internal static void Execute(Window owner, string label, Action operation, Action <ProgressDialogResult> successOperation, Action <ProgressDialogResult> failureOperation = null, Action <ProgressDialogResult> cancelledOperation = null)
{
ProgressDialogResult result = ExecuteInternal(owner, label, operation, null);
if (result.Cancelled && cancelledOperation != null)
{
cancelledOperation(result);
}
else if (result.OperationFailed && failureOperation != null)
{
failureOperation(result);
}
else if (successOperation != null)
{
successOperation(result);
}
}
internal ProgressDialogResult Execute(object operation)
{
if (operation == null)
{
throw new ArgumentNullException("operation");
}
ProgressDialogResult result = null;
_isBusy = true;
_worker = new BackgroundWorker();
_worker.WorkerReportsProgress = true;
_worker.WorkerSupportsCancellation = true;
_worker.DoWork +=
(s, e) => {
try
{
ProgressWindow.Current = new ProgressDialogContext(s as BackgroundWorker, e as DoWorkEventArgs);
if (operation is Action)
{
((Action)operation)();
}
else if (operation is Func <object> )
{
e.Result = ((Func <object>)operation)();
}
else
{
throw new InvalidOperationException("Operation type is not supoorted");
}
// NOTE: Always do this check in order to avoid default processing after the Cancel button has been pressed.
// This call will set the Cancelled flag on the result structure.
ProgressWindow.Current.CheckCancellationPending();
}
catch (ProgressDialogCancellationExcpetion)
{ }
catch (Exception ex)
{
if (!ProgressWindow.Current.CheckCancellationPending())
{
throw ex;
}
}
finally
{
ProgressWindow.Current = null;
}
};
_worker.RunWorkerCompleted +=
(s, e) => {
result = new ProgressDialogResult(e);
Dispatcher.BeginInvoke(DispatcherPriority.Send, (SendOrPostCallback) delegate {
_isBusy = false;
Close();
}, null);
};
_worker.ProgressChanged +=
(s, e) => {
if (!_worker.CancellationPending)
{
SubLabel = (e.UserState as string) ?? string.Empty;
ProgressBar.Value = e.ProgressPercentage;
}
};
_worker.RunWorkerAsync();
ShowDialog();
return(result);
}
