mirror of
https://github.com/OPCFoundation/UA-.NETStandard.git
synced 2026-10-23 02:00:00 +08:00
Erich Barnstedt
2901d8e5bb
2. Removed client cert validation from HTTPS client and server as this is not supported on all platforms, e.g. .Net4.6. 3. Reverted back to XmlDocument from XDocument as this is now supported via a NuGet package on UWP and XDocument is not supported on .Net4.6. 4. Baseline .Net4.6 samples and assoc. controls project check-in, not working yet. 5. Moved UWP client controls from SDK to Samples directly.
444 lines
14 KiB
C#
444 lines
14 KiB
C#
/* ========================================================================
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* Copyright (c) 2005-2013 The OPC Foundation, Inc. All rights reserved.
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*
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* OPC Foundation MIT License 1.00
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* The complete license agreement can be found here:
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* http://opcfoundation.org/License/MIT/1.00/
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* ======================================================================*/
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Text;
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using System.Windows.Forms;
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using System.Reflection;
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using Opc.Ua.Client;
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using Opc.Ua.Client.Controls;
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namespace Opc.Ua.Sample.Controls
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{
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public partial class EventNotificationListListCtrl : Opc.Ua.Client.Controls.BaseListCtrl
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{
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public EventNotificationListListCtrl()
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{
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InitializeComponent();
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SetColumns(m_ColumnNames);
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}
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#region Private Fields
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private int m_maxEventCount = 20;
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private Subscription m_subscription;
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private MonitoredItem m_monitoredItem;
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/// <summary>
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/// The columns to display in the control.
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/// </summary>
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private readonly object[][] m_ColumnNames = new object[][]
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{
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new object[] { "Item", HorizontalAlignment.Left, null },
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new object[] { "Type", HorizontalAlignment.Left, null },
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new object[] { "Source", HorizontalAlignment.Left, String.Empty },
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new object[] { "Time", HorizontalAlignment.Center, String.Empty },
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new object[] { "Severity", HorizontalAlignment.Center, String.Empty },
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new object[] { "Message", HorizontalAlignment.Left, String.Empty }
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};
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#endregion
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#region Public Interface
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/// <summary>
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/// The maximum number of events to display in the control.
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/// </summary>
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[DefaultValue(20)]
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public int MaxEventCount
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{
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get { return m_maxEventCount; }
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set { m_maxEventCount = value; }
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}
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/// <summary>
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/// Clears the contents of the control,
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/// </summary>
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public void Clear()
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{
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ItemsLV.Items.Clear();
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AdjustColumns();
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}
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/// <summary>
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/// Sets the nodes in the control.
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/// </summary>
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public void Initialize(Subscription subscription, MonitoredItem monitoredItem)
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{
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if (subscription == null) throw new ArgumentNullException("subscription");
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Clear();
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// start receiving notifications from the new subscription.
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m_subscription = subscription;
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m_monitoredItem = monitoredItem;
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// get the events.
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List<EventFieldList> events = new List<EventFieldList>();
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foreach (NotificationMessage message in m_subscription.Notifications)
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{
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foreach (EventFieldList eventFields in message.GetEvents(true))
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{
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if (m_monitoredItem != null)
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{
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if (m_monitoredItem.ClientHandle != eventFields.ClientHandle)
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{
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continue;
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}
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}
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else
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{
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if (m_subscription.FindItemByClientHandle(eventFields.ClientHandle) == null)
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{
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continue;
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}
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}
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events.Add(eventFields);
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if (events.Count >= MaxEventCount)
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{
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break;
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}
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}
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if (events.Count >= MaxEventCount)
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{
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break;
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}
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}
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UpdateEvents(events, 0);
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AdjustColumns();
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}
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/// <summary>
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/// Processes a new notification.
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/// </summary>
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public void NotificationReceived(NotificationEventArgs e)
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{
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// get the events.
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List<EventFieldList> events = new List<EventFieldList>();
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foreach (EventFieldList eventFields in e.NotificationMessage.GetEvents(true))
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{
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if (m_monitoredItem != null)
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{
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if (m_monitoredItem.ClientHandle != eventFields.ClientHandle)
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{
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continue;
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}
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}
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else
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{
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if (m_subscription.FindItemByClientHandle(eventFields.ClientHandle) == null)
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{
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continue;
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}
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}
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events.Add(eventFields);
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if (events.Count >= MaxEventCount)
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{
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break;
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}
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}
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// check if nothing more to do.
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if (events.Count == 0)
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{
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return;
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}
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int offset = events.Count;
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// fill in earlier events.
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foreach (ListViewItem listItem in ItemsLV.Items)
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{
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EventFieldList eventFields = listItem.Tag as EventFieldList;
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if (eventFields == null)
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{
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continue;
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}
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if (m_monitoredItem != null)
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{
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if (m_monitoredItem.ClientHandle != eventFields.ClientHandle)
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{
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continue;
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}
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}
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events.Add(eventFields);
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if (events.Count >= MaxEventCount)
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{
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break;
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}
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}
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UpdateEvents(events, offset);
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AdjustColumns();
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}
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/// <summary>
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/// Processes a new notification.
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/// </summary>
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public void NotificationReceived(MonitoredItemNotificationEventArgs e)
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{
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EventFieldList eventFields = e.NotificationValue as EventFieldList;
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if (eventFields == null)
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{
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return;
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}
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if (m_monitoredItem != null)
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{
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if (m_monitoredItem.ClientHandle != eventFields.ClientHandle)
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{
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return;
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}
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}
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// get the events.
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List<EventFieldList> events = new List<EventFieldList>();
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events.Add(eventFields);
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// fill in earlier events.
