0101_1/WpfApp1/per.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Controls;
using System.Xml.Linq;

namespace WpfApp1
{
    public class per
    {
        public string pol { get; set; } = "";
        public override string ToString()
        {
            return $"{pol}";
        }
    }
}