how to achieve timespan to string conversion?

Question

I tried searching here, but it couldn't help me much ..
I want to convert time_span to string, I don't want to return the timespan in days .. but only HH:mm:ss. How to achieve that?

My sample code is here:

              String time_span_par = "06:12:40";
              String time_str = "18:13:59";
              TimeSpan time_span_var = TimeSpan.Parse(time_span_par);
              TimeSpan time_span = TimeSpan.Parse(time_str);

              time_span = time_span.Add(time_span_var);
              string temp = time_span.ToString("HH:mm:ss");

Answer 1

Try using

DateTime d = new DateTime(time_span.Ticks);
string time = d.ToString("HH:mm:ss");

Answer 2

This should work:

string temp = string.Format("{0}:{1}:{2}",
    time_span.Hours.ToString(), time_span.Minutes.ToString(),
    time_span.Seconds.ToString());

As per comment if you want the double digits you could do:

string temp = string.Format("{0}:{1}:{2}",
    time_span.Hours.ToString("00"), time_span.Minutes.ToString("00"),
    time_span.Seconds.ToString("00"));

Edited:as per jimmy's comment,

string temp = string.Format("{0:00}:{1:00}:{2:00}",time_span.Hours, time_span.Minutes, time_span.Seconds);