private void CloseButton_Click(object sender, RoutedEventArgs e)
{
try
{
this.Message.Content = string.Empty;
if (this.receptor != null)
{
this.receptor.Dispose();
this.receptor = null;
}
if (this.mqtt != null)
{
this.mqtt.Dispose();
this.mqtt = null;
}
this.ConnectButton.IsEnabled = true;
this.Host.IsEnabled = true;
this.Port.IsEnabled = true;
this.UserName.IsEnabled = true;
this.Password.IsEnabled = true;
this.Topic.IsEnabled = true;
this.Tls.IsEnabled = true;
this.Trust.IsEnabled = true;
this.CloseButton.IsEnabled = false;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
private void ConnectButton_Click(object sender, RoutedEventArgs e)
{
try
{
this.Message.Content = string.Empty;
if (!int.TryParse(this.Port.Text, out int Port))
{
throw new Exception("Invalid port number.");
}
this.mqtt = new MqttClient(this.Host.Text, Port, this.Tls.IsChecked.HasValue && this.Tls.IsChecked.Value,
this.UserName.Text, this.Password.Password)
{
TrustServer = this.Trust.IsChecked.HasValue && this.Trust.IsChecked.Value,
};
this.mqtt.OnStateChanged += Mqtt_OnStateChanged;
this.mqtt.OnConnectionError += Mqtt_OnConnectionError;
this.mqtt.OnError += Mqtt_OnError;
this.mqtt.OnSubscribed += Mqtt_OnSubscribed;
this.receptor = new MqttEventReceptor(this.mqtt);
this.receptor.OnEvent += Receptor_OnEvent;
this.ConnectButton.IsEnabled = false;
this.Host.IsEnabled = false;
this.Port.IsEnabled = false;
this.UserName.IsEnabled = false;
this.Password.IsEnabled = false;
this.Topic.IsEnabled = false;
this.Tls.IsEnabled = false;
this.Trust.IsEnabled = false;
this.CloseButton.IsEnabled = true;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}