AvalonStudio.Controls.TabControlViewModel.InvalidateIsVisible C# (CSharp) Method

        private void InvalidateIsVisible()
        {
            bool result = false;

            foreach (var tool in Tools)
            {
                if (tool is ToolViewModel)
                {
                    if ((tool as ToolViewModel).IsVisible)
                    {
                        result = true;
                        break;
                    }
                }
            }

            IsVisible = result;
        }