Question

我正在努力寻找一种安全的方法将相同的属性从派生类克隆到基类，我已经有了一个方法，将基类属性克隆到派生类

protected internal void InitInhertedProperties(object baseClassInstance)
    {
        foreach (PropertyInfo propertyInfo in baseClassInstance.GetType().GetProperties())
        {
            object value = propertyInfo.GetValue(baseClassInstance, null);
            if (null != value) propertyInfo.SetValue(this, value, null);
        }
    }

但是反向克隆呢？使用方法或库将派生类的相同属性克隆到基类的属性。

基类

public class UserEntity
{
    [PrimaryKey, AutoIncrement]
    public int id { get; set; }
    public int employee_id { get; set; }
    public string first_name { get; set; }
    public string last_name { get; set; }
    public string email { get; set; }
    public string login_id { get; set; }
    public string login_password { get; set; }
    public int role { get; set; }
    public bool is_delete { get; set; }
}

派生类

public class UserModel : UserEntity
{

    protected internal void InitInhertedProperties(object baseClassInstance)
    {
        foreach (PropertyInfo propertyInfo in baseClassInstance.GetType().GetProperties())
        {
            object value = propertyInfo.GetValue(baseClassInstance, null);
            if (null != value) propertyInfo.SetValue(this, value, null);
        }
    }
}

而不是按照以下方式进行：

var user_entity = new UserEntity();
        user_entity.id = user_model.id;
        user_entity.employee_id = user_model.employee_id;
        user_entity.first_name = user_model.first_name;
        user_entity.email = user_model.email;
        user_entity.login_id = user_model.login_id;
        user_entity.login_password = user_model.login_password;
        user_entity.role = user_model.role;
        user_entity.is_delete = false;

谢谢！

Answer 1

#include <stdio.h>

int main() {
    /* initilize variables (area, width and height) */
    float area, width, height;
    /* assign variables */
    area = 0.0;
    width = 0.0;
    height = 0.0;
    /* Gather user input */
    printf("Enter the area in square metres\n");
    scanf("%f", &area);
    printf("Enter the width in square metres\n");
    scanf("%f", &width);
    /* Height of a rectangle = area/width */
    height = area / width;
    /* Print result */
    printf("The height of the rectangle is: %f", height);

    return 0;
}

C＃将Derived类中的相同属性克隆到基类

1 个答案: