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How to Convert Decimal to 2 fraction. example I want to convert 10.5234 to 10.52 and if the fraction is 0 disappear the fraction and 4.3014 convert to 4.3

Thomas Ayoub
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omar seleim
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    `MyVariable.ToString("N:2")` – devqon Mar 28 '17 at 13:10
  • and what if it is integer? 4.0 or 4. or 4? target data type string? decimal point localized? – Cee McSharpface Mar 28 '17 at 13:12
  • Possible duplicate of [How do you round a number to two decimal places in C#?](http://stackoverflow.com/questions/257005/how-do-you-round-a-number-to-two-decimal-places-in-c) – PaulF Mar 28 '17 at 13:15
  • Or a duplicate of this : http://stackoverflow.com/questions/2453951/c-sharp-double-tostring-formatting-with-two-decimal-places-but-no-rounding – PaulF Mar 28 '17 at 13:18

3 Answers3

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You can use

String.Format("{0:0.##}", myNumber);

You can have a look at the Custom Numeric Format Strings documentation.

If you use C#6.0 or above, you can use string interpolation like this:

$"{myNumber:0.##}"

as suggested by Jeppe Stig Nielsen

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Thomas Ayoub
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You can do it yourself like this: 

double toConvert = 10.5234;
double converted = ((int)Math.round(toConvert * 100)) / 100.0;

It will round your number to two decimal places.

Václav Struhár
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        double NumberToRound1 = 10.5234;
        double NumberToRound2 = 4.3014;
        //You can use Math.Round as follow
        Math.Round(NumberToRound1, 2);

        Math.Round(NumberToRound2, 2);

Desired Output:

enter image description here

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Pranav_Systematix
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