c# - Converting double to string with N decimals, dot as decimal separator, and no thousand separator

Question

I need to convert a decimal to a string with N decimals (two or four) and NO thousand separator:

'XXXXXXX (dot) DDDDD'

The problem with CultureInfo.InvariantCulture is that is places ',' to separate thousands.

UPDATE

This should work for decimal and double types.

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My previous question: Need to convert double or decimal to string

Answer 1

For a decimal, use the ToString method, and specify the Invariant culture to get a period as decimal separator:

value.ToString("0.00", System.Globalization.CultureInfo.InvariantCulture)

The long type is an integer, so there is no fraction part. You can just format it into a string and add some zeros afterwards:

value.ToString() + ".00"