处理未定义的HttpStatusCode

Question

我想处理未定义的httpStatusCode，我使用Enum.IsDefined（）方法，但是如果返回false，我不知道该怎么办。 真的我想返回HttpResponseMessage并想为StatusCode属性设置值，如果该方法返回true，则将int值转换为HttpStatusCode枚举，但是当它返回false时我不知道该怎么办...

        var currentStatusCode = HttpContext.Current.Response.StatusCode;
        HttpResponseMessage httpResponseMessage = new HttpResponseMessage();
        if (Enum.IsDefined(typeof(HttpStatusCode), currentStatusCode))
        {
            httpResponseMessage.StatusCode = (HttpStatusCode)currentStatusCode;
        }
        else
        {
            //here is my problem
            httpResponseMessage.StatusCode = ??? 
        }