mirror of
https://github.com/OPCFoundation/UA-.NETStandard.git
synced 2026-10-25 20:00:31 +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.
489 lines
16 KiB
C#
489 lines
16 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.Threading;
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using System.Reflection;
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namespace Opc.Ua.Client.Controls
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{
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/// <summary>
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/// Displays a hierarchy of nodes.
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/// </summary>
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public partial class BrowseTreeCtrl : Opc.Ua.Client.Controls.BaseTreeCtrl
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{
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/// <summary>
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/// Initializes a new instance of the <see cref="BrowseTreeCtrl"/> class.
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/// </summary>
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public BrowseTreeCtrl()
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{
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InitializeComponent();
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foreach (BrowseDirection value in Enum.GetValues(typeof(BrowseDirection)))
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{
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BrowseDirectionCTRL.Items.Add(value);
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}
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}
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private NodeId m_rootId;
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private NodeId m_viewId;
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private Session m_session;
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private NodeId m_referenceTypeId;
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private BrowseDirection m_browseDirection;
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private BrowseListCtrl m_referencesCTRL;
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private AttributeListCtrl m_attributesCTRL;
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private event EventHandler<NodesSelectedEventArgs> m_nodesSelected;
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/// <summary>
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/// The control that displays the non-hierarchial references for the selected node.
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/// </summary>
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public BrowseListCtrl ReferencesCTRL
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{
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get { return m_referencesCTRL; }
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set { m_referencesCTRL = value; }
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}
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/// <summary>
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/// The control that displays the attributes/properties for the selected node.
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/// </summary>
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public AttributeListCtrl AttributesCTRL
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{
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get { return m_attributesCTRL; }
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set { m_attributesCTRL = value; }
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}
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/// <summary>
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/// Raised when the select menu item is clicked.
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/// </summary>
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public event EventHandler<NodesSelectedEventArgs> NodesSelected
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{
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add { m_nodesSelected += value; }
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remove { m_nodesSelected -= value; }
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}
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#region NodesSelectedEventArgs Class
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/// <summary>
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/// Specifies the nodes that where selected in the control.
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/// </summary>
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public class NodesSelectedEventArgs : EventArgs
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{
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/// <summary>
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/// Constructs a new object.
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/// </summary>
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public NodesSelectedEventArgs(IList<ReferenceDescription> nodes)
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{
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m_nodes = nodes;
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}
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/// <summary>
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/// The nodes that where selected.
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/// </summary>
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public IList<ReferenceDescription> Nodes
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{
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get { return m_nodes; }
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}
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private IList<ReferenceDescription> m_nodes;
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}
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#endregion
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/// <summary>
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/// Displays the a root in the control.
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/// </summary>
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public void Initialize(
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Session session,
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NodeId rootId,
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NodeId viewId,
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NodeId referenceTypeId,
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BrowseDirection browseDirection)
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{
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m_session = session;
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m_rootId = rootId;
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m_viewId = viewId;
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m_referenceTypeId = referenceTypeId;
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m_browseDirection = browseDirection;
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NodesTV.Nodes.Clear();
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if (m_session == null)
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{
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return;
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}
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if (NodeId.IsNull(m_rootId))
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{
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m_rootId = Objects.RootFolder;
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}
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if (NodeId.IsNull(m_referenceTypeId))
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{
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m_referenceTypeId = ReferenceTypeIds.HierarchicalReferences;
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}
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ReferenceTypeCTRL.Initialize(m_session, ReferenceTypeIds.HierarchicalReferences);
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ReferenceTypeCTRL.SelectedTypeId = m_referenceTypeId;
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ILocalNode root = m_session.NodeCache.Find(m_rootId) as ILocalNode;
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if (root == null)
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{
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return;
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}
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ReferenceDescription reference = new ReferenceDescription();
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reference.ReferenceTypeId = referenceTypeId;
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reference.IsForward = true;
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reference.NodeId = root.NodeId;
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reference.NodeClass = root.NodeClass;
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reference.BrowseName = root.BrowseName;
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reference.DisplayName = root.DisplayName;
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reference.TypeDefinition = root.TypeDefinitionId;
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TreeNode rootNode = new TreeNode(reference.ToString());
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rootNode.ImageKey = rootNode.SelectedImageKey = GuiUtils.GetTargetIcon(session, reference);
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rootNode.Tag = reference;
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rootNode.Nodes.Add(new TreeNode());
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NodesTV.Nodes.Add(rootNode);
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}
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/// <summary>
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/// Browses the children of the node and updates the tree.
