TimeSpan FormatString with optional hours

Question

I have a timespan, ts, that has mostly minutes and seconds, but sometimes hours. I'd like ts to return a formatted string that'll give the following results:

3:30 (hours not displayed, showing only full minutes)
13:30 
1:13:30 (shows only full hours instead of 01:13:30)

So far I have:

string TimeSpanText = string.Format("{0:h\\:mm\\:ss}", MyTimeSpan);

but it's not giving the above results. How can I achieve the results I want?

Answer 1

Maybe you want something like

string TimeSpanText = string.Format(
    MyTimeSpan.TotalHours >= 1 ? @"{0:h\:mm\:ss}" : @"{0:mm\:ss}",
    MyTimeSpan);