using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AllBase.Extension
{
    public static class SortExtension
    {
        public static void Sort<T>(this ObservableCollection<T> collection, Func<T, object> keySelector)
        {
            var sortedList = collection.OrderBy(keySelector).ToList();
            for (int i = 0; i < collection.Count; i++)
            {
                if (!Equals(collection[i], sortedList[i]))
                {
                    collection.Move(collection.IndexOf(sortedList[i]), i);
                }
            }
        }

        public static void SortDesc<T>(this ObservableCollection<T> collection, Func<T, object> keySelector)
        {
            var sortedList = collection.OrderByDescending(keySelector).ToList();
            for (int i = 0; i < collection.Count; i++)
            {
                if (!Equals(collection[i], sortedList[i]))
                {
                    collection.Move(collection.IndexOf(sortedList[i]), i);
                }
            }
        }
    }
}