SortableBindingList.cs :  » Network-Clients » iReaper » IReaper » C# / CSharp Open Source

using System;
using System.Collections.Generic;
using System.Text;
using System.ComponentModel;

namespace IReaper{
    public class SortableBindingList<T>:BindingList<T>
    {
        ListSortDirection m_SortDirection = ListSortDirection.Ascending;
        PropertyDescriptor m_SortProperty = null;
        static ListChangedEventArgs resetChangedEvent = new ListChangedEventArgs(ListChangedType.Reset, -1);
        bool m_Sorted = false;
        protected override bool SupportsSortingCore
        {
            get
            {
                return true;
            }
        }

        protected override void ApplySortCore(PropertyDescriptor prop, ListSortDirection direction)
        {
            this.m_SortProperty = prop;
            this.m_SortDirection = direction;
            List<T> list = this.Items as List<T>;
            if (list == null)
            { return; }
            SortCompare<T> compare = new SortCompare<T>(prop, direction);
            list.Sort(compare);
            this.m_Sorted = true;
            OnListChanged(resetChangedEvent);
        }
        /// <summary>
        /// 
        /// </summary>
        protected override bool IsSortedCore
        {
            get
            {
                return true;
            }
        }
        /// <summary>
        /// 
        /// </summary>
        protected override ListSortDirection SortDirectionCore
        {
            get
            {
                return this.m_SortDirection;
            }
        }

        /// <summary>
        /// 
        /// </summary>
        protected override PropertyDescriptor SortPropertyCore
        {
            get
            {
                return this.m_SortProperty;
            }
        }
    }
}