Padding a string with zeros

Hi All,

We commonly come across situations where we need to pad a number with leading zeroes.

The simplest way of doing it is using string.Format() and {0:d3}

For example I have an integer i containing value 2 but I need 002, in this case I would use

string strNew = string.Format("{0:d3}", i);

Here 3 is total field width. If i need 00002, I would go for d5

Now this problem is solved, here is another problem: what I don't know in advance the size of the field or in other words, what if the field width is a variable.

Here is the solution:

string strFormat = "{0:d" + iFieldWIdth.ToString() + "}";

string strPaddedValue = string.Format(strFormat, i);

Enjoy