C# 反射獲取屬性類型及屬性值，兩個實體轉換

一、兩個實體數據轉換

 

/// <summary>
        /// 為屬性賦值
        /// </summary>
        /// <typeparam name="T">源單類</typeparam>
        /// <typeparam name="S">需要轉換的實體類</typeparam>
        /// <param name="source"></param>
        /// <returns></returns>
        public static S EntityConvert<T, S>(T source)
        {
            S target = Activator.CreateInstance<S>();
            var sType = source.GetType();
            var dType = typeof(S);
            foreach (PropertyInfo now in sType.GetProperties())
            {
                var name = dType.GetProperty(now.Name);
                if (name == null)
                    continue;
                dType.GetProperty(now.Name).SetValue(target, now.GetValue(source));
            }
            return target;
        }

/// <summary>
        /// 為屬性賦值
        /// </summary>
        /// <typeparam name="T">源單類</typeparam>
        /// <typeparam name="S">需要轉換的實體類</typeparam>
        /// <param name="source"></param>
        /// <returns></returns>
        public static S EntityConvert<T, S>(T source)
        {
            S target = Activator.CreateInstance<S>();
            var sType = source.GetType();
            var dType = typeof(S);
            foreach (PropertyInfo now in sType.GetProperties())
            {
                var name = dType.GetProperty(now.Name);
                if (name == null)
                    continue;
                dType.GetProperty(now.Name).SetValue(target, now.GetValue(source));
            }
            return target;
        }

 二、兩個集合之間的轉換

public static List<S> EntityConvert<T, S>(List<T> sourceList)
        {
            List<S> list = new List<S>();
            IEnumerator<T> enumerator = sourceList.GetEnumerator();
            while (enumerator.MoveNext())
            {
                list.Add(EntityConvert<T, S>(enumerator.Current));
            }
            return list;
        }

三、獲取屬性的名稱、屬性類型、屬性值

 

public class User
    {
        public int Id { get; set; }
        public string name { get; set; }
        public decimal money { get; set; }
        public string sex { get; set; }
        public string Email { get; set; }
        public DateTime birth { get; set; }
        public int State { get; set; }
    }
public void Test(){
    var user = new User
            {
                birth = DateTime.Now,
                Email = "[e-mail]",
                Id = 1,
                money = 123,
                name = "張三",
                sex = "男",
                State = 1
            };
            var type = user.GetType().GetProperties();
            foreach (var item in type)
            {
                Console.WriteLine($"屬性名稱：{item.Name}，屬性值：{ item.GetValue(user)}，屬性類型：{item.PropertyType.Name}");
            }
}

public class User
    {
        public int Id { get; set; }
        public string name { get; set; }
        public decimal money { get; set; }
        public string sex { get; set; }
        public string Email { get; set; }
        public DateTime birth { get; set; }
        public int State { get; set; }
    }
public void Test(){
    var user = new User
            {
                birth = DateTime.Now,
                Email = "[e-mail]",
                Id = 1,
                money = 123,
                name = "張三",
                sex = "男",
                State = 1
            };
            var type = user.GetType().GetProperties();
            foreach (var item in type)
            {
                Console.WriteLine($"屬性名稱：{item.Name}，屬性值：{ item.GetValue(user)}，屬性類型：{item.PropertyType.Name}");
            }
}