/// <summary>
/// Removes a given SannerDataItem from the scanner information list
/// </summary>
/// <param name="removedScannerInfo">ScannerDataItem that is to be removed from the list </param>
private void RemoveFromList(ScannerDataItem removedScannerInfo)
{
// If currently selected scanner is being removed, make sure
// to select a different one
if (currentScannerDeviceId == removedScannerInfo.Id)
{
String scannerIdToSelect = (scannerInfoList.Count == 0) ?
null :
scannerInfoList.ElementAt(0).Id;
ChangeCurrentlySelectedScanner(scannerIdToSelect);
}
scannerInfoList.Remove(removedScannerInfo);
OnPropertyChanged("ScannerListSize");
}
/// <summary>
/// Event handler a scanner being added
/// </summary>
/// <param name="sender"></param>
/// <param name="deviceInfo">The device info for the device which was added</param>
private async void OnScannerAdded(DeviceWatcher sender, DeviceInformation deviceInfo)
{
await
MainPage.Current.Dispatcher.RunAsync(
Windows.UI.Core.CoreDispatcherPriority.Normal,
() =>
{
MainPage.Current.NotifyUser(String.Format("Scanner with device id {0} has been added", deviceInfo.Id), NotifyType.StatusMessage);
// search the device list for a device with a matching device id
ScannerDataItem match = FindInList(deviceInfo.Id);
// If we found a match then mark it as verified and return
if (match != null)
{
match.Matched = true;
return;
}
// Add the new element to the end of the list of devices
AppendToList(deviceInfo);
}
);
}