//******************************************************************************************************//  ErrorLogViewModel.cs - Gbtc////  Copyright © 2012, 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://  ----------------------------------------------------------------------------------------------------//  3/26/2012 - prasanthgs//       Generated original version of source code.//  04/12/2012 - prasanthgs//       Reworked as per the comments of codeplex reviewers.//       Code Optimized.//  09/10/2012 - Aniket Salver//       Added paging technique and implemented sorting.//  12/20/2012 - Starlynn Danyelle Gilliam//       Modified Header.////****************************************************************************************************** using System;using System.Collections.Generic;using System.ComponentModel;using System.Linq;using System.Windows;using System.Windows.Input;using System.Windows.Threading;using GSF.TimeSeries.UI.Commands;using GSF.TimeSeries.UI.DataModels;using GSF.TimeSeries.UI.Modal; namespace GSF.TimeSeries.UI.ViewModels{    internal class ErrorLogViewModel : PagedViewModelBase<ErrorLog, int>    {        #region [ Members ]         //private ErrorMonitor m_exMonitor;          private Dispatcher m_dispatcher;        private RelayCommand m_showCommand;        //private string m_currentSortMemberPath;        //private ListSortDirection m_currentSortDirection;         #endregion         #region [ Constructor]                /// <summary>        /// Creates a new instance of <see cref="ErrorLogViewModel"/> class.        /// </summary>        /// <param name="itemsPerPage"> No of Maximum items in each page.</param>        /// <param name="autoSave">Default value true.</param>        public ErrorLogViewModel(int itemsPerPage, bool autoSave = true)            : base(itemsPerPage, autoSave)        {            m_dispatcher = Dispatcher.CurrentDispatcher;        }        #endregion         #region [ Properties ]         /// <summary>        /// Checks for new item in Error list.        /// Since this is an error viewer, no new records can be added.        /// Always returns false.        /// </summary>        public override bool IsNewRecord        {            get { return false; }        }         /// <summary>        /// Gets Show command.        /// </summary>        public ICommand ShowCommand        {            get            {                if (m_showCommand == null)                    m_showCommand = new RelayCommand(ShowErrorLog);                 return m_showCommand;            }        }         #endregion         #region [ Methods ]         /// <summary>        /// Initialization to be done before the initial call to <see cref="Load"/>.        /// </summary>        public override void Initialize()        {            base.Initialize();            SortMember = "ID";            SortDirection = "DESC";        }         /// <summary>        /// Sorts model data.        /// </summary>        /// <param name="sortMemberPath">Member path for sorting.</param>        /// <param name="sortDirection">Ascending or descending.</param>        public override void SortData(string sortMemberPath, ListSortDirection sortDirection)        {             SortMember = sortMemberPath;            SortDirection = (sortDirection == ListSortDirection.Descending) ? "DESC" : "ASC";            ItemsKeys = null;            Load();        }         /// <summary>        /// Show brief error log details.        /// </summary>        private void ShowErrorLog()        {            ErrorDetailDisplay logDisplay = new ErrorDetailDisplay(CurrentItem.Detail);            logDisplay.ShowDialog();        }         /// <summary>        /// Overriden method        /// </summary>        public override void Load()        {            List<int> pageKeys;             try            {                if ((object)ItemsKeys == null)                {                    ItemsKeys = ErrorLog.LoadKeys(null, SortMember, SortDirection);                     if ((object)SortSelector != null)                    {                        if (SortDirection == "ASC")                            ItemsKeys = ItemsKeys.OrderBy(SortSelector).ToList();                        else                            ItemsKeys = ItemsKeys.OrderByDescending(SortSelector).ToList();                    }                }                 pageKeys = ItemsKeys.Skip((CurrentPageNumber - 1) * ItemsPerPage).Take(ItemsPerPage).ToList();                ItemsSource = ErrorLog.Load(null, pageKeys);            }            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>        /// Overriden method        /// Use current item index as key for setting         /// error list selected item after refresh.        /// </summary>        /// <returns>Returns current item index.</returns>        public override int GetCurrentItemKey()        {            return CurrentItem.ID;        }         /// <summary>        /// Overriden method        /// Get current item index.        /// </summary>        /// <returns>Returns String representation of current index.</returns>        public override string GetCurrentItemName()        {            return CurrentItem.ID.ToString();        }         #endregion    }}