Measure Bandwidh network in C #

Question

For my application, I want to show the network bandwidth to the user. Thus, the receipt of a delay for the download will be known to the user. Is it possible to show them?

Answer 1

Try the following: How to calculate network bandwidth speed in C # .

using System; using System.Net.NetworkInformation; using System.Windows.Forms; namespace InterfaceTrafficWatch { /// <summary> /// Network Interface Traffic Watch /// by Mohamed Mansour /// /// Free to use under GPL open source license! /// </summary> public partial class MainForm : Form { /// <summary> /// Timer Update (every 1 sec) /// </summary> private const double timerUpdate = 1000; /// <summary> /// Interface Storage /// </summary> private NetworkInterface[] nicArr; /// <summary> /// Main Timer Object /// (we could use something more efficient such /// as interop calls to HighPerformanceTimers) /// </summary> private Timer timer; /// <summary> /// Constructor /// </summary> public MainForm() { InitializeComponent(); InitializeNetworkInterface(); InitializeTimer(); } /// <summary> /// Initialize all network interfaces on this computer /// </summary> private void InitializeNetworkInterface() { // Grab all local interfaces to this computer nicArr = NetworkInterface.GetAllNetworkInterfaces(); // Add each interface name to the combo box for (int i = 0; i < nicArr.Length; i++) cmbInterface.Items.Add(nicArr[i].Name); // Change the initial selection to the first interface cmbInterface.SelectedIndex = 0; } /// <summary> /// Initialize the Timer /// </summary> private void InitializeTimer() { timer = new Timer(); timer.Interval = (int)timerUpdate; timer.Tick += new EventHandler(timer_Tick); timer.Start(); } /// <summary> /// Update GUI components for the network interfaces /// </summary> private void UpdateNetworkInterface() { // Grab NetworkInterface object that describes the current interface NetworkInterface nic = nicArr[cmbInterface.SelectedIndex]; // Grab the stats for that interface IPv4InterfaceStatistics interfaceStats = nic.GetIPv4Statistics(); // Calculate the speed of bytes going in and out // NOTE: we could use something faster and more reliable than Windows Forms Tiemr // such as HighPerformanceTimer http://www.m0interactive.com/archives/2006/12/21/high_resolution_timer_in_net_2_0.html int bytesSentSpeed = (int)(interfaceStats.BytesSent - double.Parse(lblBytesSent.Text)) / 1024; int bytesReceivedSpeed = (int)(interfaceStats.BytesReceived - double.Parse(lblBytesReceived.Text)) / 1024; // Update the labels lblSpeed.Text = nic.Speed.ToString(); lblInterfaceType.Text = nic.NetworkInterfaceType.ToString(); lblSpeed.Text = nic.Speed.ToString(); lblBytesReceived.Text = interfaceStats.BytesReceived.ToString(); lblBytesSent.Text = interfaceStats.BytesSent.ToString(); lblUpload.Text = bytesSentSpeed.ToString() + " KB/s"; lblDownload.Text = bytesReceivedSpeed.ToString() + " KB/s"; } /// <summary> /// The Timer event for each Tick (second) to update the UI /// </summary> /// <param name="sender"></param> /// <param name="e"></param> void timer_Tick(object sender, EventArgs e) { UpdateNetworkInterface(); } } } 

Answer 2

If you load through a stream, then what you can do is make a kind of “meter” that inherits from the stream and provides a property that sums the bytes read or written to it under the stream object. Ask the meter to encapsulate the stream object that you use to load, and then read it from the counter object. then ever so often you can check the number of bytes read in time to calculate the bandwidth consumed.