//******************************************************************************************************//  DeviceListUserControl.xaml.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://  ----------------------------------------------------------------------------------------------------//  05/09/2011 - Mehulbhai P Thakkar//       Generated original version of source code.//  09/14/2012 - Aniket Salver //          Added paging and sorting technique. ////****************************************************************************************************** using System;using System.ComponentModel;using System.Windows;using System.Windows.Controls;using System.Windows.Input;using GSF.PhasorProtocols.UI.ViewModels; namespace GSF.PhasorProtocols.UI.UserControls{    /// <summary>    /// Interaction logic for DeviceListUserControl.xaml    /// </summary>    public partial class DeviceListUserControl : UserControl    {        #region [ Members ]         private bool m_committing;        private Devices m_dataContext;        private DataGridColumn m_sortColumn;        private string m_sortMemberPath;        private ListSortDirection m_sortDirection;         #endregion         #region [ Constructor ]         /// <summary>        /// Creates an instance of <see cref="DeviceListUserControl"/> class.        /// </summary>        public DeviceListUserControl()        {            InitializeComponent();            this.Loaded += DeviceListUserControl_Loaded;                   }         #endregion         #region [ Methods ]         private void DeviceListUserControl_Loaded(object sender, RoutedEventArgs e)        {            m_dataContext = new Devices(16);            this.DataContext = m_dataContext;            m_dataContext.PropertyChanged += ViewModel_PropertyChanged;        }         /// <summary>        /// Handles PreviewKeyDown event on the datagrid.        /// </summary>        /// <param name="sender">Source of the event.</param>        /// <param name="e">Arguments for the event.</param>        private void DataGrid_PreviewKeyDown(object sender, KeyEventArgs e)        {            if (e.Key == Key.Delete)            {                DataGrid dataGrid = sender as DataGrid;                if (dataGrid.SelectedItems.Count > 0)                {                    if (MessageBox.Show("Are you sure you want to delete " + dataGrid.SelectedItems.Count + " selected item(s)?", "Delete Selected Items", MessageBoxButton.YesNo) == MessageBoxResult.No)                        e.Handled = true;                }            }        }         private void DataGrid_CellEditEnding(object sender, DataGridCellEditEndingEventArgs e)        {            if (!m_committing && e.EditAction == DataGridEditAction.Commit)            {                m_committing = true;                DataGridList.CommitEdit(DataGridEditingUnit.Row, true);                m_dataContext.ProcessPropertyChange();                m_committing = false;            }        }         private void DataGridEnabledCheckBox_Click(object sender, RoutedEventArgs e)        {            m_dataContext.ProcessPropertyChange();        }         private void DataGrid_Sorting(object sender, DataGridSortingEventArgs e)        {            if (e.Column.SortMemberPath != m_sortMemberPath)                m_sortDirection = ListSortDirection.Ascending;            else if (m_sortDirection == ListSortDirection.Ascending)                m_sortDirection = ListSortDirection.Descending;            else                m_sortDirection = ListSortDirection.Ascending;             m_sortColumn = e.Column;            m_sortMemberPath = e.Column.SortMemberPath;            m_dataContext.SortData(m_sortMemberPath, m_sortDirection);        }         private void ViewModel_PropertyChanged(object sender, PropertyChangedEventArgs e)        {            if (e.PropertyName == "ItemsSource")                Dispatcher.BeginInvoke(new Action(SortDataGrid));        }         private void SortDataGrid()        {            if ((object)m_sortColumn != null)            {                m_sortColumn.SortDirection = m_sortDirection;                DataGridList.Items.SortDescriptions.Clear();                DataGridList.Items.SortDescriptions.Add(new SortDescription(m_sortMemberPath, m_sortDirection));                DataGridList.Items.Refresh();            }        }         #endregion    }}