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/// </summary>
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private bool BrowseChildren(TreeNode parent)
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{
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ReferenceDescription reference = parent.Tag as ReferenceDescription;
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if (reference == null)
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{
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return false;
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}
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parent.Nodes.Clear();
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if (reference.NodeId.IsAbsolute)
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{
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return false;
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}
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BrowseDescription nodeToBrowse = new BrowseDescription();
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nodeToBrowse.NodeId = (NodeId)reference.NodeId;
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nodeToBrowse.BrowseDirection = m_browseDirection;
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nodeToBrowse.ReferenceTypeId = m_referenceTypeId;
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nodeToBrowse.IncludeSubtypes = true;
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nodeToBrowse.NodeClassMask = 0;
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nodeToBrowse.ResultMask = (uint)(int)BrowseResultMask.All;
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BrowseDescriptionCollection nodesToBrowse = new BrowseDescriptionCollection();
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nodesToBrowse.Add(nodeToBrowse);
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ViewDescription view = null;
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if (NodeId.IsNull(m_viewId))
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{
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view = new ViewDescription();
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view.ViewId = m_viewId;
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view.Timestamp = DateTime.MinValue;
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view.ViewVersion = 0;
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}
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BrowseResultCollection results = null;
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DiagnosticInfoCollection diagnosticInfos = null;
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m_session.Browse(
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null,
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view,
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0,
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nodesToBrowse,
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out results,
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out diagnosticInfos);
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if (results.Count != 1 || StatusCode.IsBad(results[0].StatusCode))
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{
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return false;
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}
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UpdateNode(parent, results[0].References);
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while (results[0].ContinuationPoint != null && results[0].ContinuationPoint.Length > 0)
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{
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ByteStringCollection continuationPoints = new ByteStringCollection();
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continuationPoints.Add(results[0].ContinuationPoint);
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m_session.BrowseNext(
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null,
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parent == null,
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continuationPoints,
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out results,
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out diagnosticInfos);
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if (results.Count != 1 || StatusCode.IsBad(results[0].StatusCode))
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{
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return false;
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}
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UpdateNode(parent, results[0].References);
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}
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return true;
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}
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/// <summary>
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/// Adds the browse results to the node (if not null).
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/// </summary>
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private void UpdateNode(TreeNode parent, ReferenceDescriptionCollection references)
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{
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try
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{
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for (int ii = 0; ii < references.Count; ii++)
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{
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ReferenceDescription reference = references[ii];
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TreeNode childNode = new TreeNode(reference.ToString());
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childNode.ImageKey = childNode.SelectedImageKey = GuiUtils.GetTargetIcon(m_session, reference);
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childNode.Tag = reference;
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childNode.Nodes.Add(new TreeNode());
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parent.Nodes.Add(childNode);
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}
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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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#region Overridden Members
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/// <see cref="BaseTreeCtrl.SelectNode" />
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protected override void SelectNode()
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{
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base.SelectNode();
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ReferenceDescription reference = NodesTV.SelectedNode.Tag as ReferenceDescription;
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if (reference == null)
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{
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return;
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}
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// update attributes control.
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if (AttributesCTRL != null)
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{
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AttributesCTRL.Initialize(m_session, reference.NodeId);
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}
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// update references control.
