private NetworkViewmodel()
{
this.downloading = new ObservableCollection <DownloadItem>();
this.Downloading = new ReadOnlyObservableCollection <DownloadItem>(this.downloading);
this.allQueued = new ObservableCollection <DownloadItem>();
this.AllQueued = new ReadOnlyObservableCollection <DownloadItem>(this.allQueued);
this.waitForDownloads = new ObservableQueue <DownloadItem>();
this.WaitForDownloads = new ReadonlyObservableQueue <DownloadItem>(this.waitForDownloads);
this.cancellation = new CancellationTokenSource();
this.CancelAllCommand = new DelegateCommand(() =>
{
this.CancelAllDownloads();
}, () => this.downloading.Count > 0 || this.waitForDownloads.Count > 0);
this.downloading.CollectionChanged += (sender, e) =>
{
((DelegateCommand)this.CancelAllCommand).FireCanExecuteChanged();
};
this.waitForDownloads.CollectionChanged += (sender, e) =>
{
((DelegateCommand)this.CancelAllCommand).FireCanExecuteChanged();
};
this.DownloadLoop();
}
public ReadonlyObservableQueue(ObservableQueue <T> queue)
{
this.queue = queue;
}