private void LoadDeviceListData()
{
_deviceSummaries = new List <DeviceSummary>();
RegistryKey key = Registry.CurrentUser.OpenSubKey(DMConstants.RegistryStore);
if (key == null)
{
return;
}
string[] valueNames = key.GetSubKeyNames();
foreach (string valueName in valueNames)
{
RegistryKey subKey = Registry.CurrentUser.OpenSubKey(DMConstants.RegistryStore + "\\" + valueName);
if (subKey == null)
{
continue;
}
DeviceSummary ds = new DeviceSummary();
ds.DeviceId = valueName;
ds.ConnectionString = (string)subKey.GetValue(DMConstants.RegistryConnectionString);
_deviceSummaries.Add(ds);
}
}
private void OnSaveDeviceInfo(object sender, RoutedEventArgs e)
{
string deviceId = DeviceNameBox.Text.ToLower();
if (deviceId.Length == 0 || DeviceConnectionStringBox.Text.Length == 0)
{
MessageBox.Show("Both the device name and the connection string must to be filled.");
return;
}
foreach (DeviceSummary deviceSummary in _deviceSummaries)
{
if (deviceSummary.DeviceId.ToLower() == deviceId)
{
MessageBox.Show("Duplicate device id. Choose a unique device id.");
return;
}
}
SaveDeviceListData(DeviceNameBox.Text, DeviceConnectionStringBox.Text);
DeviceSummary ds = new DeviceSummary();
ds.DeviceId = DeviceNameBox.Text;
ds.ConnectionString = DeviceConnectionStringBox.Text;
_deviceSummaries.Add(ds);
_deviceSummaries.Sort((x, y) => x.DeviceId.CompareTo(y.DeviceId));
RebuildDeviceList();
DeviceList.SelectedItem = ds;
}
private async void GetPropertiesAsync()
{
if (DeviceList.SelectedItems.Count != 1)
{
MessageBox.Show("Only one device can be selected.");
return;
}
DeviceSummary ds = (DeviceSummary)DeviceList.SelectedItem;
DeviceClient deviceClient = DeviceClient.CreateFromConnectionString(ds.ConnectionString, TransportType.Mqtt);
DeviceTwinClient deviceTwinClient = new DeviceTwinClient(deviceClient);
JObject root = await deviceTwinClient.GetRootAsync();
DesiredPropertyValueBox.Text = root["properties"]["desired"].ToString();
ReportedPropertyValueBox.Text = root["properties"]["reported"].ToString();
}
private void OnSelectedDeviceChanged(object sender, SelectionChangedEventArgs e)
{
if (DeviceList.SelectedItems.Count == 0)
{
return;
}
if (DeviceList.SelectedItems.Count == 1)
{
DeviceSummary ds = (DeviceSummary)DeviceList.SelectedItem;
DeviceNameBox.Text = ds.DeviceId;
DeviceConnectionStringBox.Text = ds.ConnectionString;
GetPropertiesAsync();
}
else
{
ClearDeviceDetails("<multiple>");
}
}