private async void OpenOwnEndpoint_OnClick(object sender, RoutedEventArgs e)
{
this.OpenOwnEndpoint.IsEnabled = false;
this.OpenOwnEndpoint.Cursor = Cursors.AppStarting;
try {
var dialog = new OpenFileDialog();
bool?result = dialog.ShowDialog(this);
if (result.HasValue && result.Value)
{
using (var fileStream = dialog.OpenFile()) {
var reader = new BinaryReader(fileStream, Encoding.UTF8);
var addressBookEntry = reader.DeserializeDataContract <Uri>();
await this.SetEndpointAsync(await OwnEndpoint.OpenAsync(fileStream), addressBookEntry);
}
}
} finally {
this.OpenOwnEndpoint.Cursor = Cursors.Arrow;
this.OpenOwnEndpoint.IsEnabled = true;
}
}
/// <summary>
/// Creates a new local endpoint to identify the user, or opens a previously created one.
/// </summary>
/// <returns>A task whose result is the local user's own endpoint.</returns>
private async Task <OwnEndpoint> CreateOrOpenEndpointAsync()
{
OwnEndpoint result;
switch (MessageBox.Show("Do you have an existing endpoint you want to open?", "Endpoint selection", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question))
{
case DialogResult.Yes:
var openFile = new OpenFileDialog();
if (openFile.ShowDialog() == DialogResult.Cancel)
{
result = null;
break;
}
using (var fileStream = openFile.OpenFile())
{
result = await OwnEndpoint.OpenAsync(fileStream);
}
break;
case DialogResult.No:
result = await this.OwnEndpointServices.CreateAsync();
string privateFilePath = Path.GetTempFileName();
using (var stream = File.OpenWrite(privateFilePath))
{
await result.SaveAsync(stream);
}
Console.WriteLine("Private receiving endpoint: \"{0}\"", privateFilePath);
break;
default:
result = null;
break;
}
return(result);
}