/// <summary>
/// 定时器周期触发事件处理函数
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Timer1_Tick(object sender, EventArgs e)
{
if (dataManSystem == null)
{
this.Invoke(DiscoverScanner);
}
else
{
try
{
///关断定时器，防止重复触发
this.timer1.Stop();
///使用“GET DEVICE.NAME”命令，检测扫码枪是否掉线
DmccResponse dmccResponse = dataManSystem.SendCommand("GET DEVICE.NAME", 1000);
}
catch (Exception)
{
dataManSystem.Disconnect();
dataManSystem = null;
this.comboBox1.Items.Clear();
systemInfos.Clear();
}
this.timer1.Start();
}
}
private void MainForm_FormClosing(object sender, EventArgs e)
{
_closing = true;
_autoconnect = false;
//if (null != _system && _system.IsConnected)
// if(null != _system)
if (null != _system && _system.State == 0)
{
_system.Disconnect();
}
}
private void MainForm_FormClosing(object sender, EventArgs e)
{
_closing = true;
_autoconnect = false;
if (null != _system && _system.State == ConnectionState.Connected)
{
_system.Disconnect();
}
_ethSystemDiscoverer.Dispose();
_ethSystemDiscoverer = null;
_serSystemDiscoverer.Dispose();
_serSystemDiscoverer = null;
}
public String get(String ipname, int trials, int pause)
{
String retval = "***";
System.Net.IPAddress ipaddress = System.Net.IPAddress.Parse(ipname);
EthSystemConnector conn = new EthSystemConnector(ipaddress);
conn.UserName = "******";
DataManSystem dataman = new DataManSystem(conn);
int counter = 0;
Boolean found = false;
while ((found == false) && (counter < trials))
{
try {
dataman.Connect();
DmccResponse response = dataman.SendCommand("GET RESULT");
retval = response.PayLoad;
found = true;
}
catch (Exception) {
System.Threading.Thread.Sleep(pause * 1000);
}
finally {
dataman.Disconnect();
counter++;
}
}
return(retval);
}
public void Disconnect()
{
try
{
if (_system == null || _system.State != ConnectionState.Connected)
{
return;
}
_system.Disconnect();
CleanupConnection();
_results.ClearCachedResults();
_results = null;
}
catch { }
}