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if (ReferencesCTRL != null)
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{
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ReferencesCTRL.Initialize(m_session, reference.NodeId);
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}
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}
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/// <see cref="BaseTreeCtrl.BeforeExpand" />
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protected override bool BeforeExpand(TreeNode clickedNode)
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{
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try
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{
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// check if a placeholder child is present.
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if (clickedNode.Nodes.Count == 1 && clickedNode.Nodes[0].Text == String.Empty)
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{
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// browse.
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return !BrowseChildren(clickedNode);
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}
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// do not cancel expand.
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return false;
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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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return false;
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}
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}
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/// <see cref="BaseTreeCtrl.EnableMenuItems" />
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protected override void EnableMenuItems(TreeNode clickedNode)
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{
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if (NodesTV.SelectedNode == null)
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{
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return;
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}
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SelectMI.Enabled = true;
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if (NodesTV.SelectedNode.Nodes.Count > 0 && NodesTV.SelectedNode.Nodes[0].Text != String.Empty)
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{
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SelectChildrenMI.Enabled = true;
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}
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}
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#endregion
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#region Event Handlers
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private void RootBTN_Click(object sender, EventArgs e)
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{
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try
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{
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if (NodesTV.SelectedNode == null)
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{
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return;
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}
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ReferenceDescription reference = NodesTV.SelectedNode.Tag as ReferenceDescription;
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if (reference == null || reference.NodeId.IsAbsolute)
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{
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return;
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}
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Initialize(m_session, (NodeId)reference.NodeId, m_viewId, m_referenceTypeId, m_browseDirection);
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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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private void BrowseDirectionCTRL_SelectedIndexChanged(object sender, EventArgs e)
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{
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try
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{
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m_browseDirection = (BrowseDirection)BrowseDirectionCTRL.SelectedItem;
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if (NodesTV.SelectedNode != null)
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{
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NodesTV.SelectedNode.Collapse();
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NodesTV.SelectedNode.Nodes.Clear();
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NodesTV.SelectedNode.Nodes.Add(new TreeNode());
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NodesTV.SelectedNode.Expand();
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return;
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}
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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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private void SelectMI_Click(object sender, EventArgs e)
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{
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try
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{
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if (m_nodesSelected != null)
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{
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if (NodesTV.SelectedNode == null)
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{
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return;
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}
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ReferenceDescription reference = NodesTV.SelectedNode.Tag as ReferenceDescription;
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if (reference != null)
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{
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ReferenceDescriptionCollection collection = new ReferenceDescriptionCollection();
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collection.Add(reference);
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m_nodesSelected(this, new NodesSelectedEventArgs(collection));
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}
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}
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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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private void SelectChildrenMI_Click(object sender, EventArgs e)
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{
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try
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{
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if (m_nodesSelected != null)
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{
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if (NodesTV.SelectedNode == null || NodesTV.SelectedNode.Nodes.Count == 0)
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{
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return;
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}
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ReferenceDescriptionCollection collection = new ReferenceDescriptionCollection();
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foreach (TreeNode child in NodesTV.SelectedNode.Nodes)
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{
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ReferenceDescription reference = child.Tag as ReferenceDescription;
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if (reference != null)
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{
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collection.Add(reference);
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}
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}
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if (collection.Count > 0)
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{
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m_nodesSelected(this, new NodesSelectedEventArgs(collection));
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}
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}
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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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private void ReferenceTypeCTRL_ReferenceSelectionChanged(object sender, ReferenceTypeCtrl.ReferenceSelectedEventArgs e)
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{
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try
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{
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m_referenceTypeId = e.ReferenceTypeId;
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if (NodesTV.SelectedNode != null)
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{
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NodesTV.SelectedNode.Collapse();
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NodesTV.SelectedNode.Nodes.Clear();
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NodesTV.SelectedNode.Nodes.Add(new TreeNode());
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NodesTV.SelectedNode.Expand();
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return;
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}
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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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