SDL.TridionVSRazorExtension.Command.ItemContextDeleteCommand.MenuItemCallback C# (CSharp) Method

        private void MenuItemCallback(object sender, EventArgs e)
        {
            TridionVSRazorExtensionPackage package = ((TridionVSRazorExtensionPackage)this.ServiceProvider);
            package.InitApplication();

            DTE applicationObject = package.ApplicationObject;
            Solution solution = package.Solution;
            Project project = package.Project;

            if (solution != null && project != null && applicationObject.SelectedItems != null)
            {
                foreach (SelectedItem item in applicationObject.SelectedItems)
                {
                    if (!item.Name.EndsWith(".cshtml") && !item.Name.IsAllowedMimeType())
                    {
                        MessageBox.Show("Item '" + item.ProjectItem.FileNames[0] + "' is not supported.", "Wrong Operation", MessageBoxButton.OK, MessageBoxImage.Information);
                        return;
                    }
                }

                var files = applicationObject.SelectedItems.Cast<SelectedItem>().Where(item => item.Name.EndsWith(".cshtml") || item.Name.IsAllowedMimeType()).Select(item => item.ProjectItem.FileNames[0]);
                MainService.DeleteFiles(files.ToArray(), project);
            }
        }