internal void AbortDeletion()
{
this.CurrentProcessStep = WorkflowSteps.Idle;
this.deletionWorker.Dispose();
this.deletionWorker = null;
this.OnAborted?.Invoke(this, new EventArgs());
}
public void StartDeleteProcess()
{
this.CurrentProcessStep = WorkflowSteps.DeleteProcessRunning;
this.deletionWorker = new DeletionWorker {
Data = this.Data
};
this.deletionWorker.ProgressChanged += this.deletionWorker_ProgressChanged;
this.deletionWorker.RunWorkerCompleted += this.deletionWorker_RunWorkerCompleted;
this.deletionWorker.RunWorkerAsync();
}
private void deletionWorker_RunWorkerCompleted(Object sender, RunWorkerCompletedEventArgs e)
{
this.CurrentProcessStep = WorkflowSteps.Idle;
if (e.Error != null)
{
this.showErrorMsg(e.Error.Message);
this.deletionWorker.Dispose();
this.deletionWorker = null;
}
else if (e.Cancelled)
{
if (this.deletionWorker.ErrorInfo != null)
{
// A error occurred, process was stopped
//
// -> Ask user to continue
if (this.OnDeleteError != null)
{
this.OnDeleteError(this, this.deletionWorker.ErrorInfo);
}
else
{
throw new Exception("Internal error: event handler is missing.");
}
}
else
{
// The user cancelled the process
this.OnCancelled?.Invoke(this, new EventArgs());
}
}
else
{
// TODO: Use separate class here?
var deletedCount = this.deletionWorker.DeletedCount;
var failedCount = this.deletionWorker.FailedCount;
var protectedCount = this.deletionWorker.ProtectedCount;
this.deletionWorker.Dispose();
this.deletionWorker = null;
this.OnDeleteProcessFinished?.Invoke(this, new DeleteProcessFinishedEventArgs(deletedCount, failedCount, protectedCount));
}
}