private void PopulateAdapterList()
{
_localHostItems.Clear();
AdapterList.ItemsSource = _localHostItems;
AdapterList.DisplayMemberPath = "DisplayString";
foreach (var localHostInfo in NetworkInformation.GetHostNames())
{
if (localHostInfo.IPInformation == null)
{
continue;
}
var adapterItem = new LocalHostItem(localHostInfo);
_localHostItems.Add(adapterItem);
}
}
private async void StartListener_Click(object sender, RoutedEventArgs e)
{
if (string.IsNullOrEmpty(ServiceNameForListener.Text))
{
_rootPage.NotifyUser("Please provide a service name.", NotifyType.ErrorMessage);
return;
}
if (CoreApplication.Properties.ContainsKey("listener"))
{
_rootPage.NotifyUser(
"This step has already been executed. Please move to the next one.",
NotifyType.ErrorMessage);
return;
}
CoreApplication.Properties.Remove("serverAddress");
// サーバソケットの作成
var listener = new Windows.Networking.Sockets.DatagramSocket();
// メッセージを受信したときのハンドラ
listener.MessageReceived += MessageReceivedAsync;
if (!string.IsNullOrWhiteSpace(InboundBufferSize.Text))
{
if (!uint.TryParse(InboundBufferSize.Text, out var inboundBufferSize))
{
_rootPage.NotifyUser(
"Please provide a positive numeric Inbound buffer size.",
NotifyType.ErrorMessage);
return;
}
try
{
// 受信時のデータバッファサイズをセット
listener.Control.InboundBufferSizeInBytes = inboundBufferSize;
}
catch (ArgumentException)
{
_rootPage.NotifyUser("Please provide a valid Inbound buffer size.", NotifyType.ErrorMessage);
return;
}
}
// Address or Adapter binding
LocalHostItem selectedLocalHost = null;
if ((BindToAddress.IsChecked == true) || (BindToAdapter.IsChecked == true))
{
selectedLocalHost = (LocalHostItem)AdapterList.SelectedItem;
if (selectedLocalHost == null)
{
_rootPage.NotifyUser("Please select an address / adapter.", NotifyType.ErrorMessage);
return;
}
CoreApplication.Properties.Add("serverAddress", selectedLocalHost.LocalHost.CanonicalName);
}
// 作成したソケットをアプリに保存する
CoreApplication.Properties.Add("listener", listener);
// Listenの開始
try
{
if (BindToAny.IsChecked == true)
{
// コントロールに入力されたポートでListenする
await listener.BindServiceNameAsync(ServiceNameForListener.Text);
_rootPage.NotifyUser("Listening", NotifyType.StatusMessage);
}
else if (BindToAddress.IsChecked == true)
{
if (selectedLocalHost == null)
{
return;
}
await listener.BindEndpointAsync(selectedLocalHost.LocalHost, ServiceNameForListener.Text);
_rootPage.NotifyUser(
"Listening on addrress " + selectedLocalHost.LocalHost.CanonicalName,
NotifyType.StatusMessage);
}
else if (BindToAdapter.IsChecked == true)
{
if (selectedLocalHost == null)
{
return;
}
var selectedAdapter = selectedLocalHost.LocalHost.IPInformation.NetworkAdapter;
await listener.BindServiceNameAsync(ServiceNameForListener.Text, selectedAdapter);
_rootPage.NotifyUser(
"Listening on adapter " + selectedAdapter.NetworkAdapterId,
NotifyType.StatusMessage);
}
}
catch (Exception exception)
{
CoreApplication.Properties.Remove("listenner");
if (SocketError.GetStatus(exception.HResult) == SocketErrorStatus.Unknown)
{
throw;
}
_rootPage.NotifyUser(
"Start listening failed with error: " + exception.Message,
NotifyType.ErrorMessage);
}
}
