private async void OnDownloadProgressChanged(object sender, TransferItem e)
{
await _dispatcherWrapper.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
if (DownloadsState == ContentState.Loading)
{
return;
}
DownloadsState = ContentState.Normal;
var item = Downloads.FirstOrDefault(d => d.OperationGuid == e.OperationGuid);
if (item == null)
{
if (e.Status != BackgroundTransferStatus.Completed &&
e.Status != BackgroundTransferStatus.Canceled)
{
return;
}
Downloads.Add(new TransferItemViewModel(e, _locService));
item = Downloads.FirstOrDefault(d => d.OperationGuid == e.OperationGuid);
if (item == null)
{
return;
}
}
else
{
item.Operation = e;
}
if (item.Status == BackgroundTransferStatus.Completed ||
item.Status == BackgroundTransferStatus.Canceled)
{
Downloads.Remove(item);
}
if (Downloads.Count == 0)
{
DownloadsState = ContentState.NoData;
}
else
{
Downloads.OrderBy(d => d.Status, new TransferStatusComparer());
}
CancelAllDownloadsCommand.RaiseCanExecuteChanged();
});
}