public async Task ScanAsync()
{
_cts.Cancel();
Devices.Clear();
try
{
var cts = new CancellationTokenSource();
_cts = cts;
String strHostName = Dns.GetHostName();
// Find host by name
IPHostEntry iphostentry = Dns.GetHostEntry(strHostName);
// Enumerate IP addresses
List <Task> tasks = new List <Task>();
foreach (IPAddress ipaddress in iphostentry.AddressList)
{
if (ipaddress.AddressFamily == AddressFamily.InterNetwork)
{
Task discoveryTask = DeviceDiscovery.DiscoveryAsync(cts.Token, ipaddress);
tasks.Add(discoveryTask);
}
}
foreach (Task discoveryTask in tasks)
{
await discoveryTask;
}
cts.Dispose();
}
catch (Exception e)
{
MessageBox.Show(e.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
public MainWindowModel(MainWindow mainWindow)
{
Devices = new ObservableCollection <Device>();
MainWindow = mainWindow;
DeviceDiscovery = new DeviceDiscovery();
DeviceDiscovery.DeviceDiscovered += DeviceDiscovery_DeviceDiscovered;
}
public MainWindowModel(MainWindow mainWindow)
{
Devices = new ObservableCollection <Device>();
MainWindow = mainWindow;
DeviceDiscovery = new DeviceDiscovery();
DeviceDiscovery.DeviceDiscovered += DeviceDiscovery_DeviceDiscovered;
_cts = new CancellationTokenSource();
}
public async Task ScanAsync()
{
if (discoveryTask != null && (discoveryTask.Status == TaskStatus.WaitingForActivation || discoveryTask.Status == TaskStatus.Running))
{
_cts.Cancel();
Devices.Clear();
}
try
{
var cts = new CancellationTokenSource();
_cts = cts;
discoveryTask = DeviceDiscovery.DiscoveryAsync(_cts.Token).ContinueWith((t) => cts.Dispose());
await discoveryTask;
}
catch (Exception e)
{
MessageBox.Show(e.Message, "Error", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
