66 lines
1.9 KiB
C#
66 lines
1.9 KiB
C#
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/*
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* UpdateNotifyingList.cs
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*
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* Copyright © 2009
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* Diversified Technical Systems, Inc.
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* All Rights Reserved
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*/
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using DTS.Common.Utilities.DotNetProgrammingConstructs;
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namespace DTS.Common.Utilities
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{
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public class UpdateNotifyingList<T> : Exceptional
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{
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/// <summary>
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/// Initialize an instance of the UpdateNotifyingList class.
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/// </summary>
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public UpdateNotifyingList()
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{
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}
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/// <summary>
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/// Get/set the notification-bound items in this list.
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/// </summary>
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public List<T> Items
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{
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get => _Items.Value;
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set
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{
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try
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{ //
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// Update list items and then notify all subscribers.
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//
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_Items.Value = value;
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OnUpdate(value);
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}
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catch (System.Exception ex)
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{
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throw new UpdateNotifyingList<T>.Exception("encountered problem setting UpdateNotifyingList.Items", ex);
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}
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}
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}
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private Property<List<T>> _Items
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= new Property<List<T>>("NotifyingList", null, false);
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/// <summary>
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/// Callback method to be invoked whenever the notifying list is updated.
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/// </summary>
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///
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/// <param name="updatedContents">
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/// The updated contents of the notifying list.
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/// </param>
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///
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public delegate void OnUpdateCallback(List<T> updatedContents);
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/// <summary>
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/// Subscribers to be notified whenever this list is changed.
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/// </summary>
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public event OnUpdateCallback OnUpdate;
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}
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}
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