private async void btnDisconnect_Click(object sender, EventArgs e)
{
try
{
btnDisconnect.Enabled = false;
OutputStatus("Disconnecting...");
if (ReaderEnabled)
{
await ProcessorHost.UnregisterEventProcessorAsync();
ReaderEnabled = false;
}
if (SenderEnabled)
{
await EventHub.CloseAsync();
SenderEnabled = false;
}
OutputStatus("Disconnected.");
}
catch (Exception ex)
{
OutputStatus($"ERROR! {ex.Message}");
}
finally
{
btnConnect.Enabled = true;
btnDisconnect.Enabled = false;
}
}
private void Main_FormClosing(object sender, FormClosingEventArgs e)
{
if (ReaderEnabled)
{
try
{
Task.Run(() => ProcessorHost.UnregisterEventProcessorAsync());
}
catch
{
// suppress error and close app
}
}
if (SenderEnabled)
{
try
{
Task.Run(() => EventHub.CloseAsync());
}
catch
{
// suppress error and close app
}
}
try
{
Trace.Listeners.Remove(EventHubTrace);
}
catch
{
// suppress error and close app
}
}
private async Task ReadHub()
{
try
{
btnRead.Enabled = false;
await ProcessorHost.RegisterEventProcessorAsync <Processor>(ProcessorOptions);
OutputStatus("Reading event hub data.");
btnStop.Enabled = true;
}
catch (Exception ex)
{
OutputStatus($"ERROR! {ex.Message}");
btnRead.Enabled = true;
btnStop.Enabled = false;
}
}
private async void btnStop_Click(object sender, EventArgs e)
{
try
{
btnStop.Enabled = false;
OutputStatus("Event Hub reader stopping...");
await ProcessorHost.UnregisterEventProcessorAsync();
}
catch (Exception ex)
{
OutputStatus($"ERROR! {ex.Message}");
}
finally
{
btnStop.Enabled = false;
btnRead.Enabled = true;
}
}
