private void InstanceBackgroundWorkerGetBasicInformation_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e) { LabelCurrentStep.Content = string.Empty; IBoolCanClose = true; if (InstanceBackgroundWorkerGetBasicInformation != null) { InstanceBackgroundWorkerGetBasicInformation.Dispose(); InstanceBackgroundWorkerGetBasicInformation = null; } Window02 LWindow02 = new Window02(); this.Close(); LWindow02.ShowDialog(); }