What is the C# equivalent to Delphi's FormatFloat?

Question

I'm porting some Delphi code to C#. I can't find a similar function to Delphi's FormatFloat .

I've got this line of code in Delphi

str := FormatFloat('000', 1);

which assigns to str the string '001' . Note the leading zeros.

How can I achieve the same result in C#?

Answer 1

You use string.Format() with custom numeric format strings . For example:

int a = 1;
string.Format("{0:000}", a); // returns "001"

Answer 2

You can use ToString() method :

int number = 3;
string fmt = number.ToString("D3");

string variable fmt will have value "003"