Samuele Locatelli
344 lines
12 KiB
C#
344 lines
12 KiB
C#
/* ========================================================================
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* Copyright (c) 2005-2020 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.Drawing;
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using System.Data;
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using System.Text;
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using System.Windows.Forms;
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using Opc.Ua;
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using Opc.Ua.Client;
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namespace Opc.Ua.Client.Controls
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{
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/// <summary>
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/// Displays the results from a history read operation.
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/// </summary>
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public partial class ReadRequestListViewCtrl : UserControl
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{
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#region Constructors
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/// <summary>
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/// Constructs a new instance.
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/// </summary>
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public ReadRequestListViewCtrl()
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{
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InitializeComponent();
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ResultsDV.AutoGenerateColumns = false;
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ImageList = new ClientUtils().ImageList;
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m_dataset = new DataSet();
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m_dataset.Tables.Add("Requests");
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m_dataset.Tables[0].Columns.Add("ReadValueId", typeof(ReadValueId));
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m_dataset.Tables[0].Columns.Add("Icon", typeof(Image));
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m_dataset.Tables[0].Columns.Add("NodeName", typeof(string));
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m_dataset.Tables[0].Columns.Add("Attribute", typeof(string));
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m_dataset.Tables[0].Columns.Add("IndexRange", typeof(string));
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m_dataset.Tables[0].Columns.Add("DataEncoding", typeof(QualifiedName));
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m_dataset.Tables[0].Columns.Add("DataValue", typeof(DataValue));
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m_dataset.Tables[0].Columns.Add("DataType", typeof(string));
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m_dataset.Tables[0].Columns.Add("Value", typeof(Variant));
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m_dataset.Tables[0].Columns.Add("StatusCode", typeof(StatusCode));
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m_dataset.Tables[0].Columns.Add("SourceTimestamp", typeof(string));
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m_dataset.Tables[0].Columns.Add("ServerTimestamp", typeof(string));
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ResultsDV.DataSource = m_dataset.Tables[0];
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}
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#endregion
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#region Private Fields
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private DataSet m_dataset;
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private Session m_session;
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private bool m_showResults;
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#endregion
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#region Public Members
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/// <summary>
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/// Changes the session used for the read request.
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/// </summary>
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public void ChangeSession(Session session)
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{
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m_session = session;
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}
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/// <summary>
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/// Adds a node to the read request.
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/// </summary>
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public void AddNodes(params ReadValueId[] nodesToRead)
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{
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if (nodesToRead != null)
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{
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for (int ii = 0; ii < nodesToRead.Length; ii++)
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{
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if (nodesToRead[ii] == null)
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{
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continue;
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}
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DataRow row = m_dataset.Tables[0].NewRow();
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UpdateRow(row, nodesToRead[ii]);
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m_dataset.Tables[0].Rows.Add(row);
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}
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}
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}
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/// <summary>
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/// Reads the values displayed in the control and moves to the display results state.
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/// </summary>
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public void Read()
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{
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if (m_session == null)
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{
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throw new ServiceResultException(StatusCodes.BadNotConnected);
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}
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// build list of values to read.
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ReadValueIdCollection nodesToRead = new ReadValueIdCollection();
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foreach (DataGridViewRow row in ResultsDV.Rows)
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{
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DataRowView source = row.DataBoundItem as DataRowView;
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ReadValueId value = (ReadValueId)source.Row[0];
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row.Selected = false;
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nodesToRead.Add(value);
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}
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// read the values.
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DataValueCollection results = null;
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DiagnosticInfoCollection diagnosticInfos = null;
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m_session.Read(
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null,
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0,
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TimestampsToReturn.Both,
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nodesToRead,
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out results,
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out diagnosticInfos);
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ClientBase.ValidateResponse(results, nodesToRead);
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ClientBase.ValidateDiagnosticInfos(diagnosticInfos, nodesToRead);
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IndexRangeCH.Visible = false;
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DataEncodingCH.Visible = false;
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DataTypeCH.Visible = true;
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ValueCH.Visible = true;
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StatusCodeCH.Visible = true;
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SourceTimestampCH.Visible = true;
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ServerTimestampCH.Visible = true;
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m_showResults = true;
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// add the results to the display.
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for (int ii = 0; ii < results.Count; ii++)
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{
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DataRowView source = ResultsDV.Rows[ii].DataBoundItem as DataRowView;
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UpdateRow(source.Row, results[ii]);
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}
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}
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/// <summary>
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/// Returns the grid to edit ReadValueIds state.
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/// </summary>
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public void Back()
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{
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IndexRangeCH.Visible = true;
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DataEncodingCH.Visible = true;
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DataTypeCH.Visible = false;
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ValueCH.Visible = false;
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StatusCodeCH.Visible = false;
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SourceTimestampCH.Visible = false;
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ServerTimestampCH.Visible = false;
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m_showResults = false;
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// clear any selection.
