Parse string to TimeSpan

问题

I have some strings of xxh:yym format where xx is hours and yy is minutes like "05h:30m". What is an elegant way to convert a string of this type to TimeSpan?

回答1:

This seems to work, though it is a bit hackish:

TimeSpan span;


if (TimeSpan.TryParse("05h:30m".Replace("m","").Replace("h",""), out span))
            MessageBox.Show(span.ToString());

回答2:

DateTime.ParseExact or DateTime.TryParseExact lets you specify the exact format of the input. After you get the DateTime, you can grab the DateTime.TimeOfDay which is a TimeSpan.

In the absence of TimeSpan.TryParseExact, I think an 'elegant' solution is out of the mix.

@buyutec As you suspected, this method would not work if the time spans have more than 24 hours.

回答3:

Here'e one possibility:

TimeSpan.Parse(s.Remove(2, 1).Remove(5, 1));

And if you want to make it more elegant in your code, use an extension method:

public static TimeSpan ToTimeSpan(this string s)
{
  TimeSpan t = TimeSpan.Parse(s.Remove(2, 1).Remove(5, 1));
  return t;
}

Then you can do

"05h:30m".ToTimeSpan();

回答4:

From another thread:

How to convert xs:duration to timespan

回答5:

Are TimeSpan.Parse and TimeSpan.TryParse not options? If you aren't using an "approved" format, you'll need to do the parsing manually. I'd probably capture your two integer values in a regular expression, and then try to parse them into integers, from there you can create a new TimeSpan with its constructor.

来源：https://stackoverflow.com/questions/26760/parse-string-to-timespan

标签

timespan