Question

class person
{
[Required(ErrorMessage = "Please enter the FirstName of person")]
string FirstName{get; set ;}

[Required(ErrorMessage = "Please enter the LastName of person")]
string LastName{get; set ;}
}

class Student
{
string FirstName{get; set ;}
string LastName{get; set ;}
}

Person p = new Person();
Student s = new Student();

我想将属性从person复制到Student; 它怎么样？

Answer 1

您可以使用继承来简化这一过程。

class Student : Person
{

}

Answer 2

我认为通过“属性”，你实际上是指“财产”......

没有“自动”方式，您需要手动复制值。

Person p = ...
Student s = new Student { FirstName  = p.FirstName, LastName = p.LastName };

根据上下文，您还可以使用AutoMapper

之类的对象映射器

Answer 3

如果Student继承Person，则它们都具有属性及其属性。

class Person
{
    [Required(ErrorMessage = "Please enter the FirstName of person")]
    string FirstName { get; set; }

    [Required(ErrorMessage = "Please enter the LastName of person")]
    string LastName { get; set; }
}

class Student : Person
{
}

Answer 4

您可以使用这样的反射：

foreach (var getter in s.GetType().GetProperties())
{
    var newData = getter.GetValue(newProject, null);
    var setter = p.GetType().GetProperty(prop.Name)
    setter.SetValue(p, newData, null);
}

如何将一个属性从一个类复制到另一个类？

4 个答案: