我需要一种方法来获取当前系统网络的使用情况。
我在网上找到了一些，但他们没有为我工作。
感谢您的帮助
代码段：
private void timerPerf_Tick(object sender, EventArgs e)
{
if (!NetworkInterface.GetIsNetworkAvailable())
return;
NetworkInterface[] interfaces
= NetworkInterface.GetAllNetworkInterfaces();
foreach (NetworkInterface ni in interfaces)
{
this.labelnetup.Text = " Bytes Sent: " + ni.GetIPv4Statistics().BytesSent;
this.labelnetdown.Text = " Bytes Rec: " + ni.GetIPv4Statistics().BytesReceived;
}
}
答案 0 :(得分：24)
请参阅Report information from NetworkInterface: network statistics了解一个好的示例程序：
using System;
using System.Net.NetworkInformation;
class MainClass
{
static void Main()
{
if (!NetworkInterface.GetIsNetworkAvailable())
return;
NetworkInterface[] interfaces
= NetworkInterface.GetAllNetworkInterfaces();
foreach (NetworkInterface ni in interfaces)
{
Console.WriteLine(" Bytes Sent: {0}",
ni.GetIPv4Statistics().BytesSent);
Console.WriteLine(" Bytes Received: {0}",
ni.GetIPv4Statistics().BytesReceived);
}
}
}
答案 1 :(得分：4)
您也可以通过使用PerformanceCounterCategory来获取当前系统的网络使用情况：
using System;
using System.Diagnostics;
class Program
{
static void Main()
{
PerformanceCounterCategory pcg = new PerformanceCounterCategory("Network Interface");
string instance = pcg.GetInstanceNames()[0];
PerformanceCounter pcsent = new PerformanceCounter("Network Interface", "Bytes Sent/sec", instance);
PerformanceCounter pcreceived = new PerformanceCounter("Network Interface", "Bytes Received/sec", instance);
Console.WriteLine("Bytes Sent: {0}", pcsent.NextValue() / 1024);
Console.WriteLine("Bytes Received: {0}", pcreceived.NextValue() / 1024);
}
}
来源：http://dotnet-snippets.com/snippet/show-network-traffic-sent-and-received/580
答案 2 :(得分：1)
以下是带有计时器的Windows窗体的代码。
Imports System.Net.NetworkInformation
Imports System.Windows.Forms
Namespace InterfaceTrafficWatch
''' <summary>
''' Network Interface Traffic Watch
''' by Mohamed Mansour
'''
''' Free to use under GPL open source license!
''' </summary>
Partial Public Class MainForm
Inherits Form
''' <summary>
''' Timer Update (every 1 sec)
''' </summary>
Private Const timerUpdate As Double = 1000
''' <summary>
''' Interface Storage
''' </summary>
Private nicArr As NetworkInterface()
''' <summary>
''' Main Timer Object
''' (we could use something more efficient such
''' as interop calls to HighPerformanceTimers)
''' </summary>
Private timer As Timer
''' <summary>
''' Constructor
''' </summary>
Public Sub New()
InitializeComponent()
InitializeNetworkInterface()
InitializeTimer()
End Sub
''' <summary>
''' Initialize all network interfaces on this computer
''' </summary>
Private Sub InitializeNetworkInterface()
' Grab all local interfaces to this computer
nicArr = NetworkInterface.GetAllNetworkInterfaces()
' Add each interface name to the combo box
For i As Integer = 0 To nicArr.Length - 1
cmbInterface.Items.Add(nicArr(i).Name)
Next
' Change the initial selection to the first interface
cmbInterface.SelectedIndex = 0
End Sub
''' <summary>
''' Initialize the Timer
''' </summary>
Private Sub InitializeTimer()
timer = New Timer()
timer.Interval = CInt(timerUpdate)
AddHandler timer.Tick, New EventHandler(AddressOf timer_Tick)
'timer.Tick += New EventHandler(AddressOf timer_Tick)
timer.Start()
End Sub
''' <summary>
''' Update GUI components for the network interfaces
''' </summary>
Private Sub UpdateNetworkInterface()
' Grab NetworkInterface object that describes the current interface
Dim nic As NetworkInterface = nicArr(cmbInterface.SelectedIndex)
' Grab the stats for that interface
Dim interfaceStats As IPv4InterfaceStatistics = nic.GetIPv4Statistics()
Dim BS As Double = CDbl(lblBytesSent.Text) * 1024 * 1024
Dim bytesSentSpeed As Double = (interfaceStats.BytesSent - BS) / 1024
Dim BR As Double = CDbl(lblBytesReceived.Text) * 1024 * 1024
Dim bytesReceivedSpeed As Double = (interfaceStats.BytesReceived - BR) / 1024
' Update the labels
lblSpeed.Text = CInt(((nic.Speed) / 1024) / 1024).ToString() + " Mbs"
lblInterfaceType.Text = nic.NetworkInterfaceType.ToString()
'lblSpeed.Text = nic.Speed.ToString()
lblBytesReceived.Text = ((CInt(interfaceStats.BytesReceived / 1024) / 1024)).ToString()
lblBytesSent.Text = ((CInt(interfaceStats.BytesSent.ToString() / 1024) / 1024)).ToString()
lblTimeStamp.Text = Date.Now().ToString()
lblDescription.Text = nic.Description.ToString()
lblPhyAddorMAC.Text = nic.GetPhysicalAddress().ToString()
lblName.Text = nic.Name.ToString()
lblIPStatistics.Text = nic.Id.ToString()
lblUpload.Text = bytesSentSpeed.ToString() + " KB/s"
lblDownload.Text = bytesReceivedSpeed.ToString() + " KB/s"
End Sub
''' <summary>
''' The Timer event for each Tick (second) to update the UI
''' </summary>
''' <param name="sender"></param>
''' <param name="e"></param>
Private Sub timer_Tick(sender As Object, e As EventArgs)
UpdateNetworkInterface()
End Sub
Friend WithEvents cmbInterface As System.Windows.Forms.ComboBox
Friend WithEvents lblSpeed As System.Windows.Forms.Label
Friend WithEvents lblInterfaceType As System.Windows.Forms.Label
Friend WithEvents lblBytesReceived As System.Windows.Forms.Label
Friend WithEvents lblBytesSent As System.Windows.Forms.Label
Friend WithEvents lblUpload As System.Windows.Forms.Label
Friend WithEvents Timer1 As System.Windows.Forms.Timer
Private components As System.ComponentModel.IContainer
Private Sub InitializeComponent()
Me.components = New System.ComponentModel.Container()
Me.cmbInterface = New System.Windows.Forms.ComboBox()
Me.lblSpeed = New System.Windows.Forms.Label()
Me.lblInterfaceType = New System.Windows.Forms.Label()
Me.lblBytesReceived = New System.Windows.Forms.Label()
Me.lblBytesSent = New System.Windows.Forms.Label()
Me.lblUpload = New System.Windows.Forms.Label()
Me.Timer1 = New System.Windows.Forms.Timer(Me.components)
Me.lblDownload = New System.Windows.Forms.Label()
Me.Label1 = New System.Windows.Forms.Label()
Me.Label2 = New System.Windows.Forms.Label()
Me.Label3 = New System.Windows.Forms.Label()
Me.Label4 = New System.Windows.Forms.Label()
Me.Label5 = New System.Windows.Forms.Label()
