poc-misc/ListViewNativeArrowIconPoC/WinformPocForm.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace ListViewNativeArrowIconPoC
{
    public partial class WinformPocForm : Form
    {
        private readonly ColumnSorter _lstColumnSorter = new ColumnSorter();

        public WinformPocForm()
        {
            InitializeComponent();

            MainListView.ListViewItemSorter = _lstColumnSorter;

        }

        private void MainListView_ColumnClick(object sender, ColumnClickEventArgs e)
        {
            var listView = (ListView)sender;

            // Determine if clicked column is already the column that is being sorted.
            if (e.Column == _lstColumnSorter.SortColumn)
            {
                // Reverse the current sort direction for this column.
                _lstColumnSorter.Order =
                    _lstColumnSorter.Order == SortOrder.Ascending
                        ? SortOrder.Descending
                        : SortOrder.Ascending;
            }
            else
            {
                // Set the column number that is to be sorted; default to ascending.
                _lstColumnSorter.SortColumn = e.Column;
                _lstColumnSorter.Order = SortOrder.Ascending;
            }

            // Perform the sort with these new sort options.
            listView.Sort();
            listView.SetSortIcon(_lstColumnSorter.SortColumn, _lstColumnSorter.Order);
        }
    }
}