C#项目优化

1.读取的封装

public static List<T> ConvertData<T>(SqlDataReader sdr)
     {
         List<T> list = new List<T>();
         Type type = typeof(T);
         PropertyInfo[] properties = type.GetProperties();
         while (sdr.Read())
         {
             T model = Activator.CreateInstance<T>();
             for (int i = 0; i < properties.Length; i++)
             {
                 for (int j = 0; j < sdr.FieldCount; j++)
                 {
                     //判断属性的名称和字段的名称是否相同
                     if (properties[i].Name == sdr.GetName(j))
                     {
                         Object value =sdr[j];
                         //将字段的值赋值给User中的属性
                         properties[i].SetValue(model, value, null);
                     }
                 }
             }
             list.Add(model);
         }
         return list;
     }

//调用
List<User> list = new List<User>();
SqlDataReader sdr = cmd.ExecuteReader();
list = ConvertData<User>(sdr);

 

/// <summary>
        /// SqlDataReader读取封装对象
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="sdr"></param>
        /// <returns></returns>
        public static T ConvertObject<T>(SqlDataReader sdr)
        {
            Type type = typeof(T);
            PropertyInfo[] properties = type.GetProperties();
            T model = Activator.CreateInstance<T>();
            while (sdr.Read())
            {
                for (int i = 0; i < properties.Length; i++)
                {
                    for (int j = 0; j < sdr.FieldCount; j++)
                    {
                        //判断属性的名称和字段的名称是否相同
                        if (properties[i].Name == sdr.GetName(j))
                        {
                            Object value = sdr[j];
                            //将字段的值赋值给T中的属性
                            properties[i].SetValue(model, value, null);
                        }
                    }
                }
            }
            return model;
        }