Dynamic string format specifier

  • Thread starter Thread starter Guest
  • Start date Start date
G

Guest

Hello,

I would like to be able to accept a format string in the form of say {0:D2}
as an input from a dialog box, and then dynamically format the output string
based on this new format specifier.

So if I have something like this in my code:
String.Format("The number will look like this {0:D2}",3);

It would give:
"The number will look like this: 03"

BUT I want the number of zeroes to be user defined at runtime, so
that the user can ask for a width of say four instead {0:D4}
"The number will look like this: 0003"

I've tried various things but I end up getting the actual format as part of
the string:
"The number will look like this: 3{0:D4}"

Many thanks,

Ronnie
 
Hi Ronnie,

You can use code like this:

Console.WriteLine("Please enter a format: ");
string format = Console.ReadLine();
Console.WriteLine(string.Format("The number will look like this: " +
format, 3));
Console.WriteLine("Press ENTER to close.");
Console.ReadLine();


Let me know if I've misunderstood your question or you need more
information. Thanks.


Sincerely,
Walter Wang ([email protected], remove 'online.')
Microsoft Online Community Support

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