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foreach (DataGridViewRow row in ResultsDV.Rows)
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{
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row.Selected = false;
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}
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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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/// Updates the row with the node to read.
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/// </summary>
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public void UpdateRow(DataRow row, DataValue value)
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{
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row[6] = value;
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row[7] = (value.WrappedValue.TypeInfo != null) ? value.WrappedValue.TypeInfo.ToString() : String.Empty;
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row[8] = value.WrappedValue;
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row[9] = value.StatusCode;
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row[10] = (value.SourceTimestamp != DateTime.MinValue) ? Utils.Format("{0:hh:mm:ss.fff}", value.SourceTimestamp.ToLocalTime()) : String.Empty;
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row[11] = (value.ServerTimestamp != DateTime.MinValue) ? Utils.Format("{0:hh:mm:ss.fff}", value.ServerTimestamp.ToLocalTime()) : String.Empty;
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}
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/// <summary>
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/// Updates the row with the node to read.
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/// </summary>
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public void UpdateRow(DataRow row, ReadValueId nodeToRead)
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{
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row[0] = nodeToRead;
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row[1] = ImageList.Images[ClientUtils.GetImageIndex(nodeToRead.AttributeId, null)];
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row[2] = (m_session != null) ? m_session.NodeCache.GetDisplayText(nodeToRead.NodeId) : Utils.ToString(nodeToRead.NodeId);
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row[3] = Attributes.GetBrowseName(nodeToRead.AttributeId);
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row[4] = nodeToRead.IndexRange;
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row[5] = (nodeToRead.DataEncoding != null) ? nodeToRead.DataEncoding : QualifiedName.Null;
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}
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#endregion
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#region Event Handlers
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private void PopupMenu_Opening(object sender, CancelEventArgs e)
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{
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NewMI.Visible = !m_showResults;
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EditMI.Enabled = ResultsDV.SelectedRows.Count > 0;
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DeleteMI.Enabled = ResultsDV.SelectedRows.Count > 0;
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DeleteMI.Visible = !m_showResults;
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}
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private void NewMI_Click(object sender, EventArgs e)
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{
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try
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{
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if (!m_showResults)
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{
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ReadValueId nodeToRead = null;
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// use the first selected row as a template.
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foreach (DataGridViewRow row in ResultsDV.SelectedRows)
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{
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DataRowView source = row.DataBoundItem as DataRowView;
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ReadValueId value = (ReadValueId)source.Row[0];
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nodeToRead = (ReadValueId)value.MemberwiseClone();
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break;
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}
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if (nodeToRead == null)
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{
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nodeToRead = new ReadValueId() { AttributeId = Attributes.Value };
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}
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// edit the parameters.
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ReadValueId[] results = new EditReadValueIdDlg().ShowDialog(m_session, nodeToRead);
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if (results != null)
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{
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// add the new rows.
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for (int ii = 0; ii < results.Length; ii++)
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{
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DataRow row = m_dataset.Tables[0].NewRow();
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UpdateRow(row, results[ii]);
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m_dataset.Tables[0].Rows.Add(row);
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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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ClientUtils.HandleException(this.Text, exception);
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}
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}
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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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if (m_showResults)
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{
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foreach (DataGridViewRow row in ResultsDV.SelectedRows)
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{
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DataRowView source = row.DataBoundItem as DataRowView;
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ReadValueId nodeToRead = (ReadValueId)source.Row[0];
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DataValue value = (DataValue)source.Row[6];
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new EditComplexValueDlg().ShowDialog(
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m_session,
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null,
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0,
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null,
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value,
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true,
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"View Read Result");
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break;
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}
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}
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else
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{
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List<ReadValueId> nodesToRead = new List<ReadValueId>();
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foreach (DataGridViewRow row in ResultsDV.SelectedRows)
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{
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DataRowView source = row.DataBoundItem as DataRowView;
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ReadValueId value = (ReadValueId)source.Row[0];
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nodesToRead.Add(value);
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}
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ReadValueId[] results = new EditReadValueIdDlg().ShowDialog(m_session, nodesToRead.ToArray());
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if (results != null)
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{
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for (int ii = 0; ii < results.Length; ii++)
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{
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DataRowView source = ResultsDV.SelectedRows[ii].DataBoundItem as DataRowView;
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UpdateRow(source.Row, results[ii]);
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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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ClientUtils.HandleException(this.Text, exception);
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}
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}
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private void DeleteMI_Click(object sender, EventArgs e)
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{
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try
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{
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if (!m_showResults)
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{
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foreach (DataGridViewRow row in ResultsDV.SelectedRows)
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{
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DataRowView source = row.DataBoundItem as DataRowView;
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source.Row.Delete();
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}
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m_dataset.AcceptChanges();
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}
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}
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catch (Exception exception)
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{
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ClientUtils.HandleException(this.Text, 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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