public void Stop(string operationId)
{
WpfUtilities.Post(new DispatchAction {
Dispatcher = _progressBar.Dispatcher,
Delay = TimeSpan.FromSeconds(0.1),
Action = () => StopWorker(operationId)
});
}
/// <summary>
/// Enqueue a progress bar request for the given operation id.
/// The progress bar will be shown only after a short delay (.5 sec).
/// </summary>
public void Start(string operationId, string toolTipText)
{
var item = AddOrUpdateOperation(operationId, toolTipText);
// Start a new one
WpfUtilities.Post(new DispatchAction {
Dispatcher = _progressBar.Dispatcher,
Delay = TimeSpan.FromSeconds(0.3),
Action = () => StartWorker(item)
});
}
private static T TryAction <T>(DispatcherObject dispatcher, Action action, Func <T> func, int maxLoops)
where T : class
{
for (var i = 0; i < maxLoops; i++)
{
action();
var result = WpfUtilities.Invoke(dispatcher, DispatcherPriority.Background, func);
if (result != null)
{
return(result);
}
}
return(null);
}