实例介绍
【实例简介】
【实例截图】
【核心代码】
//=============================================================================== // Microsoft patterns & practices // Smart Client Software Factory 2010 //=============================================================================== // Copyright (c) Microsoft Corporation. All rights reserved. // THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY // OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT // LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND // FITNESS FOR A PARTICULAR PURPOSE. //=============================================================================== // The example companies, organizations, products, domain names, // e-mail addresses, logos, people, places, and events depicted // herein are fictitious. No association with any real company, // organization, product, domain name, email address, logo, person, // places, or events is intended or should be inferred. //=============================================================================== using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using Microsoft.Practices.SmartClient.ConnectionMonitor; using Microsoft.Practices.SmartClient.ConnectionMonitor.Implementations; using System.Diagnostics; namespace QuickStarts.ConnectionMonitor { public partial class QuickStartForm : Form { public QuickStartForm() { InitializeComponent(); } private void QuickStartForm_Load(object sender, EventArgs e) { ConnectionMonitorFactory.CreateFromConfiguration(); LoadConnectionsAndNetworks(); validateAddNetwork(); } private void addConnectionButton_Click(object sender, EventArgs e) { string connectionName = connectionNameTextBox.Text; if (ConnectionMonitor.Connections.Contains(connectionName)) { MessageBox.Show(Properties.Resources.ConnectionAlreadyExists); return; } int price; if (int.TryParse(priceTextBox.Text, out price)) { Connection connection = QuickstartConnectionFactory.CreateConnection(connectionTypeDropDown.SelectedItem.ToString(), connectionName, price); ConnectionMonitor.Connections.Add(connection); LoadConnectionsAndNetworks(); } } private ListViewGroup NetworksGroup { get { return connectionsListView.Groups["networksListViewGroup"]; } } private ListViewGroup ConnectionsGroup { get { return connectionsListView.Groups["connectionsListViewGroup"]; } } private Microsoft.Practices.SmartClient.ConnectionMonitor.ConnectionMonitor ConnectionMonitor { get { return Microsoft.Practices.SmartClient.ConnectionMonitor.ConnectionMonitorFactory.Instance; } } private void LoadConnectionsAndNetworks() { foreach (ListViewItem item in connectionsListView.Items) { item.Remove(); } foreach (Connection connection in ConnectionMonitor.Connections) { ListViewItem item = new ConnectionListViewItem(connection, ConnectionsGroup); connectionsListView.Items.Add(item); } foreach (Network network in ConnectionMonitor.Networks) { ListViewItem item = new NetworkListViewItem(network, NetworksGroup); connectionsListView.Items.Add(item); } } private void networkAddButton_Click(object sender, EventArgs e) { string networkName = networkNameTextBox.Text; if (ConnectionMonitor.Networks.Contains(networkName)) { MessageBox.Show(Properties.Resources.NetworkAlreadyExists); return; } string networkAddress = networkAddresstextBox.Text; try { Uri address = new Uri(networkAddress); } catch(UriFormatException ex) { Debug.Assert(ex != null); MessageBox.Show(Properties.Resources.BadAddress); return; } Network network = new Network(networkName, networkAddress); ConnectionMonitor.Networks.Add(network); LoadConnectionsAndNetworks(); } private void contextMenuStrip1_Opening(object sender, CancelEventArgs e) { if (connectionsListView.SelectedItems.Count == 0 || !(connectionsListView.SelectedItems[0] is ConnectionListViewItem)) { e.Cancel = true; return; } ConnectionListViewItem item = (ConnectionListViewItem)connectionsListView.SelectedItems[0]; bool isDesktopConnection = item.Connection is DesktopConnection; disconnectToolStripMenuItem.Enabled = isDesktopConnection; connectToolStripMenuItem.Enabled = isDesktopConnection; } private void disconnectToolStripMenuItem_Click(object sender, EventArgs e) { DesktopConnection connection = ((ConnectionListViewItem)connectionsListView.SelectedItems[0]).Connection as DesktopConnection; if (connection != null) { connection.Disconnect(); } } private void connectToolStripMenuItem_Click(object sender, EventArgs e) { DesktopConnection connection = ((ConnectionListViewItem)connectionsListView.SelectedItems[0]).Connection as DesktopConnection; if (connection != null) { connection.Connect(); } } private void refreshButton_Click(object sender, EventArgs e) { LoadConnectionsAndNetworks(); } private void networkAddresstextBox_TextChanged(object sender, EventArgs e) { validateAddNetwork(); } private void validateAddNetwork() { networkAddButton.Enabled = !string.IsNullOrEmpty(networkNameTextBox.Text) && !string.IsNullOrEmpty(networkAddresstextBox.Text); } private void networkNameTextBox_TextChanged(object sender, EventArgs e) { validateAddNetwork(); } class ConnectionListViewItem : ListViewItem { Connection _connection; EventHandler<StateChangedEventArgs> _connectionStateChangedHandler; public ConnectionListViewItem(Connection connection, ListViewGroup group) : base(group) { _connection = connection; _connectionStateChangedHandler = _connection_StateChanged; _connection.StateChanged = _connectionStateChangedHandler; UpdateLook(); } private void _connection_StateChanged(object sender, StateChangedEventArgs e) { if (ListView.InvokeRequired) { ListView.Invoke(_connectionStateChangedHandler, sender, e); } else { UpdateLook(); } } private void UpdateLook() { string status = _connection.IsConnected ? "Connected" : "Disconnected"; Text = String.Format(Properties.Resources.ConnectionDescription, _connection.ConnectionTypeName, status); ToolTipText = _connection.GetDetailedInfoString(); ImageKey = String.Format("connection{0}", status); } public Connection Connection { get { return _connection; } } public override void Remove() { _connection.StateChanged -= _connectionStateChangedHandler; base.Remove(); } } class NetworkListViewItem : ListViewItem { Network _network; EventHandler<StateChangedEventArgs> _networkStateChangedHandler; public NetworkListViewItem(Network network, ListViewGroup group) : base(group) { _network = network; _networkStateChangedHandler = new EventHandler<StateChangedEventArgs>(_network_StateChanged); _network.StateChanged = _networkStateChangedHandler; UpdateLook(); } private void _network_StateChanged(object sender, StateChangedEventArgs e) { if (ListView.InvokeRequired) { ListView.Invoke(_networkStateChangedHandler, sender, e); } else { UpdateLook(); } } private void UpdateLook() { string status = _network.Connected ? "Connected" : "Disconnected"; Text = String.Format(Properties.Resources.NetworkDescription, _network.Name, status); ImageKey = String.Format("network{0}", status); ToolTipText = String.Format(Properties.Resources.NetworkDetails, _network.Address); } public Network Network { get { return _network; } } public override void Remove() { _network.StateChanged -= _networkStateChangedHandler; base.Remove(); } } } }
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