Format string/number "NNNNN"

Question

I have to write a progression of number, having (each) 5 digit. My code is:

int count = 1;
string labelCount = "";
foreach (var directory in folderList)
{
    if (count < 10)
    {
        labelCount = "0000" + count.ToString();
    }
    else if (count < 100)
    {
        labelCount = "000" + count.ToString();
    }
    else if (count < 1000)
    {
        labelCount = "00" + count.ToString();
    }
    else if (count < 10000)
    {
        labelCount = "0" + count.ToString();
    }

    count++;
}

but it doesnt looks so good in my opinion. Is there a way to format a number (adding 0xN to the left) or that's the only way?

Answer 1

Just give format to ToString method

var str = count.ToString("00000");

Answer 2

Take a look at String.PadLeft:

string formatted = count.ToString().PadLeft(6, '0');