private async void LookupRegistrantByEmail()
{
txtbxMessages.Text = "Looking up your registration info...";
//Disable form controls during lookup
btnSearch.Visibility = System.Windows.Visibility.Collapsed;
btnSearch.IsEnabled = false;
btnCancel.Visibility = System.Windows.Visibility.Collapsed;
btnCancel.IsEnabled = false;
try
{
if ((controller.ActiveRegistrant = await controller.WebAPI.GetRegistrantByEmail(txtbxEmail.Text)) == null)
{
txtbxMessages.Text = String.Format("{1}{0}{2}{0}{3}{0}{4}",
Environment.NewLine,
"Your registration info was not found.",
"Please check your email and try again.",
"If the problem persists, start over and",
"click 'Register' to continue checking in.");
}
else
{
controller.DisplayRegistrant();
//Reset prompt
txtbxMessages.Text = "Enter your email below.";
txtbxEmail.Clear();
}
}
catch (System.Net.Http.HttpRequestException http_ex)
{
controller.Disconnect();
txtbxMessages.Text = String.Format("{1}{0}{2}",
Environment.NewLine,
"Online connection lost. Returning to offline mode.",
"Please check your internet connection and try again.");
controller.LogError("Online connection lost.", http_ex.Message);
btnSearch.Visibility = System.Windows.Visibility.Visible;
btnCancel.Visibility = System.Windows.Visibility.Visible;
btnCancel.IsEnabled = true;
return;
}
catch (Exception ex)
{
txtbxMessages.Text = String.Format("{1}{0}{2}{0}{3}",
Environment.NewLine,
"An error occurred. Please try again.",
"If the problem persists, start over and",
"click 'Register' to continue checking in.");
controller.LogError(ex.Message);
}
//Reenable form controls after lookup
btnSearch.Visibility = System.Windows.Visibility.Visible;
btnSearch.IsEnabled = true;
btnCancel.Visibility = System.Windows.Visibility.Visible;
btnCancel.IsEnabled = true;
}
private void btnDisconnect_Click(object sender, RoutedEventArgs e)
{
BtnClick(sender, e);
controller.Disconnect();
}