DevExpress.OutlookInspiredApp.Win.ViewModel.MainViewModel.OnSelectedModuleChanged C# (CSharp) Méthode

        protected virtual void OnSelectedModuleChanged(object oldModule) {
            if(oldModule != null) {
                if(ModuleRemoved != null)
                    ModuleRemoved(oldModule, EventArgs.Empty);
            }
            if(SelectedModuleChanged != null)
                SelectedModuleChanged(this, EventArgs.Empty);
            if(SelectedModule != null) {
                ViewModelHelper.EnsureModuleViewModel(SelectedModule, this);
                if(ModuleAdded != null)
                    ModuleAdded(SelectedModule, EventArgs.Empty);
            }
        }
        protected virtual void RaiseSelectedModuleTypeChanged() {