Загрузка данных


using System.Collections.Generic;
using System.Windows;

namespace CatTable
{
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();

            List<Cat> cats = new List<Cat>
            {
                new Cat { Name = "Мурзик", Beauty = 9, Cuteness = 10 },
                new Cat { Name = "Барсик", Beauty = 8, Cuteness = 9 },
                new Cat { Name = "Луна", Beauty = 10, Cuteness = 10 },
                new Cat { Name = "Снежок", Beauty = 9, Cuteness = 8 },
                new Cat { Name = "Пушок", Beauty = 7, Cuteness = 10 }
            };

            CatGrid.ItemsSource = cats;
        }
    }

    public class Cat
    {
        public string Name { get; set; }
        public int Beauty { get; set; }
        public int Cuteness { get; set; }
    }
}