/// <summary>
/// Test Function: Send start / stop application direct method to all connected devices.
/// </summary>
/// <param name="packageFamily">Package Family of the UWP to start / stop.</param>
/// <param name="isStart">"true" to start, "false" to stop/> instance containing the event data.</param>
private async void CallDeviceMethodStartStopAll(string packageFamily, bool isStart)
{
DeviceTwinAndMethod tempDeviceTwin;
AppxLifeCycleDataContract.ManageAppLifeCycleParams parameters = new AppxLifeCycleDataContract.ManageAppLifeCycleParams();
parameters.pkgFamilyName = packageFamily;
if (isStart)
{
parameters.action = AppxLifeCycleDataContract.JsonStart;
}
else
{
parameters.action = AppxLifeCycleDataContract.JsonStop;
}
foreach (var device in _deviceList)
{
if (device.ConnectionState != DeviceConnectionState.Connected)
{
continue; //skip devices that are not connected to IoT Hub
}
tempDeviceTwin = new DeviceTwinAndMethod(App.IOTHUBCONNSTRING, device.Id);
if (tempDeviceTwin != null)
{
CancellationToken cancellationToken = new CancellationToken();
DeviceMethodReturnValue result = await tempDeviceTwin.CallDeviceMethod(AppxLifeCycleDataContract.ManageAppLifeCycleAsync, parameters.ToJsonString(), new TimeSpan(0, 0, 30), cancellationToken);
}
}
}
/// <summary>
/// Change current selected Device.
/// </summary>
private void DeviceComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
string deviceIdString = (string)DeviceCombobox.SelectedItem;
if (!String.IsNullOrEmpty(deviceIdString))
{
// Update _deviceTwin to selected device
_deviceTwin = new DeviceTwinAndMethod(App.IOTHUBCONNSTRING, deviceIdString);
if (_deviceTwin != null)
{
// Update Device Info to selected device
DeviceInfo.SetCurrentDevice(deviceIdString);
}
Device device = _deviceList.FirstOrDefault(d => d.Id == deviceIdString);
if (device != null)
{
DeviceConnectionStatus.Text = device.ConnectionState.ToString();
DeleteDeviceButton.IsEnabled = true;
}
}
}