Me.Label6 = New System.Windows.Forms.Label()
Me.lblTimeStamp = New System.Windows.Forms.Label()
Me.Label8 = New System.Windows.Forms.Label()
Me.lblDescription = New System.Windows.Forms.Label()
Me.Label9 = New System.Windows.Forms.Label()
Me.lblPhyAddorMAC = New System.Windows.Forms.Label()
Me.Label10 = New System.Windows.Forms.Label()
Me.lblName = New System.Windows.Forms.Label()
Me.Label11 = New System.Windows.Forms.Label()
Me.lblIPStatistics = New System.Windows.Forms.Label()
Me.Label13 = New System.Windows.Forms.Label()
Me.Label7 = New System.Windows.Forms.Label()
Me.Label12 = New System.Windows.Forms.Label()
Me.Label14 = New System.Windows.Forms.Label()
Me.SuspendLayout()
'
'cmbInterface
'
Me.cmbInterface.FormattingEnabled = True
Me.cmbInterface.Location = New System.Drawing.Point(139, 24)
Me.cmbInterface.Name = "cmbInterface"
Me.cmbInterface.Size = New System.Drawing.Size(232, 21)
Me.cmbInterface.TabIndex = 0
'
'lblSpeed
'
Me.lblSpeed.AutoSize = True
Me.lblSpeed.Location = New System.Drawing.Point(136, 60)
Me.lblSpeed.Name = "lblSpeed"
Me.lblSpeed.Size = New System.Drawing.Size(13, 13)
Me.lblSpeed.TabIndex = 1
Me.lblSpeed.Text = "0"
'
'lblInterfaceType
'
Me.lblInterfaceType.AutoSize = True
Me.lblInterfaceType.Location = New System.Drawing.Point(136, 84)
Me.lblInterfaceType.Name = "lblInterfaceType"
Me.lblInterfaceType.Size = New System.Drawing.Size(13, 13)
Me.lblInterfaceType.TabIndex = 1
Me.lblInterfaceType.Text = "0"
'
'lblBytesReceived
'
Me.lblBytesReceived.AutoSize = True
Me.lblBytesReceived.Location = New System.Drawing.Point(136, 112)
Me.lblBytesReceived.Name = "lblBytesReceived"
Me.lblBytesReceived.Size = New System.Drawing.Size(13, 13)
Me.lblBytesReceived.TabIndex = 1
Me.lblBytesReceived.Text = "0"
'
'lblBytesSent
'
Me.lblBytesSent.AutoSize = True
Me.lblBytesSent.Location = New System.Drawing.Point(136, 142)
Me.lblBytesSent.Name = "lblBytesSent"
Me.lblBytesSent.Size = New System.Drawing.Size(13, 13)
Me.lblBytesSent.TabIndex = 1
Me.lblBytesSent.Text = "0"
'
'lblUpload
'
Me.lblUpload.AutoSize = True
Me.lblUpload.Location = New System.Drawing.Point(136, 175)
Me.lblUpload.Name = "lblUpload"
Me.lblUpload.Size = New System.Drawing.Size(13, 13)
Me.lblUpload.TabIndex = 1
Me.lblUpload.Text = "0"
'
'lblDownload
'
Me.lblDownload.AutoSize = True
Me.lblDownload.Location = New System.Drawing.Point(136, 202)
Me.lblDownload.Name = "lblDownload"
Me.lblDownload.Size = New System.Drawing.Size(13, 13)
Me.lblDownload.TabIndex = 1
Me.lblDownload.Text = "0"
'
'Label1
'
Me.Label1.AutoSize = True
Me.Label1.Location = New System.Drawing.Point(12, 60)
Me.Label1.Name = "Label1"
Me.Label1.Size = New System.Drawing.Size(38, 13)
Me.Label1.TabIndex = 1
Me.Label1.Text = "Speed"
'
'Label2
'
Me.Label2.AutoSize = True
Me.Label2.Location = New System.Drawing.Point(12, 84)
Me.Label2.Name = "Label2"
Me.Label2.Size = New System.Drawing.Size(73, 13)
Me.Label2.TabIndex = 1
Me.Label2.Text = "InterfaceType"
'
'Label3
'
Me.Label3.AutoSize = True
Me.Label3.Location = New System.Drawing.Point(12, 112)
