Double to string conversion without scientific notation

Question

How to convert a double into a floating-point string representation without scientific notation in the .NET Framework?

\"Small\" samples (effective numbers may be of

Answer 1

The obligatory Logarithm-based solution. Note that this solution, because it involves doing math, may reduce the accuracy of your number a little bit. Not heavily tested.

private static string DoubleToLongString(double x)
{
    int shift = (int)Math.Log10(x);
    if (Math.Abs(shift) <= 2)
    {
        return x.ToString();
    }

    if (shift < 0)
    {
        double y = x * Math.Pow(10, -shift);
        return "0.".PadRight(-shift + 2, '0') + y.ToString().Substring(2);
    }
    else
    {
        double y = x * Math.Pow(10, 2 - shift);
        return y + "".PadRight(shift - 2, '0');
    }
}

Edit: If the decimal point crosses non-zero part of the number, this algorithm will fail miserably. I tried for simple and went too far.