myfriendsaround/main/MyFriendsAround.Common/Entities/MyFriends.Model.cs

//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated from a template.
//
//     Changes to this file may cause incorrect behavior and will be lost if
//     the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Collections.Specialized;

namespace MyFriendsAround.Common.Entities
{
    // An System.Collections.ObjectModel.ObservableCollection that raises
    // individual item removal notifications on clear and prevents adding duplicates.
    public class FixupCollection<T> : ObservableCollection<T>
    {
        protected override void ClearItems()
        {
            new List<T>(this).ForEach(t => Remove(t));
        }
    
        protected override void InsertItem(int index, T item)
        {
            if (!this.Contains(item))
            {
                base.InsertItem(index, item);
            }
        }
    }
}