mycorerepository/MyCore/DTO/RequestParam.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace MyCore.DTO
{
    public class RequestParam
    {
        private const int maxPageCount = 50;
        public int? Page { get; set; }
        private int? _pageCount = maxPageCount;
        public int? PageCount
        {
            get { return _pageCount; }
            set { _pageCount = (value > maxPageCount) ? maxPageCount : value; }
        }
        public string SiteId { get; set; }
        public string OrderBy { get; set; } = "Name";
    }
}