private async void OnLogOn()
{
var client = new ChatClient();
await client.StartAsync();
try
{
var info = await client.LogOn(int.Parse(_userIdInput));
var current = Application.Current.MainWindow;
var mainVM = new MainViewModel(client, info);
var mainWindow = new MainWindow();
Application.Current.MainWindow = mainWindow;
mainWindow.DataContext = mainVM;
current.Close();
mainWindow.Show();
}
catch (DuplicateIdException)
{
}
}