问题
I do not know why I am receiving the following error. Can anyone shed some light on this?
System.Net.Sockets.SocketeException: An invalid argument was supplied Error Code:10022 [closed]
private void btnStart_Click(object sender, EventArgs e)
{
try
{
epLocal = new IPEndPoint(IPAddress.Parse(txtIP1.Text), Convert.ToInt32(txtPort1.Text));
sck.Bind(epLocal);
epRemote = new IPEndPoint(IPAddress.Parse(txtIP2.Text), Convert.ToInt32(txtPort2.Text));
//Here Error Occures I dont know what is my mistake?
sck.Bind(epRemote);
byte[] buffer = new byte[1500];
sck.BeginReceiveFrom(buffer, 0, buffer.Length, SocketFlags.None, ref epRemote, new AsyncCallback(MessageCallBack), buffer);
btnStart.Text = "Connected";
btnStart.Enabled = false;
btnSend.Enabled = true;
txtMessage.Focus();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
回答1:
You are binding same socket to mutiple Endpoint objects , that's why you are getting an InvalidArgument exception , You can bind one socket to only one IPEndPoint object at a time.
As you are trying to listen on Public IP address and on Local IP , please try this one
IPEndPoint ep = new IPEndPoint(IPAddress.Any, yourportnumber );
sck.Bind(ep) ;
this will create a listener that listen on All the ip addresses of your PC , Otherwise you better use a Seperate socket object
IF I were you , I would not parse local IPAddress
from a textbox
instead i would use something like IPAddress.Loopback
来源:https://stackoverflow.com/questions/19874725/system-net-sockets-socketeexception-an-invalid-argument-was-supplied-error-code