private static bool IsNativeFile(WebAssetItem item) { if (item.Source.StartsWith("~/", StringComparison.Ordinal)) { string fileName = Path.GetFileName(item.Source); return fileName.Equals(ScriptRegistrar.jQuery, StringComparison.OrdinalIgnoreCase) || fileName.Equals(ScriptRegistrar.jQueryValidation, StringComparison.OrdinalIgnoreCase) || fileName.StartsWith("Telerik.", StringComparison.OrdinalIgnoreCase); } return false; }