//******************************************************************************************************//  SelectMeasurements.cs - Gbtc////  Copyright © 2010, Grid Protection Alliance.  All Rights Reserved.////  Licensed to the Grid Protection Alliance (GPA) under one or more contributor license agreements. See//  the NOTICE file distributed with this work for additional information regarding copyright ownership.//  The GPA licenses this file to you under the MIT License (MIT), the "License"; you may//  not use this file except in compliance with the License. You may obtain a copy of the License at:////      http://www.opensource.org/licenses/MIT////  Unless agreed to in writing, the subject software distributed under the License is distributed on an//  "AS-IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. Refer to the//  License for the specific language governing permissions and limitations.////  Code Modification History://  ----------------------------------------------------------------------------------------------------//  05/17/2011 - Mehulbhai P Thakkar//       Generated original version of source code.////****************************************************************************************************** using System;using System.Collections.ObjectModel;using System.Linq;using System.Windows;using System.Windows.Input;using GSF.TimeSeries.Transport.UI.DataModels;using GSF.TimeSeries.UI;using GSF.TimeSeries.UI.Commands;using DataModelMeasurement = GSF.TimeSeries.UI.DataModels.Measurement; namespace GSF.TimeSeries.Transport.UI.ViewModels{    /// <summary>    /// Class to hold bindable <see cref="DataModelMeasurement"/> collection.    /// </summary>    internal class SelectMeasurements : PagedViewModelBase<DataModelMeasurement, Guid>    {        #region [ Members ]         // Fields        private ObservableCollection<DataModelMeasurement> m_measurements;        private RelayCommand m_searchCommand;        private RelayCommand m_showAllCommand;        private readonly bool m_filterByInternal;        private readonly bool m_includeInternal;        private readonly int m_deviceID;         #endregion         #region [ Properties ]         /// <summary>        /// Gets flag that determines if <see cref="PagedViewModelBase{T1, T2}.CurrentItem"/> is a new record.        /// </summary>        public override bool IsNewRecord        {            get            {                return (CurrentItem.SignalID == null || CurrentItem.SignalID == Guid.Empty);            }        }         /// <summary>        /// Gets <see cref="ICommand"/> to search within measurements.        /// </summary>        public ICommand SearchCommand        {            get            {                if (m_searchCommand == null)                    m_searchCommand = new RelayCommand(Search, (param) => true);                 return m_searchCommand;            }        }         /// <summary>        /// Gets <see cref="ICommand"/> to show all measurements.        /// </summary>        public ICommand ShowAllCommand        {            get            {                if (m_showAllCommand == null)                    m_showAllCommand = new RelayCommand(ShowAll);                 return m_showAllCommand;            }        }         #endregion         #region [ Constructors ]         /// <summary>        /// Creates an instance of <see cref="SelectMeasurements"/> class.        /// </summary>        /// <param name="itemsPerPage">Number of items to display on a page.</param>        /// <param name="autosave">Boolean indicator to save data automatically.</param>        /// <param name="filterByInternal">Boolean indicator to determine if only measurements with internal flag set to true needs to be displayed.</param>        /// <param name="deviceID">ID of the device to filter data.</param>        /// <param name="includeInternal">Flag to determine if internal measurements should be included.</param>        public SelectMeasurements(int itemsPerPage, bool autosave = true, bool filterByInternal = false, int deviceID = 0, bool includeInternal = false)            : base(0, autosave)     // Set ItemsPerPage to zero to avoid load() in the base class.        {            ItemsPerPage = itemsPerPage;            m_filterByInternal = filterByInternal;            m_includeInternal = includeInternal;            m_deviceID = deviceID;            Load();        }         #endregion         #region [ Methods ]         /// <summary>        /// Gets the primary key value of the <see cref="PagedViewModelBase{T1, T2}.CurrentItem"/>.        /// </summary>        /// <returns>The primary key value of the <see cref="PagedViewModelBase{T1, T2}.CurrentItem"/>.</returns>        public override Guid GetCurrentItemKey()        {            return CurrentItem.SignalID;        }         /// <summary>        /// Gets the string based named identifier of the <see cref="PagedViewModelBase{T1, T2}.CurrentItem"/>.        /// </summary>        /// <returns>The string based named identifier of the <see cref="PagedViewModelBase{T1, T2}.CurrentItem"/>.</returns>        public override string GetCurrentItemName()        {            return CurrentItem.PointTag;        }         /// <summary>        /// Loads collection of <see cref="DataModelMeasurement"/> defined in the database.        /// </summary>        public override void Load()        {            Mouse.OverrideCursor = Cursors.Wait;            try            {                if (m_filterByInternal)                    m_measurements = DataModelMeasurement.Load(null, m_deviceID, true, m_includeInternal);                else                    m_measurements = MeasurementGroup.GetPossibleMeasurements(null, 0);                 ItemsSource = m_measurements;            }            catch (Exception ex)            {                if (ex.InnerException != null)                {                    Popup(ex.Message + Environment.NewLine + "Inner Exception: " + ex.InnerException.Message, "Load " + DataModelName + " Exception:", MessageBoxImage.Error);                    CommonFunctions.LogException(null, "Load " + DataModelName, ex.InnerException);                }                else                {                    Popup(ex.Message, "Load " + DataModelName + " Exception:", MessageBoxImage.Error);                    CommonFunctions.LogException(null, "Load " + DataModelName, ex);                }            }            finally            {                Mouse.OverrideCursor = null;            }        }         /// <summary>        /// Saves CurrentItem information into database.        /// </summary>        public override void Save()        {            //Don't do anything here. This view model is used in SelecteMeasurementUserControl and we do not need to save anything from here.        }         /// <summary>        /// Hanldes <see cref="SearchCommand"/>.        /// </summary>        /// <param name="paramter">string value to search for in measurement collection.</param>        public void Search(object paramter)        {            if (paramter != null && !string.IsNullOrEmpty(paramter.ToString()))            {                string searchText = paramter.ToString().ToLower();                ItemsSource = new ObservableCollection<DataModelMeasurement>                    (m_measurements.Where(m => m.PointTag.ToLower().Contains(searchText) ||                                            m.SignalReference.ToLower().Contains(searchText) ||                                            m.Description.ToNonNullString().ToLower().Contains(searchText) ||                                            m.DeviceAcronym.ToNonNullString().ToLower().Contains(searchText) ||                                            m.PhasorLabel.ToNonNullString().ToLower().Contains(searchText) ||                                            m.SignalName.ToNonNullString().ToLower().Contains(searchText) ||                                            m.SignalAcronym.ToNonNullString().ToLower().Contains(searchText) ||                                            m.CompanyName.ToNonNullString().ToLower().Contains(searchText) ||                                            m.CompanyAcronym.ToNonNullString().ToLower().Contains(searchText)                                            ));            }        }         /// <summary>        /// Handles <see cref="ShowAllCommand"/>.        /// </summary>        public void ShowAll()        {            ItemsSource = m_measurements;        }         #endregion    }}