JW/EMIS.ViewModel/QueryParamsModel.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Web;
using Bowin.Common.Linq.Entity;

namespace EMIS.ViewModel
{
    public class QueryParamsModel
    {
        public int? page { get; set; }
        public int? rows { get; set; }
        public string QueryParamsDatas { get; set; }

        /// <summary>
        /// 
        /// </summary>
        public string OrderBy
        {
            get
            {
                var orderby = (OrderByStatementView)HttpContext.Current.Session["Bowin_Common_Linq_Entity_CurOrderby"];
                if (orderby == null)
                {
                    return null;
                }
                else
                {
                    return orderby.OrderBy;
                }
            }
            set
            {
                if (value == null) 
                {
                    HttpContext.Current.Session["Bowin_Common_Linq_Entity_CurOrderby"] = null;
                    return;
                }
                var orderby = (OrderByStatementView)HttpContext.Current.Session["Bowin_Common_Linq_Entity_CurOrderby"];
                if (orderby == null)
                {
                    orderby = new OrderByStatementView() { OrderBy = value };
                }
                else
                {
                    orderby.OrderBy = value;
                }
                HttpContext.Current.Session["Bowin_Common_Linq_Entity_CurOrderby"] = orderby;
            }
        }

        /// <summary>
        /// 
        /// </summary>
        public bool? IsAsc
        {
            get
            {
                var orderby = (OrderByStatementView)HttpContext.Current.Session["Bowin_Common_Linq_Entity_CurOrderby"];
                if (orderby == null)
                {
                    return null;
                }
                else
                {
                    return orderby.isAsc;
                }
            }
            set
            {
                if (value == null)
                {
                    HttpContext.Current.Session["Bowin_Common_Linq_Entity_CurOrderby"] = null;
                    return;
                }
                var orderby = (OrderByStatementView)HttpContext.Current.Session["Bowin_Common_Linq_Entity_CurOrderby"];
                if (orderby == null)
                {
                    orderby = new OrderByStatementView() { isAsc = value.Value };
                }
                else
                {
                    orderby.isAsc = value.Value;
                }
                HttpContext.Current.Session["Bowin_Common_Linq_Entity_CurOrderby"] = orderby;
            }
        }

        /// <summary>
        /// 
        /// </summary>
        /// <returns></returns>
        protected Dictionary<string, string> getParamsSource()
        {
            Dictionary<string, string> dicparams = new Dictionary<string, string>();

            if (!string.IsNullOrEmpty(QueryParamsDatas))
            {
                var arrayQueryParams = QueryParamsDatas.Split(new string[] { "|@|" }, StringSplitOptions.RemoveEmptyEntries);

                arrayQueryParams.ToList().ForEach(it =>
                {

                    var arraydata = it.Split(new string[] { "|*|" }, StringSplitOptions.None);

                    dicparams.Add(arraydata[0], arraydata[1]);
                });
            }

            return dicparams;
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="QueryparameName"></param>
        /// <returns></returns>
        public String getExtraString(string QueryparameName)
        {

            var datas = getParamsSource();

            string redata = "";

            if (datas.ContainsKey(QueryparameName))
            {
                redata = datas[QueryparameName];
            }

            return redata;
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="QueryparameName"></param>
        /// <returns></returns>
        public int? getExtraInt(string QueryparameName)
        {
            var datas = getParamsSource();

            Nullable<int> redata = new Nullable<int>();

            if (datas.ContainsKey(QueryparameName))
            {
                int idata = 0;

                if (int.TryParse(datas[QueryparameName], out idata))
                {
                    redata = idata;
                }
            }

            return redata;
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="QueryparameName"></param>
        /// <returns></returns>
        public bool? getExtraBool(string QueryparameName)
        {
            var datas = getParamsSource();

            if (datas.ContainsKey(QueryparameName))
            {
                if (datas[QueryparameName].ToLower().Contains("true"))
                {
                    return true;
                }
                else
                {
                    return false;
                }
            }
            else
            {
                return null;
            }
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="QueryparameName"></param>
        /// <returns></returns>
        public DateTime? getExtraDateTime(string QueryparameName)
        {
            var datas = getParamsSource();

            Nullable<DateTime> redata = new Nullable<DateTime>();

            if (datas.ContainsKey(QueryparameName))
            {
                DateTime idata = DateTime.MinValue;

                if (DateTime.TryParse(datas[QueryparameName], out idata))
                {
                    redata = idata;
                }
            }

            return redata;
        }

        /// <summary>
        /// 
        /// </summary>
        /// <param name="QueryparameName"></param>
        /// <returns></returns>
        public Guid? getExtraGuid(string QueryparameName)
        {

            var datas = getParamsSource();

            Nullable<Guid> redata = new Nullable<Guid>();

            if (datas.ContainsKey(QueryparameName))
            {
                Guid idata = Guid.Empty;

                if (Guid.TryParse(datas[QueryparameName], out idata))
                {
                    redata = idata;
                }
            }

            return redata;
        }
    }
}