How to display int as a TimeSpan in string.Format?

Question

I have the following code:

int sec = 62;
string str = string.Format("Time: {0:xxx}", sec);

What should I type in the place of xxx if I want an output like this: Time: 00:01:02?

I know I can type:

string.Format("Time: {0:xxx}", TimeSpan.FromSeconds(sec));

or similar but the only part I can change is the xxx part.

Any ideas?

Answer 1

Since the format string cannot change the type of its arguments there is no other option than the one you cannot use.

After all, int is a type that contains numbers (fundamentally, at least), not time spans and thus why would an int be formattable as a time span?

Answer 2

You could do something like String.Format("Time: {0}", TimeSpan.FromSeconds(sec).ToString("c");

The exact format of the ToString argument can be found at http://msdn.microsoft.com/en-us/library/dd992632.aspx