c# 字典參數或者Request參數轉為實體

看到.net webapi中有[FromUri]來接收參數  可以將自動參數轉換成字段屬性的類型

baidu 了許多文章 都在自己造輪子  突然發下微軟提供了這個方法   Convert.ChangeType()

        public static readonly BackArgs _args = new BackArgs();
        protected override void OnInit(EventArgs e)
        {
            foreach (System.Reflection.PropertyInfo item in typeof(BackArgs).GetProperties())
            {
                if (Request.Params[item.Name] != null)
                {
                    item.SetValue(_args, Convert.ChangeType(Request.Params[item.Name], Type.GetType(item.PropertyType.FullName)));
                }
            }
        }

 新版本

    public static class ObjectMapper
    {
        public static TDestination Map<TDestination>(this TDestination objects, object source)
            where TDestination : class, new()
        {
            switch (source)
            {
                case HttpRequest request:
                    objects = JsonConvert.DeserializeObject<TDestination>(JsonConvert.SerializeObject(request.Params.AllKeys.ToDictionary(x => x, x => request.Params[x])));
                    break;
                case IDictionary<string, string> keyValuePairs:
                    objects = JsonConvert.DeserializeObject<TDestination>(JsonConvert.SerializeObject(keyValuePairs));
                    break;
                default:
                    break;
            }
            return objects;
        }
    }