How to determin UnityWebRequest's NetworkError?

Unity Engine
1

Hi.
I have one question about UnityWebRequest’s NetworkError.

UnityWebRequest req;
UnityWebRequestAsyncOperation aync = req.SendWebRequest();
aync.completed += (op) =>
{
    if (req.isHttpError)
    {
        // Do Something.
    }
    else if (req.isNetworkError)
    {
        // Do Something.
    }
    else
    {
        // Handle datas.
    }
};

In this case, How to know what is NetworkError?

req.error string is just string… I want to handle this error case by case.

Thanks.

2

Currently no details about the error are exposed other than the error string.
What specific handling do you want to do?

3

Uhm… I just want to notice to user detail network fail information.