Question

Hi can anyone explain these lines of codes, I need to understand how it works in order to proceed with what I am doing

if (e.Error == null){
    Stream responseStream = e.Result;
    StreamReader responseReader = new StreamReader(responseStream);
    string response = responseReader.ReadToEnd();

    string[] split1 = Regex.Split(response, "},{");
    List<string> pri1 = new List<string>(split1);
    pri1.RemoveAt(0);
    string last = pri1[pri1.Count() - 1];
    pri1.Remove(last);
}

Answer 1

// Check if there was no error
    if (e.Error == null)
    {

// Streams are a way to read/write information from/to somewhere
// without having to manage buffer allocation and such
        Stream responseStream = e.Result;

// StreamReader is a class making it easier to read from a stream
        StreamReader responseReader = new StreamReader(responseStream);

// read everything that was written to a stream and convert it to a string using
// the character encoding that was specified for the stream/reader.
        string response = responseReader.ReadToEnd();

// create an array of the string by using "},{" as delimiter
// string.Split would be more efficient and more straightforward.
        string[] split1 = Regex.Split(response, "},{");

// create a list of the array. Lists makes it easier to work with arrays
// since you do not have to move elements manually or take care of allocations
        List<string> pri1 = new List<string>(split1);
        pri1.RemoveAt(0);

// get the last item in the array. It would be more efficient to use .Length instead
// of Count()
        string last = pri1[pri1.Count() - 1];

// remove the last item
        pri1.Remove(last);
     }

I would use a LinkedList instead of List if the only thing to do was to remove the first and last elements.