delegate void ShowDataCallBack(string StringData);
int i = 0;
public void Data(string message)
{
if (label1.InvokeRequired)
{
ShowDataCallBack callBack = new ShowDataCallBack(Data);
label1.Invoke(callBack, new object[] { message + " " + i.ToString() });
i = i + 1;
}
else
{
this.label1.Text = message + i.ToString();
}
}
private void Form1_Load(object sender, EventArgs e) { //打开软件开始接受条码数据 Thread thread1 = new Thread(new ThreadStart(GetBarcodeInfo)); thread1.Start(); // GetJsonData(); }
public void GetBarcodeInfo()
{
string receiveString = null;
byte[] receiveData = null;
//实例化一个远程端点,IP和端口可以随意指定,等调用client.Receive(ref remotePoint)时会将该端点改成真正发送端端点
IPEndPoint remotePoint = new IPEndPoint(IPAddress.Any, 0);
int port = 11000;
while (true)
{
UdpClient client = null;
client = new UdpClient(port);
receiveData = client.Receive(ref remotePoint);//接收数据
receiveString = Encoding.Default.GetString(receiveData);
Data(receiveString);
Thread.Sleep(1000);
Data("");
client.Close();//关闭连接
}
}