mirror of
https://github.com/OPCFoundation/UA-.NETStandard.git
synced 2026-10-22 09:37:12 +08:00
AlinMoldovean
537 lines
18 KiB
C#
537 lines
18 KiB
C#
/* ========================================================================
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* Copyright (c) 2005-2019 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.Text;
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using Opc.Ua.Client;
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using Opc.Ua.Client.Controls;
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using Windows.UI.Xaml.Controls;
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namespace Opc.Ua.Sample.Controls
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{
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public partial class AttributeListCtrl : BaseListCtrl
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{
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#region Private Fields
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private Session m_session;
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private NodeId m_nodeId;
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private bool m_readOnly;
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#endregion
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#region Public Interface
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/// <summary>
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///
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/// </summary>
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public bool ReadOnly
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{
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get { return m_readOnly; }
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set { m_readOnly = 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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}
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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(Session session, ExpandedNodeId nodeId)
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{
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if (session == null) throw new ArgumentNullException("session");
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Clear();
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if (nodeId == null)
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{
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return;
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}
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m_session = session;
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m_nodeId = (NodeId)nodeId;
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INode node = m_session.NodeCache.Find(m_nodeId);
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if (node != null && (node.NodeClass & (NodeClass.Variable | NodeClass.Object)) != 0)
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{
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AddReferences(ReferenceTypeIds.HasTypeDefinition, BrowseDirection.Forward);
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AddReferences(ReferenceTypeIds.HasModellingRule, BrowseDirection.Forward);
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}
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AddAttributes();
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AddProperties();
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}
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#endregion
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#region NodeField Class
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/// <summary>
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/// A field associated with a node.
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/// </summary>
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private class NodeField
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{
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public string Name;
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public object Value;
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public StatusCode StatusCode;
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public DiagnosticInfo DiagnosticInfo;
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public ReadValueId ValueId;
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}
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#endregion
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#region Private Methods
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/// <summary>
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/// Adds the attributes to the control.
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/// </summary>
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private void AddAttributes()
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{
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// build list of attributes to read.
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ReadValueIdCollection nodesToRead = new ReadValueIdCollection();
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foreach (uint attributeId in Attributes.GetIdentifiers())
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{
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ReadValueId valueId = new ReadValueId();
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valueId.NodeId = m_nodeId;
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valueId.AttributeId = attributeId;
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valueId.IndexRange = null;
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valueId.DataEncoding = null;
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nodesToRead.Add(valueId);
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}
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// read attributes.
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DataValueCollection values;
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DiagnosticInfoCollection diagnosticInfos;
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m_session.Read(
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null,
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0,
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TimestampsToReturn.Neither,
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nodesToRead,
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out values,
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out diagnosticInfos);
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ClientBase.ValidateResponse(values, nodesToRead);
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ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
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// update control.
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for (int ii = 0; ii < nodesToRead.Count; ii++)
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{
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// check if node supports attribute.
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if (values[ii].StatusCode == StatusCodes.BadAttributeIdInvalid)
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{
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continue;
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}
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NodeField field = new NodeField();
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field.ValueId = nodesToRead[ii];
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field.Name = Attributes.GetBrowseName(nodesToRead[ii].AttributeId);
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field.Value = values[ii].Value;
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field.StatusCode = values[ii].StatusCode;
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if (diagnosticInfos != null && diagnosticInfos.Count > ii)
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{
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field.DiagnosticInfo = diagnosticInfos[ii];
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}
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AddItem(field, "SimpleItem", -1);
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}
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}
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private void AddItem(NodeField field, string v1, int v2)
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{
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throw new NotImplementedException();
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}
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/// <summary>
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/// Adds the properties to the control.
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/// </summary>
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private void AddProperties()
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{
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// build list of properties to read.
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ReadValueIdCollection nodesToRead = new ReadValueIdCollection();
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Browser browser = new Browser(m_session);
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browser.BrowseDirection = BrowseDirection.Forward;
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browser.ReferenceTypeId = ReferenceTypeIds.HasProperty;
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browser.IncludeSubtypes = true;
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browser.NodeClassMask = (int)NodeClass.Variable;
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browser.ContinueUntilDone = true;
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ReferenceDescriptionCollection references = browser.Browse(m_nodeId);
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foreach (ReferenceDescription reference in references)
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{
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ReadValueId valueId = new ReadValueId();
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valueId.NodeId = (NodeId)reference.NodeId;
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valueId.AttributeId = Attributes.Value;
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valueId.IndexRange = null;
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valueId.DataEncoding = null;
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nodesToRead.Add(valueId);
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}
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// check for empty list.
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if (nodesToRead.Count == 0)
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{
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return;
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}
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// read values.
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DataValueCollection values;
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DiagnosticInfoCollection diagnosticInfos;
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m_session.Read(
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null,
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0,
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TimestampsToReturn.Neither,
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nodesToRead,
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out values,
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out diagnosticInfos);
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ClientBase.ValidateResponse(values, nodesToRead);
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ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
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// update control.
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for (int ii = 0; ii < nodesToRead.Count; ii++)
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{
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NodeField field = new NodeField();
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field.ValueId = nodesToRead[ii];
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field.Name = references[ii].ToString();
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field.Value = values[ii].Value;
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field.StatusCode = values[ii].StatusCode;
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if (diagnosticInfos != null && diagnosticInfos.Count > ii)
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{
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field.DiagnosticInfo = diagnosticInfos[ii];
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}
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AddItem(field, "Property", -1);
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}
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}
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/// <summary>
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/// Adds the targets of references to the control.
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/// </summary>
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private void AddReferences(NodeId referenceTypeId, BrowseDirection browseDirection)
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{
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// fetch the attributes for the reference type.
