Counter with 5 digits

Question

I want counter with 5 digits, for exaple: 00000, 00001, 00002.... I creating files with this command:

FileStream Fl = File.Create(@"C:\\U\\L\\Desktop\\" + "i" + (counter) + ".xml");

Definition of counter:

int counter;

My increment: counter++;

Have you any idea, how i could make 5 digits counter? Thanks for all ideas:)

Answer 1

About custom numeric format strings

int value = 123;
Console.WriteLine(value.ToString("00000"));
// Displays 00123