How to display just first 2 decimals unequal to 0

Question

How can I display the number with just the 2 not=zero decimals?

Example:

For 0.00045578 I want 0.00045 and for 1.0000533535 I want 1.000053

Answer 1

You can use this trick:

int d, whole;
double number = 0.00045578;
string format;
whole = (int)number;
d = 1;
format = "0.0";
while (Math.Floor(number * Math.Pow(10, d)) / Math.Pow(10, d) == whole)
{
    d++;
    format += "0";
}
format += "0";
Console.WriteLine(number.ToString(format));