C# 通過反射機制獲取屬性和屬性值,以及給對象屬性賦值

1、通過反射機制獲取對象屬性和屬性值,以及給對象屬性賦值。

2、反射工具代碼

 /// <summary>
    /// 反射工具
    /// </summary>
    public static class ReflexHelper
    {
        #region 對象相關 
        /// <summary>
        /// 取對象屬性值
        /// </summary>
        /// <param name="FieldName"></param>
        /// <param name="obj"></param>
        /// <returns></returns>
        public static string GetModelValue(string FieldName, object obj)
        {
            try
            {
                Type Ts = obj.GetType();
                object o = Ts.GetProperty(FieldName).GetValue(obj, null);
                if (null == o)
                    return null;
                string Value = Convert.ToString(o);
                if (string.IsNullOrEmpty(Value))
                    return null;
                return Value;
            }
            catch (Exception ex)
            {
                throw ex;
            }
            return null;
        }

        /// <summary>
        /// 設置對象屬性值
        /// </summary>
        /// <param name="FieldName"></param>
        /// <param name="Value"></param>
        /// <param name="obj"></param>
        /// <returns></returns>
        public static bool SetModelValue(string FieldName, string Value, object obj)
        {
            try
            {
                Type Ts = obj.GetType();
                object v = Convert.ChangeType(Value, Ts.GetProperty(FieldName).PropertyType);
                Ts.GetProperty(FieldName).SetValue(obj, v, null);
                return true;
            }
            catch (Exception ex)
            {
               throw ex;
            }
            return false;
        }
        #endregion

       
    }

3、簡單對象

   public class User
    {
        public int Id { get; set; }

        public string UserName { get; set; }
    }

4、測試:

    static void Main(string[] args)
        {
            User user = new User
            {
                Id = 100,
                UserName = "Ace"
            };
            //獲取屬性值
            var id = ReflexHelper.GetModelValue("Id",user);

            //設置屬性值
            User setUser = new User();
            ReflexHelper.SetModelValue("UserName", "Test", setUser);

            Console.ReadLine();
        }

 

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