.NET中制做对象的副本（二）继承对象之间的数据拷贝

/// <summary>
/// 学生信息
/// </summary>
public class Student
{
/// <summary>
/// 学生姓名
/// </summary>
public string StudentName { get; set; }
}

/// <summary>
/// 老师信息
/// </summary>
public class Teacher
{
/// <summary>
/// 老师姓名
/// </summary>
public string TeacherName { get; set; }
/// <summary>
/// 学生列表
/// </summary>
public List<Student> lists { get; set; }
}

public class Professor : Teacher
{

}

Teacher t1 = new Teacher()
{
TeacherName = "老师1",
lists = new List<Student> { new Student { StudentName = "学生1" }, new Student { StudentName = "学生2" } }
};

Professor p1 = new Professor()
{

lists = new List<Student> { },
};
CloneEntity(t1, p1);

//更新普通属性
private static void CloneProperty(PropertyInfo propertyInfo, object intrinsicObj, object newObj)
{
var data = propertyInfo.GetValue(newObj, null);
if (data is IEnumerable<object>)
CloneNavigationPropertyEntityCollection(propertyInfo, intrinsicObj, newObj);
else
propertyInfo.SetValue(intrinsicObj, data, null);
}

private static void CloneNavigationPropertyEntityCollection(PropertyInfo propertyInfo, object intrinsicObj, object newObj)
{

//获取上下文中匹配的原对象集合
var intrinsicData = propertyInfo.GetValue(intrinsicObj, null);
//获取参数newObj中的对象集合
IEnumerable<object> newData = propertyInfo.GetValue(newObj, null) as IEnumerable<object>;
var addMethod = intrinsicData.GetType().GetMethod("Add");
foreach (object obj in newData)
{

Object objClone = GetIntrinsicObj(obj);
objClone = CloneEntity(obj, objClone);
addMethod.Invoke(intrinsicData, new object[] { objClone });
}
}

//获取上下文中待更新的原对象
private static Object GetIntrinsicObj(Object entity)
{
Object intrinsicObj;
intrinsicObj = Activator.CreateInstance(entity.GetType());

return intrinsicObj;
}

//更新上下文中的原对象，返回值为更新后的原对象
public static Object CloneEntity(Object obj, Object intrinsicObj)
{
foreach (PropertyInfo propertyInfo in obj.GetType().GetProperties())
{
CloneProperty(propertyInfo, intrinsicObj, obj);
}
return intrinsicObj;
}