AppTemplate.Controls.SplitViewPaneMenu.OnPaneToggled C# (CSharp) Method

        private void OnPaneToggled()
        {
            if (this._parent.IsPaneOpen)
            {
                this.ItemsPanelRoot.ClearValue(WidthProperty);
                this.ItemsPanelRoot.ClearValue(HorizontalAlignmentProperty);
            }
            else if (this._parent.DisplayMode == SplitViewDisplayMode.CompactInline
                     || this._parent.DisplayMode == SplitViewDisplayMode.CompactOverlay)
            {
                this.ItemsPanelRoot.SetValue(WidthProperty, this._parent.CompactPaneLength);
                this.ItemsPanelRoot.SetValue(HorizontalAlignmentProperty, HorizontalAlignment.Left);
            }
        }