formatting numbers with leading zeros

[cody]

How can I format numbers with leading zeros? I believe I did this before
some time ago but I cannot remember how I did it.
I want the output be 100305 for 10:03:05.

string fname = string.Format("{0}{1}{2}.txt", dt.Hour, dt.Minute,
dt.Second);

I do not want to use ToString() because it generated to much temporary
objects, and DateTime.ToShortTimeString() is culture dependend and contains
colon characters.

 

[Luc E. Mistiaen]

use string.Format("{0:hh}{0:mm}{0:ss}.txt", dt);
or

use string.Format("{0:HH}{0:mm}{0:ss}.txt", dt);

/LM

 

[Jay B. Harlow [MVP - Outlook]]

Cody,
I would use:

string fname = string.Format("{0:HHmmss}.txt", dt);

NOTE: HH above formats hour as 00-23, hh formats hour as 01-12.

Alternatively you can use:

string fname = string.Format("{02}{12}{22}.txt", dt.Hour, dt.Minute,
dt.Second);

For documentation on what is allowed & how to use String.Format see:

http://msdn.microsoft.com/library/d...y/en-us/cpguide/html/cpconformattingtypes.asp

Hope this helps
Jay

 

[cody]

string fname = string.Format("{0:HHmmss}.txt", dt);

NOTE: HH above formats hour as 00-23, hh formats hour as 01-12.

Alternatively you can use:

thanks thats exactly what I was looking for!