
t.SaveSchoolData(school2);
// 新增老师.
Teacher t1 = new Teacher()
{
TeacherName = "张老师",
InSchool = school1
};
Teacher t2 = new Teacher()
{
TeacherName = "李老师",
InSchool = school1
};
Teacher t3 = new Teacher()
{
TeacherName = "王老师",
InSchool = school2
};
Teacher t4 = new Teacher()
{
TeacherName = "赵老师",
InSchool = school2
};
t.SaveTeacherData(t1);
t.SaveTeacherData(t2);
t.SaveTeacherData(t3);
t.SaveTeacherData(t4);
// 查询 学校中的老师.
foreach (School sc in t.SchoolDataSource)
{
foreach (Teacher te in sc.SchoolTeachers)
{
Console.WriteLine("{0}:{1}", sc.SchoolName, te.TeacherName);
}
}
Console.ReadLine();
}
/// <summary>
/// 保存.
/// </summary>
/// <param name="data"></param>
public void SaveSchoolData(School data)
{
if (data.SchoolID == 0)
{
context.SchoolDbSet.Add(data);
}
else
{
context.Entry(data).State = EntityState.Modified;
}
context.SaveChanges();
}