mirror of
https://github.com/OPCFoundation/UA-.NETStandard.git
synced 2026-10-22 09:37:12 +08:00
AlinMoldovean
439 lines
14 KiB
C#
439 lines
14 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.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Text;
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using System.Windows.Forms;
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using System.Reflection;
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using Opc.Ua.Client;
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using Opc.Ua.Client.Controls;
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namespace Opc.Ua.Sample.Controls
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{
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public partial class WriteValueListCtrl : Opc.Ua.Client.Controls.BaseListCtrl
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{
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public WriteValueListCtrl()
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{
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InitializeComponent();
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SetColumns(m_ColumnNames);
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}
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#region Private Fields
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private Session m_session;
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/// <summary>
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/// The columns to display in the control.
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/// </summary>
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private readonly object[][] m_ColumnNames = new object[][]
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{
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new object[] { "Name", HorizontalAlignment.Left, null },
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new object[] { "NodeId", HorizontalAlignment.Left, null },
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new object[] { "Attribute", HorizontalAlignment.Left, "Value" },
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new object[] { "IndexRange", HorizontalAlignment.Left, "" },
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new object[] { "Value", HorizontalAlignment.Left, "" },
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new object[] { "Status", HorizontalAlignment.Left, "" },
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new object[] { "Timestamp", HorizontalAlignment.Left, "" }
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};
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#endregion
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#region Public Interface
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/// <summary>
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/// Clears the contents of the control,
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/// </summary>
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public void Clear()
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{
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ItemsLV.Items.Clear();
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AdjustColumns();
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}
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/// <summary>
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/// Sets the nodes in the control.
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/// </summary>
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public void Initialize(Session session, WriteValueCollection values)
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{
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if (session == null) throw new ArgumentNullException("session");
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Clear();
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m_session = session;
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if (values != null)
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{
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foreach (WriteValue value in values)
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{
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AddItem(value);
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}
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}
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AdjustColumns();
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}
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/// <summary>
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/// Adds a value to the control.
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/// </summary>
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public void AddValue(ReferenceDescription reference)
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{
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Node node = m_session.NodeCache.Find(reference.NodeId) as Node;
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if (node == null)
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{
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return;
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}
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WriteValue value = new WriteValue();
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value.NodeId = node.NodeId;
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value.AttributeId = Attributes.Value;
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value.IndexRange = null;
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// read the display name for non-variables.
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if ((node.NodeClass & (NodeClass.Variable | NodeClass.VariableType)) == 0)
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{
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value.AttributeId = Attributes.DisplayName;
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}
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value.Value = GetDefaultValue(value.NodeId, value.AttributeId);
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AddItem(value);
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AdjustColumns();
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}
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/// <summary>
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/// Returns the items in the control.
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/// </summary>
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public WriteValueCollection GetValues()
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{
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WriteValueCollection values = new WriteValueCollection();
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foreach (ListViewItem item in ItemsLV.Items)
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{
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WriteValue value = item.Tag as WriteValue;
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if (value != null)
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{
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value.Value.StatusCode = StatusCodes.Good;
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value.Value.ServerTimestamp = DateTime.MinValue;
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value.Value.SourceTimestamp = DateTime.MinValue;
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values.Add(value);
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}
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}
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return values;
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}
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/// <summary>
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/// Returns a default value for the node.
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/// </summary>
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private DataValue GetDefaultValue(NodeId nodeId, uint attributeId)
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{
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// find the node.
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Node node = m_session.NodeCache.Find(nodeId) as Node;
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if (node == null)
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{
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return new DataValue();
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}
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// read the current attribute value.
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DataValue value = new DataValue();
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ServiceResult result = node.Read(null, attributeId, value);
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if (ServiceResult.IsBad(result))
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{
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value.Value = GuiUtils.GetDefaultValue(Attributes.GetDataTypeId(attributeId), ValueRanks.Scalar);
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}
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// update the value attribute.
