Microsoft.Windows.Controls.Ribbon.RibbonGallery.UpdateIsSynchronizedWithCurrentItemInternal C# (CSharp) Méthode

        private void UpdateIsSynchronizedWithCurrentItemInternal()
        {
            bool oldValue = IsSynchronizedWithCurrentItemInternal;
            if (oldValue)
            {
                // Stop listening for currency changes
                RemoveCurrentItemChangedListener();
            }

            bool? isSynchronizedWithCurrentItem = IsSynchronizedWithCurrentItem;
            if (isSynchronizedWithCurrentItem.HasValue)
            {
                IsSynchronizedWithCurrentItemInternal = isSynchronizedWithCurrentItem.Value;
            }
            else
            {
                IsSynchronizedWithCurrentItemInternal = IsInitialized && (RibbonGallery.GetSourceCollectionView(this) != null);
            }

            bool newValue = IsSynchronizedWithCurrentItemInternal;
            if (newValue)
            {
                // Listen for currency changes
                AddCurrentItemChangedListener();

                // Synchronize
                SynchronizeWithCurrentItem();
            }

            if (oldValue != newValue)
            {
                // Notify categories
                for (int i = 0; i < Items.Count; i++ )
                {
                    RibbonGalleryCategory category = ItemContainerGenerator.ContainerFromIndex(i) as RibbonGalleryCategory;
                    if (category != null)
                    {
                        if (newValue)
                        {
                            category.AddCurrentItemChangedListener();
                        }
                        else
                        {
                            category.RemoveCurrentItemChangedListener();
                        }
                    }
                }
            }
        }