How to format double value with zeros

Question

I would like to know is there is simple way to convert double value to a string as it is in C#? I used .ToString("R") and default .ToString() but it doesn't works.

Here is some test examples 0.00000000000000000000000001 gives me string 1.0E-26 and 29.999999999999999999994 converts to 30.0. I don't want that. How such representation can be avoided?

Answer 1

What representation do you want?

Check the MSDN for both standard and custom formatiing strings.