StockElement

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using DevExpress.ExpressApp;
using DevExpress.Persistent.Base;
using DevExpress.Persistent.BaseImpl;
using DevExpress.Xpo;
using DevExpress.ExpressApp.Model;
using DevExpress.ExpressApp.DC;
using DevExpress.Persistent.Validation;
using DevExpress.Utils.MVVM.Services;

using System.Collections.Generic;




namespace SituatieIsis.Module.BusinessObjects
{
    [NavigationItem(false)]
    [XafDisplayName("StockItems")]

    public class StockElement : BaseObject
    {
        public StockElement(Session session) : base(session) { }

        private bool isLoaded = false;
            private bool isCreated = false;
            private Produse product;
            private int quantity;
            private decimal discount;


    //
            [ImmediatePostData]
            public virtual Produse Produs
            {
                get { return product; }
                set { product = value;// UpdateAmount();
                }
            }

        private int _Iesiri;
        private int _StocInitial;
        private int _Stoc;
        private int _Intrari;

        [ImmediatePostData]
        public int Iesiri
        {
            get
            {
                return _Iesiri;
            }
            set
            {
                SetPropertyValue("Iesiri", ref _Iesiri, value);
                SetStoc();
                OnChanged("Stoc");
            }
        }

        private void SetStoc()
        {
            if (IsLoading) return;
            try
            {
                Stoc = StocInitial + Intrari - Iesiri;
            }
            catch (Exception)
            {
                //TODO: de rezolvat cu clone

                throw new UserFriendlyException("Aceasta functionalitate nu este implementata");
            }
        }
        #region Campuri
        [ImmediatePostData]
        public int StocInitial
        {
            get
            {
                return _StocInitial;
            }
            set
            {
                SetPropertyValue("Stoc Initial", ref _StocInitial, value);
                SetStoc();
            }
        }

        [ImmediatePostData]
        public int Intrari
        {
            get
            {
                return _Intrari;
            }
            set
            {
                if (!SetPropertyValue("Intrari", ref _Intrari, value)) return;
                SetStoc();
                OnChanged("Stoc");
            }
        }


        [PersistentAlias("StocInitial+ Intrari - Iesiri")]
        public int Stoc
        {
            get
            {
                object tempObject = EvaluateAlias("Stoc");
                if (tempObject != null)
                {
                    return (int)tempObject;
                }
                else
                {
                    return 0;
                }


            }
            set
            {
                SetPropertyValue("Stoc", ref _Stoc, value);

            }
        }
        #endregion


    }
}