Me.Label3.Name = "Label3"
Me.Label3.Size = New System.Drawing.Size(82, 13)
Me.Label3.TabIndex = 1
Me.Label3.Text = "Bytes Received"
'
'Label4
'
Me.Label4.AutoSize = True
Me.Label4.Location = New System.Drawing.Point(12, 142)
Me.Label4.Name = "Label4"
Me.Label4.Size = New System.Drawing.Size(58, 13)
Me.Label4.TabIndex = 1
Me.Label4.Text = "Bytes Sent"
'
'Label5
'
Me.Label5.AutoSize = True
Me.Label5.Location = New System.Drawing.Point(12, 175)
Me.Label5.Name = "Label5"
Me.Label5.Size = New System.Drawing.Size(73, 13)
Me.Label5.TabIndex = 1
Me.Label5.Text = "Upload speed"
'
'Label6
'
Me.Label6.AutoSize = True
Me.Label6.Location = New System.Drawing.Point(12, 202)
Me.Label6.Name = "Label6"
Me.Label6.Size = New System.Drawing.Size(87, 13)
Me.Label6.TabIndex = 1
Me.Label6.Text = "Download speed"
'
'lblTimeStamp
'
Me.lblTimeStamp.AutoSize = True
Me.lblTimeStamp.Location = New System.Drawing.Point(116, 369)
Me.lblTimeStamp.Name = "lblTimeStamp"
Me.lblTimeStamp.Size = New System.Drawing.Size(13, 13)
Me.lblTimeStamp.TabIndex = 1
Me.lblTimeStamp.Text = "0"
'
'Label8
'
Me.Label8.AutoSize = True
Me.Label8.Location = New System.Drawing.Point(17, 369)
Me.Label8.Name = "Label8"
Me.Label8.Size = New System.Drawing.Size(60, 13)
Me.Label8.TabIndex = 1
Me.Label8.Text = "TimeStamp"
'
'lblDescription
'
Me.lblDescription.AutoSize = True
Me.lblDescription.Location = New System.Drawing.Point(136, 232)
Me.lblDescription.Name = "lblDescription"
Me.lblDescription.Size = New System.Drawing.Size(13, 13)
Me.lblDescription.TabIndex = 1
Me.lblDescription.Text = "0"
'
'Label9
'
Me.Label9.AutoSize = True
Me.Label9.Location = New System.Drawing.Point(12, 232)
Me.Label9.Name = "Label9"
Me.Label9.Size = New System.Drawing.Size(60, 13)
Me.Label9.TabIndex = 1
Me.Label9.Text = "Description"
'
'lblPhyAddorMAC
'
Me.lblPhyAddorMAC.AutoSize = True
Me.lblPhyAddorMAC.Location = New System.Drawing.Point(136, 259)
Me.lblPhyAddorMAC.Name = "lblPhyAddorMAC"
Me.lblPhyAddorMAC.Size = New System.Drawing.Size(13, 13)
Me.lblPhyAddorMAC.TabIndex = 1
Me.lblPhyAddorMAC.Text = "0"
'
'Label10
'
Me.Label10.AutoSize = True
Me.Label10.Location = New System.Drawing.Point(12, 259)
Me.Label10.Name = "Label10"
Me.Label10.Size = New System.Drawing.Size(82, 13)
Me.Label10.TabIndex = 1
Me.Label10.Text = "PhyAdd or MAC"
'
'lblName
'
Me.lblName.AutoSize = True
Me.lblName.Location = New System.Drawing.Point(136, 288)
Me.lblName.Name = "lblName"
Me.lblName.Size = New System.Drawing.Size(13, 13)
Me.lblName.TabIndex = 1
Me.lblName.Text = "0"
'
'Label11
'
Me.Label11.AutoSize = True
Me.Label11.Location = New System.Drawing.Point(12, 288)
Me.Label11.Name = "Label11"
Me.Label11.Size = New System.Drawing.Size(35, 13)
Me.Label11.TabIndex = 1
Me.Label11.Text = "Name"
'
'lblIPStatistics
'
Me.lblIPStatistics.AutoSize = True
Me.lblIPStatistics.Location = New System.Drawing.Point(136, 312)
Me.lblIPStatistics.Name = "lblIPStatistics"
Me.lblIPStatistics.Size = New System.Drawing.Size(13, 13)
Me.lblIPStatistics.TabIndex = 1
Me.lblIPStatistics.Text = "0"