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foreach (ListViewItem listItem in ItemsLV.Items)
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{
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eventFields = listItem.Tag as EventFieldList;
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if (m_monitoredItem != null)
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{
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if (m_monitoredItem.ClientHandle != eventFields.ClientHandle)
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{
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continue;
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}
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}
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if (eventFields != null)
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{
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events.Add(eventFields);
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}
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if (events.Count >= MaxEventCount)
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{
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break;
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}
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}
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UpdateEvents(events, 1);
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AdjustColumns();
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}
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/// <summary>
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/// Processes a change to the subscription.
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/// </summary>
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public void SubscriptionChanged(SubscriptionStateChangedEventArgs e)
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{
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if ((e.Status & SubscriptionChangeMask.ItemsDeleted) != 0)
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{
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// collect events for items that have been deleted.
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List<ListViewItem> itemsToRemove = new List<ListViewItem>();
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foreach (ListViewItem listItem in ItemsLV.Items)
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{
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EventFieldList eventFields = listItem.Tag as EventFieldList;
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if (eventFields != null)
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{
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if (m_subscription.FindItemByClientHandle(eventFields.ClientHandle) == null)
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{
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itemsToRemove.Add(listItem);
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}
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}
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}
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// remove events for items that have been deleted.
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foreach (ListViewItem listItem in itemsToRemove)
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{
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listItem.Remove();
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}
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}
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}
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#endregion
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#region Overridden Methods
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/// <see cref="BaseListCtrl.EnableMenuItems" />
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protected override void EnableMenuItems(ListViewItem clickedItem)
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{
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ViewMI.Enabled = ItemsLV.SelectedItems.Count == 1;
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DeleteMI.Enabled = ItemsLV.SelectedItems.Count > 0;
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}
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/// <see cref="BaseListCtrl.PickItems" />
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protected override void PickItems()
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{
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base.PickItems();
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ViewMI_Click(this, null);
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}
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/// <summary>
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/// Updates the events displayed in the control.
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/// </summary>
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private void UpdateEvents(IList<EventFieldList> events, int offset)
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{
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// save selected indexes.
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List<int> indexes = new List<int>(ItemsLV.SelectedIndices.Count);
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foreach (int index in ItemsLV.SelectedIndices)
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{
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indexes.Add(index);
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}
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// update items.
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BeginUpdate();
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foreach (EventFieldList eventFields in events)
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{
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AddItem(eventFields);
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}
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EndUpdate();
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// preserve selection.
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foreach (int index in indexes)
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{
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ItemsLV.Items[index].Selected = false;
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if (index+offset < ItemsLV.Items.Count)
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{
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ItemsLV.Items[index+offset].Selected = true;
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}
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}
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}
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/// <see cref="BaseListCtrl.UpdateItem" />
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protected override void UpdateItem(ListViewItem listItem, object item)
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{
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EventFieldList eventFields = item as EventFieldList;
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if (eventFields == null)
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{
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base.UpdateItem(listItem, item);
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return;
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}
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MonitoredItem monitoredItem = m_subscription.FindItemByClientHandle(eventFields.ClientHandle);
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if (monitoredItem == null)
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{
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listItem.SubItems[0].Text = String.Format("[{0}]", eventFields.ClientHandle);
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listItem.SubItems[1].Text = "(unknown)";
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listItem.SubItems[2].Text = null;
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listItem.SubItems[3].Text = null;
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listItem.SubItems[4].Text = null;
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listItem.SubItems[5].Text = null;
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listItem.Tag = eventFields;
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return;
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}
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// get the event fields.
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NodeId eventType = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.EventType) as NodeId;
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string sourceName = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.SourceName) as string;
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DateTime? time = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.Time) as DateTime?;
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ushort? severity = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.Severity) as ushort?;
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LocalizedText message = monitoredItem.GetFieldValue(eventFields, ObjectTypes.BaseEventType, Opc.Ua.BrowseNames.Message) as LocalizedText;
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// fill in the columns.
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listItem.SubItems[0].Text = String.Format("[{0}]", eventFields.ClientHandle);
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INode typeNode = m_subscription.Session.NodeCache.Find(eventType);
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if (typeNode == null)
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{
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listItem.SubItems[1].Text = String.Format("{0}", eventType);
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}
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else
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{
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listItem.SubItems[1].Text = String.Format("{0}", typeNode);
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}
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listItem.SubItems[2].Text = String.Format("{0}", sourceName);
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if (time != null && time.Value != DateTime.MinValue)
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{
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listItem.SubItems[3].Text = String.Format("{0:HH:mm:ss.fff}", time.Value.ToLocalTime());
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}
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else
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{
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listItem.SubItems[3].Text = String.Empty;
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}
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listItem.SubItems[4].Text = String.Format("{0}", severity);
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if (message != null)
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{
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listItem.SubItems[5].Text = String.Format("{0}", message.Text);
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}
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else
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{
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listItem.SubItems[5].Text = String.Empty;
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}
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listItem.Tag = eventFields;
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}
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#endregion
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#region Event Handlers
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private void ViewMI_Click(object sender, EventArgs e)
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{
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try
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{
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EventFieldList fieldList = SelectedTag as EventFieldList;
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if (fieldList == null)
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{
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return;
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}
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new ComplexValueEditDlg().ShowDialog(fieldList, m_subscription.FindItemByClientHandle(fieldList.ClientHandle));
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}
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catch (Exception exception)
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{
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GuiUtils.HandleException(this.Text, MethodBase.GetCurrentMethod(), exception);
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}
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}
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#endregion
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}
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}
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