Convert Double to String (The complete number) C#

Question

I want to do a Double to String conversion, but there's a problem. If I convert a Double to a String with the following code:

static void Main(string[] args)
{
    double dou = 1000000000000000000;
    // Result dou = 1E+18
    string str = dou.ToString();
    // Again Result str = 1E+18
}

I need the result to be str = 1000000000000000000.

How do I do this?

Might this be C#? Please explicitly mention what programming language this is supposed to be! — Xan-Kun Clark-Davis, Sep 12 '18 at 19:53
Looks like a duplicate of [Double to string conversion without scientific notation](https://stackoverflow.com/q/1546113/3744182), agree? — dbc, Apr 23 '21 at 16:37

score 0 · Answer 1 · answered Sep 12 '18 at 20:30

0

Is it C#?

https://learn.microsoft.com/en-us/dotnet/standard/base-types/standard-numeric-format-strings#the-numeric-n-format-specifier Try play with:

dou.ToString("N")

answered Sep 12 '18 at 20:30

PKCS12

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this Result = 1,000,000,000,000,000,000.00. I need **only** result = 1000000000000000000 – Michael Stone Sep 12 '18 at 20:47

nick · Accepted Answer · 2018-09-12T21:36:37.017

0

This should work

decimal dec = (decimal)dou;
string str = dec.ToString();

edited Sep 12 '18 at 21:36

answered Sep 12 '18 at 20:58

nick

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Convert Double to String (The complete number) C#

2 Answers2