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if (attributeId == Attributes.Value)
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{
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try
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{
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return m_session.ReadValue(node.NodeId);
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}
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catch (Exception)
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{
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VariableNode variable = node as VariableNode;
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if (variable != null)
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{
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value.Value = GuiUtils.GetDefaultValue(variable.DataType, variable.ValueRank);
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}
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}
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}
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return value;
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}
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#endregion
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#region Overridden Methods
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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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EditValueMI_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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NewMI.Enabled = true;
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EditMI.Enabled = ItemsLV.SelectedItems.Count == 1;
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EditValueMI.Enabled = ItemsLV.SelectedItems.Count == 1;
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DeleteMI.Enabled = ItemsLV.SelectedItems.Count > 0;
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}
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/// <see cref="BaseListCtrl.UpdateItem" />
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protected override void UpdateItem(ListViewItem listItem, object item)
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{
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WriteValue value = item as WriteValue;
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if (value == 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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if (value.Value == null)
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{
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value.Value = new DataValue();
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}
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if (value.Value.Value == null)
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{
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value.Value = GetDefaultValue(value.NodeId, value.AttributeId);
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}
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Node node = m_session.NodeCache.Find(value.NodeId) as Node;
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if (node != null)
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{
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listItem.SubItems[0].Text = String.Format("{0}", node);
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}
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else
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{
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listItem.SubItems[0].Text = String.Format("{0}", value.NodeId);
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}
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listItem.SubItems[1].Text = String.Format("{0}", value.NodeId);
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listItem.SubItems[2].Text = String.Format("{0}", Attributes.GetBrowseName(value.AttributeId));
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listItem.SubItems[3].Text = String.Format("{0}", value.IndexRange);
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listItem.SubItems[4].Text = String.Format("{0}", value.Value.Value);
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listItem.SubItems[5].Text = String.Format("{0}", value.Value.StatusCode);
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listItem.SubItems[6].Text = String.Format("{0}", value.Value.SourceTimestamp);
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listItem.Tag = item;
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listItem.ImageKey = "DataType";
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}
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/// <summary>
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/// Handles a drop event.
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/// </summary>
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protected override void ItemsLV_DragDrop(object sender, DragEventArgs e)
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{
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try
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{
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ReferenceDescription reference = e.Data.GetData(typeof(ReferenceDescription)) 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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AddValue(reference);
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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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#region Event Handlers
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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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WriteValue value = new WriteValue();
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if (new WriteValueEditDlg().ShowDialog(m_session, value))
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{
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AddItem(value);
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}
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AdjustColumns();
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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 EditMI_Click(object sender, EventArgs e)
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{
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try
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{
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WriteValue[] values = GetSelectedItems(typeof(WriteValue)) as WriteValue[];
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if (values == null || values.Length != 1)
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{
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return;
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}
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if (new WriteValueEditDlg().ShowDialog(m_session, values[0]))
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{
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Node node = m_session.NodeCache.Find(values[0].NodeId) as Node;
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if (node != null)
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{
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DataValue value = new DataValue();
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ServiceResult result = node.Read(null, values[0].AttributeId, value);
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if (ServiceResult.IsGood(result))
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{
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values[0].Value = value;
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}
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}
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UpdateItem(ItemsLV.SelectedItems[0], values[0]);
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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 EditValueMI_Click(object sender, EventArgs e)
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{
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try
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{
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WriteValue[] values = GetSelectedItems(typeof(WriteValue)) as WriteValue[];
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if (values == null || values.Length != 1)
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{
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return;
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}
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NodeId datatypeId = Attributes.GetDataTypeId(values[0].AttributeId);
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int valueRank = Attributes.GetValueRank(values[0].AttributeId);
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if (values[0].AttributeId == Attributes.Value)
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{
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VariableNode node = m_session.NodeCache.Find(values[0].NodeId) as VariableNode;
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if (node != null)
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{
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datatypeId = node.DataType;
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valueRank = node.ValueRank;
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}
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}
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bool useIndexRange = false;
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object value = null;
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// check IndexRange for arrays
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if (values[0].AttributeId == Attributes.Value && valueRank > 0)
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{
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NumericRange indexRange;
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ServiceResult result = NumericRange.Validate(values[0].IndexRange, out indexRange);
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if (ServiceResult.IsGood(result) && indexRange != NumericRange.Empty)
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{
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useIndexRange = true;
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}
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}
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if (useIndexRange)
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{
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value = new ComplexValueEditDlg().ShowDialog(values[0]);
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WriteValue writeValue = value as WriteValue;
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if (writeValue != null)
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{
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value = writeValue.Value.Value;
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}
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}
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else
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{
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value = GuiUtils2.EditValue(m_session, values[0].Value.Value, datatypeId, valueRank);
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}
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if (value != null)
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{
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values[0].Value.Value = value;
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values[0].Value.StatusCode = StatusCodes.Good;
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UpdateItem(ItemsLV.SelectedItems[0], values[0]);
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AdjustColumns();
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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 DeleteMI_Click(object sender, EventArgs e)
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{
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try
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{
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List<ListViewItem> itemsToDelete = new List<ListViewItem>();
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foreach (ListViewItem item in ItemsLV.SelectedItems)
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{
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itemsToDelete.Add(item);
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}
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foreach (ListViewItem item in itemsToDelete)
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{
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item.Remove();
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}
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AdjustColumns();
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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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