'
'Label13
'
Me.Label13.AutoSize = True
Me.Label13.Location = New System.Drawing.Point(12, 312)
Me.Label13.Name = "Label13"
Me.Label13.Size = New System.Drawing.Size(39, 13)
Me.Label13.TabIndex = 1
Me.Label13.Text = "NIC ID"
'
'Label7
'
Me.Label7.AutoSize = True
Me.Label7.Location = New System.Drawing.Point(9, 32)
Me.Label7.Name = "Label7"
Me.Label7.Size = New System.Drawing.Size(30, 13)
Me.Label7.TabIndex = 1
Me.Label7.Text = "NICs"
'
'Label12
'
Me.Label12.AutoSize = True
Me.Label12.Location = New System.Drawing.Point(321, 112)
Me.Label12.Name = "Label12"
Me.Label12.Size = New System.Drawing.Size(23, 13)
Me.Label12.TabIndex = 1
Me.Label12.Text = "MB"
'
'Label14
'
Me.Label14.AutoSize = True
Me.Label14.Location = New System.Drawing.Point(321, 142)
Me.Label14.Name = "Label14"
Me.Label14.Size = New System.Drawing.Size(23, 13)
Me.Label14.TabIndex = 1
Me.Label14.Text = "MB"
'
'MainForm
'
Me.ClientSize = New System.Drawing.Size(660, 422)
Me.Controls.Add(Me.Label13)
Me.Controls.Add(Me.lblIPStatistics)
Me.Controls.Add(Me.Label11)
Me.Controls.Add(Me.lblName)
Me.Controls.Add(Me.Label10)
Me.Controls.Add(Me.lblPhyAddorMAC)
Me.Controls.Add(Me.Label9)
Me.Controls.Add(Me.lblDescription)
Me.Controls.Add(Me.Label8)
Me.Controls.Add(Me.lblTimeStamp)
Me.Controls.Add(Me.Label6)
Me.Controls.Add(Me.lblDownload)
Me.Controls.Add(Me.Label5)
Me.Controls.Add(Me.lblUpload)
Me.Controls.Add(Me.Label4)
Me.Controls.Add(Me.lblBytesSent)
Me.Controls.Add(Me.Label3)
Me.Controls.Add(Me.Label2)
Me.Controls.Add(Me.Label14)
Me.Controls.Add(Me.Label12)
Me.Controls.Add(Me.lblBytesReceived)
Me.Controls.Add(Me.Label7)
Me.Controls.Add(Me.Label1)
Me.Controls.Add(Me.lblInterfaceType)
Me.Controls.Add(Me.lblSpeed)
Me.Controls.Add(Me.cmbInterface)
Me.Name = "MainForm"
Me.Text = "Band Width Statistics"
Me.ResumeLayout(False)
Me.PerformLayout()
End Sub
Friend WithEvents lblDownload As System.Windows.Forms.Label
Friend WithEvents Label1 As System.Windows.Forms.Label
Friend WithEvents Label2 As System.Windows.Forms.Label
Friend WithEvents Label3 As System.Windows.Forms.Label
Friend WithEvents Label4 As System.Windows.Forms.Label
Friend WithEvents Label5 As System.Windows.Forms.Label
Friend WithEvents Label6 As System.Windows.Forms.Label
Friend WithEvents lblTimeStamp As System.Windows.Forms.Label
Friend WithEvents Label8 As System.Windows.Forms.Label
Friend WithEvents lblDescription As System.Windows.Forms.Label
Friend WithEvents Label9 As System.Windows.Forms.Label
Friend WithEvents lblPhyAddorMAC As System.Windows.Forms.Label
Friend WithEvents Label10 As System.Windows.Forms.Label
Friend WithEvents lblName As System.Windows.Forms.Label
Friend WithEvents Label11 As System.Windows.Forms.Label
Friend WithEvents lblIPStatistics As System.Windows.Forms.Label
Friend WithEvents Label13 As System.Windows.Forms.Label
Friend WithEvents Label7 As System.Windows.Forms.Label
Friend WithEvents Label12 As System.Windows.Forms.Label
Friend WithEvents Label14 As System.Windows.Forms.Label
End Class
End Namespace