Question

I need help converting a string to double with 7 decimals. I have a string "00000827700000" and need it converted to 82.77

Tried using String.Format() with {0:N7} without success.

Answer 1

It looks like you could use:

decimal x = decimal.Parse(text.Substring(0, 7) + "." +
                          text.Substring(7),
                          CultureInfo.InvariantCulture);

That would actually parse it to 82.7700000, as decimal preserves trailing zeroes (to an extent) but maybe that’s good enough? It not, you could change the second argument to

text.Substring(7).TrimEnd('0')

Note that I’d strongly recommend you to at least consider using decimal instead of double. You haven’t explained what this value represents, but if it’s stored as decimal figures which you need to preserve, it smells more like a decimal to me.