prs/prs.mobile.new/PRS.Mobile/Data Models/Lists/StockHolding/StockHoldingGroup.cs

using System;
using System.Collections.Generic;

namespace PRS.Mobile
{
    public class StockHoldingGroup
    {
        public String UnitSize { get; private set; }

        public StockHoldingGroup(String unitsize)
        {
            UnitSize = unitsize;
        }
    }
    
    public class StockHoldingGroupEqualityComparer : IEqualityComparer<StockHoldingGroup>
    {
        public bool Equals(StockHoldingGroup x, StockHoldingGroup y)
        {
            if (ReferenceEquals(x, y)) return true;
            if (ReferenceEquals(x, null)) return false;
            if (ReferenceEquals(y, null)) return false;
            if (x.GetType() != y.GetType()) return false;
            return x.UnitSize == y.UnitSize;
        }

        public int GetHashCode(StockHoldingGroup obj)
        {
            return (obj.UnitSize != null ? obj.UnitSize.GetHashCode() : 0);
        }
    }
}