C # ping

First, add the textbox, listbox, And button controls. Enter the domain name or IP address for textbox, and display the result for listbox.

Type

Private void button#click (object sender, EventArgs e)

{

Ping p1 = new Ping (); // only demo, no error handling

PingReply reply = p1.Send (this. textBox1.Text); // blocked displayReply (reply); // display result} private void displayReply (PingReply reply) // display result

{

StringBuilder sbuilder;

If (reply. Status = IPStatus. Success)

{

Sbuilder = new StringBuilder ();

Sbuilder. Append (string. Format ("Address: {0}", reply. Address. ToString ()));

Sbuilder. Append (string. Format ("RoundTrip time: {0}", reply. RoundtripTime ));

Sbuilder. Append (string. Format ("Time to live: {0}", reply. Options. Ttl ));

Sbuilder. Append (string. Format ("Don't fragment: {0}", reply. Options. DontFragment ));

Sbuilder. Append (string. Format ("Buffer size: {0}", reply. Buffer. Length ));

ListBox1.Items. Add (sbuilder. ToString ());

}

}

You can also perform asynchronous processing, modify the button#click, and add the PingCompletedCallBack method.

Private void button#click (object sender, EventArgs e)

{

Ping p1 = new Ping ();

P1.PingCompleted + = new PingCompletedEventHandler (this. PingCompletedCallBack); // set the PingCompleted event handler

P1.SendAsync (this. textBox1.Text, null );

}

Private void PingCompletedCallBack (object sender, PingCompletedEventArgs e)

{

If (e. Cancelled)

{

ListBox1.Items. Add ("Ping Canncel ");

Return;

}

If (e. Error! = Null)

{

ListBox1.Items. Add (e. Error. Message );

Return;

}

StringBuilder sbuilder;

PingReply reply = e. Reply;

If (reply. Status = IPStatus. Success)

{

Sbuilder = new StringBuilder ();

Sbuilder. Append (string. Format ("Address: {0}", reply. Address. ToString ()));

Sbuilder. Append (string. Format ("RoundTrip time: {0}", reply. RoundtripTime ));

Sbuilder. Append (string. Format ("Time to live: {0}", reply. Options. Ttl ));

Sbuilder. Append (string. Format ("Don't fragment: {0}", reply. Options. DontFragment ));

Sbuilder. Append (string. Format ("Buffer size: {0}", reply. Buffer. Length ));

ListBox1.Items. Add (sbuilder. ToString ());

}

}