代码如下：
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using Echevil;
namespace Network_Monitor_Sample
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class FormMain : System.Windows.Forms.Form
{
private System.Windows.Forms.Label LabelDownload;
private System.Windows.Forms.Label LabelUpload;
private System.Windows.Forms.Label LableDownloadValue;
private System.Windows.Forms.Label LabelUploadValue;
private System.Windows.Forms.ListBox ListAdapters;
private System.Windows.Forms.Timer TimerCounter;
private System.ComponentModel.IContainer components;
public FormMain()
{
InitializeComponent();
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
this.ListAdapters = new System.Windows.Forms.ListBox();
this.LabelDownload = new System.Windows.Forms.Label();
this.LabelUpload = new System.Windows.Forms.Label();
this.LableDownloadValue = new System.Windows.Forms.Label();
this.LabelUploadValue = new System.Windows.Forms.Label();
this.TimerCounter = new System.Windows.Forms.Timer(this.components);
this.SuspendLayout();
//
// ListAdapters
//
this.ListAdapters.ItemHeight = 12;
this.ListAdapters.Location = new System.Drawing.Point(19, 26);
this.ListAdapters.Name = "ListAdapters";
this.ListAdapters.Size = new System.Drawing.Size(250, 76);
this.ListAdapters.TabIndex = 0;
this.ListAdapters.SelectedIndexChanged += new System.EventHandler(this.ListAdapters_SelectedIndexChanged);
//
// LabelDownload
//
this.LabelDownload.Location = new System.Drawing.Point(272, 26);
this.LabelDownload.Name = "LabelDownload";
this.LabelDownload.Size = new System.Drawing.Size(120, 25);
this.LabelDownload.TabIndex = 1;
this.LabelDownload.Text = "Download Speed：";
this.LabelDownload.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
//
// LabelUpload
//
this.LabelUpload.Location = new System.Drawing.Point(272, 77);
this.LabelUpload.Name = "LabelUpload";
this.LabelUpload.Size = new System.Drawing.Size(120, 25);
this.LabelUpload.TabIndex = 2;
this.LabelUpload.Text = "Upload Speed：";
this.LabelUpload.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
//
// LableDownloadValue
//
this.LableDownloadValue.Location = new System.Drawing.Point(388, 26);
this.LableDownloadValue.Name = "LableDownloadValue";
this.LableDownloadValue.Size = new System.Drawing.Size(120, 25);
this.LableDownloadValue.TabIndex = 3;
this.LableDownloadValue.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
//
// LabelUploadValue
//
this.LabelUploadValue.Location = new System.Drawing.Point(388, 78);
this.LabelUploadValue.Name = "LabelUploadValue";
this.LabelUploadValue.Size = new System.Drawing.Size(120, 25);
this.LabelUploadValue.TabIndex = 4;
this.LabelUploadValue.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
//
// TimerCounter
//
this.TimerCounter.Interval = 1000;
this.TimerCounter.Tick += new System.EventHandler(this.TimerCounter_Tick);
//
// FormMain
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(520, 134);
this.Controls.Add(this.LabelUploadValue);
this.Controls.Add(this.LableDownloadValue);
this.Controls.Add(this.LabelUpload);
this.Controls.Add(this.LabelDownload);
this.Controls.Add(this.ListAdapters);
this.Name = "FormMain";
this.Text = "实时显示上传下载速率";
this.Load += new System.EventHandler(this.FormMain_Load);
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.Run(new FormMain());
}
private NetworkAdapter[] adapters;
private NetworkMonitor monitor;
private void FormMain_Load(object sender, System.EventArgs e)
{
monitor = new NetworkMonitor();
this.adapters = monitor.Adapters;
if(adapters.Length == 0)
{
this.ListAdapters.Enabled = false;
MessageBox.Show("No network adapters found on this computer.");
return;
}
this.ListAdapters.Items.AddRange(this.adapters);
}
private void ListAdapters_SelectedIndexChanged(object sender, System.EventArgs e)
{
monitor.StopMonitoring();
monitor.StartMonitoring(adapters[this.ListAdapters.SelectedIndex]);
this.TimerCounter.Start();
}
private void TimerCounter_Tick(object sender, System.EventArgs e)
{
NetworkAdapter adapter = this.adapters[this.ListAdapters.SelectedIndex];
this.LableDownloadValue.Text = String.Format("{0:n} kbps",adapter.DownloadSpeedKbps);
this.LabelUploadValue.Text = String.Format("{0:n} kbps",adapter.UploadSpeedKbps);
}
}
}
如图：