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INode referenceType = m_session.NodeCache.Find(referenceTypeId);
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if (referenceType == null)
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{
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return;
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}
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// browse for the references.
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Browser browser = new Browser(m_session);
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browser.BrowseDirection = browseDirection;
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browser.ReferenceTypeId = referenceTypeId;
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browser.IncludeSubtypes = true;
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browser.NodeClassMask = 0;
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browser.ContinueUntilDone = true;
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ReferenceDescriptionCollection references = browser.Browse(m_nodeId);
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// add results to list.
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foreach (ReferenceDescription reference in references)
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{
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NodeField field = new NodeField();
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field.Name = referenceType.ToString();
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field.Value = reference.ToString();
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field.StatusCode = StatusCodes.Good;
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AddItem(field, "ReferenceType", -1);
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}
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}
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/// <summary>
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/// Formats the value of an attribute.
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/// </summary>
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private string FormatAttributeValue(uint attributeId, object value)
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{
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switch (attributeId)
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{
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case Attributes.NodeClass:
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{
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if (value != null)
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{
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return String.Format("{0}", Enum.ToObject(typeof(NodeClass), value));
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}
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return "(null)";
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}
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case Attributes.DataType:
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{
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NodeId datatypeId = value as NodeId;
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if (datatypeId != null)
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{
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INode datatype = m_session.NodeCache.Find(datatypeId);
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if (datatype != null)
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{
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return String.Format("{0}", datatype.DisplayName.Text);
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}
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else
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{
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return String.Format("{0}", datatypeId);
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}
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}
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return String.Format("{0}", value);
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}
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case Attributes.ValueRank:
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{
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int? valueRank = value as int?;
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if (valueRank != null)
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{
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switch (valueRank.Value)
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{
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case ValueRanks.Scalar: return "Scalar";
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case ValueRanks.OneDimension: return "OneDimension";
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case ValueRanks.OneOrMoreDimensions: return "OneOrMoreDimensions";
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case ValueRanks.Any: return "Any";
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default:
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{
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return String.Format("{0}", valueRank.Value);
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}
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}
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}
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return String.Format("{0}", value);
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}
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case Attributes.MinimumSamplingInterval:
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{
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double? minimumSamplingInterval = value as double?;
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if (minimumSamplingInterval != null)
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{
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if (minimumSamplingInterval.Value == MinimumSamplingIntervals.Indeterminate)
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{
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return "Indeterminate";
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}
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else if (minimumSamplingInterval.Value == MinimumSamplingIntervals.Continuous)
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{
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return "Continuous";
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}
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return String.Format("{0}", minimumSamplingInterval.Value);
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}
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return String.Format("{0}", value);
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}
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case Attributes.AccessLevel:
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case Attributes.UserAccessLevel:
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{
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byte accessLevel = Convert.ToByte(value);
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StringBuilder bits = new StringBuilder();
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if ((accessLevel & AccessLevels.CurrentRead) != 0)
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{
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bits.Append("Readable");
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}
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if ((accessLevel & AccessLevels.CurrentWrite) != 0)
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{
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if (bits.Length > 0)
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{
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bits.Append(" | ");
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}
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bits.Append("Writeable");
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}
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if ((accessLevel & AccessLevels.HistoryRead) != 0)
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{
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if (bits.Length > 0)
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{
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bits.Append(" | ");
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}
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bits.Append("History");
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}
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if ((accessLevel & AccessLevels.HistoryWrite) != 0)
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{
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if (bits.Length > 0)
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{
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bits.Append(" | ");
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}
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bits.Append("History Update");
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}
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if (bits.Length == 0)
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{
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bits.Append("No Access");
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}
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return String.Format("{0}", bits);
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}
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case Attributes.EventNotifier:
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{
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byte notifier = Convert.ToByte(value);
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StringBuilder bits = new StringBuilder();
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if ((notifier & EventNotifiers.SubscribeToEvents) != 0)
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{
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bits.Append("Subscribe");
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}
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if ((notifier & EventNotifiers.HistoryRead) != 0)
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{
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if (bits.Length > 0)
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{
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bits.Append(" | ");
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}
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bits.Append("History");
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}
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if ((notifier & EventNotifiers.HistoryWrite) != 0)
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{
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if (bits.Length > 0)
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{
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bits.Append(" | ");
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}
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bits.Append("History Update");
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}
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if (bits.Length == 0)
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{
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bits.Append("No Access");
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}
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return String.Format("{0}", bits);
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}
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default:
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{
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return String.Format("{0}", value);
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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.GetDataToDrag" />
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protected override object GetDataToDrag()
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{
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ReadValueIdCollection valueIds = new ReadValueIdCollection();
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foreach (ListViewItem listItem in ItemsLV.SelectedItems)
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{
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NodeField field = listItem.Tag as NodeField;
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if (field != null && field.ValueId != null)
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{
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valueIds.Add(field.ValueId);
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}
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}
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return valueIds;
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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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EditMI_Click(this, null);
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}
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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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NodeField[] items = GetSelectedItems(typeof(NodeField)) as NodeField[];
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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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NodeField field = item as NodeField;
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if (field == 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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listItem.Tag = item;
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}
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#endregion
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private void EditMI_Click(object sender, EventArgs e)
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{
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try
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{
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NodeField[] items = GetSelectedItems(typeof(NodeField)) as NodeField[];
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if (items != null && items.Length == 1)
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{
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object value = GuiUtils.EditValue(m_session, items[0].Value);
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if (!m_readOnly)
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{
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if (value != null)
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{
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items[0].Value = value;
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UpdateItem((ListViewItem) ItemsLV.SelectedItems[0], items[0]);
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}
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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(String.Empty, GuiUtils.CallerName(), exception);
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}
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}
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}
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}
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