private void Btn_PlanManagement_Click(object sender, RoutedEventArgs e) { try { if ((planControl_MVVM == null)) { planControl_MVVM = new MVVM_PlanManagement(); planControl_MVVM.Closed += PlanControl_MVVM_Closed;; planControl_MVVM.Show(); } else { planControl_MVVM.Focus(); } } catch (Exception ex) { logFile.Error(ex.Message); } }
private void PlanControl_MVVM_Closed(object sender, EventArgs e) { planControl_MVVM = null; }