Network Devices

[Rajkiran R.B.]

Is there a way to enable and disable a network card Present in my computer..

Thanks
Rajkiran

 

[Michael Rubinstein]

Rajkiran, you could launch ipconfig.exe via System.Diagnostics.Process
class. The easy way is using the Form Designer - dropping a Toolbox Process
icon onto a form and setting up process properties and the Exit event (you
may want to know when the process finished). The generated code would look
like this:

private System.Diagnostics.Process process1;

this.process1 = new System.Diagnostics.Process();

this.process1.EnableRaisingEvents = true;

this.process1.StartInfo.CreateNoWindow = true;

this.process1.StartInfo.Domain = "";

this.process1.StartInfo.FileName = "ipconfig.exe";

this.process1.StartInfo.LoadUserProfile = false;

this.process1.StartInfo.Password = null;

this.process1.StartInfo.RedirectStandardOutput = true;

this.process1.StartInfo.StandardErrorEncoding = null;

this.process1.StartInfo.StandardOutputEncoding = null;

this.process1.StartInfo.UserName = "";

this.process1.StartInfo.UseShellExecute = false;

this.process1.SynchronizingObject = this;

this.process1.Exited += new System.EventHandler(this.OnProcessExited);

//add code for Exited EventHandler

private void OnProcessExited(object sender, EventArgs e)

{

process1.Close();

//add code for visual feedback

}

to disable Network Interfaces place a call



private void ReleaseNetworkInterfaces()

{

process1.StartInfo.Arguments = "/release";

process1.Start();

}

to restore:

private void RenewNetworkInterfaces()

{

process1.StartInfo.Arguments = "/renew";

process1.Start();

}

I am not sure this is the best way, but it certainly works. You could take
it a step further and add events notifying when the network connection is
restored (IPAddress acquired).



Michael