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     My previous question  Need to convert double or decimal to string

User · Answer

You can simply use decimal ToString    For two decimals  myDecimal ToString  0 00      For four decimals  myDecimal ToString  0 0000      This gives dot as decimal separator  and no thousand separator regardless of culture

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You can use  value ToString CultureInfo InvariantCulture    to get exact double value without putting precision

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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

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I think you could have used  value ToString  F  NumberOfDecimals   value   10 502 value ToString  F2     10 50 value   10 5  value ToString  F2     10 50   Here is a detailed description of Numeric Format Strings

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It s really easy to specify your own decimal separator  Just took me about 2 hours to figure it out  D   You see that you were using the current ou other culture that you specify right  Well  the only thing the parser needs is an IFormatProvider  If you give it the  CultureInfo CurrentCulture NumberFormat as a formatter  it will format the double according to your current culture s NumberDecimalSeparator  What I did was just to create a new instance of the NumberFormatInfo class and set it s NumberDecimalSeparator property to whichever separator string I wanted  Complete code below   double value   2 3d  NumberFormatInfo nfi   new NumberFormatInfo    nfi NumberDecimalSeparator    -   string x   value ToString nfi     The result   2-3

User · Answer

double value   3 14159D  string v   value ToString   Replace            Console WriteLine v     Output  3 14159

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I prefer to use ToString   and IFormatProvider   double value   100000 3 Console WriteLine value ToString  0 0 00   new CultureInfo  en-US   false       Output  10 000 30

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

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