/// <summary>
/// Default checkbox selection makes it an important transaction, hence we do not release claim when we get a release devicerequested event.
/// </summary>
async void ClaimedPrinter_ReleaseDeviceRequested(ClaimedPosPrinter sender, PosPrinterReleaseDeviceRequestedEventArgs args)
{
if (IsAnImportantTransaction)
{
await sender.RetainDeviceAsync();
}
else
{
ResetTheScenarioState();
}
}
async void ClaimedPrinter2_ReleaseDeviceRequested(ClaimedPosPrinter sender, PosPrinterReleaseDeviceRequestedEventArgs args)
{
if (IsAnImportantTransactionInstance2)
{
await sender.RetainDeviceAsync();
}
else
{
claimedPrinter2.ReleaseDeviceRequested -= ClaimedPrinter2_ReleaseDeviceRequested;
claimedPrinter2.Dispose();
claimedPrinter2 = null;
}
}
async void ClaimedPrinter1_ReleaseDeviceRequested(ClaimedPosPrinter sender, PosPrinterReleaseDeviceRequestedEventArgs args)
{
if (IsAnImportantTransactionInstance1)
{
await sender.RetainDeviceAsync();
}
else
{
claimedPrinter1.ReleaseDeviceRequested -= ClaimedPrinter1_ReleaseDeviceRequested;
claimedPrinter1.Dispose();
claimedPrinter1 = null;
if (printerInstance1 != null)
{
printerInstance1.Dispose();
printerInstance1 = null;
}
}
}
/// <summary>
/// If the "Retain device" checkbox is checked, we retain the device.
/// Otherwise, we allow the other claimant to claim the device.
/// </summary>
private async void ClaimedPrinter_ReleaseDeviceRequested(ClaimedPosPrinter sender, PosPrinterReleaseDeviceRequestedEventArgs args)
{
if (IsAnImportantTransaction)
{
await sender.RetainDeviceAsync();
}
else
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
NotifyUser("Lost printer claim.", NotifyType.ErrorMessage);
ReleaseClaimedPrinter();
});
}
}
async void ClaimedPrinter2_ReleaseDeviceRequested(ClaimedPosPrinter sender, PosPrinterReleaseDeviceRequestedEventArgs args)
{
if (IsAnImportantTransactionInstance2)
{
await sender.RetainDeviceAsync();
}
else
{
claimedPrinter2.ReleaseDeviceRequested -= ClaimedPrinter2_ReleaseDeviceRequested;
claimedPrinter2.Dispose();
claimedPrinter2 = null;
}
}
/// <summary>
/// Default checkbox selection makes it an important transaction, hence we do not release claim when we get a release devicerequested event.
/// </summary>
async void ClaimedPrinter_ReleaseDeviceRequested(ClaimedPosPrinter sender, PosPrinterReleaseDeviceRequestedEventArgs args)
{
if (IsAnImportantTransaction)
{
await sender.RetainDeviceAsync();
}
else
{
ResetTheScenarioState();
}
}
