How can I format a decimal?

Question

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How to format a decimal

I need to format a decimal like the following:

63.000 -> 63
63.045 -> 63.045
63.020 -> 63.02

But look at above, check the first one, if in decimal part there are only zeros, I need to remove those zeros for just 63.

Answer 1

String.Format would work for you, and the pattern "{0:0.###}" would work for all 3 of your cases.

String.Format("{0:0}", 63.000); 
String.Format("{0:0.###}", 63.045); 
String.Format("{0:0.##}", 63.02); 

Answer 2

Off the top of my head,

string.Format("{0:0.###}");

Answer 3

// max. three decimal places

String.Format("{0:0.###}", 63.000);      // "63"
String.Format("{0:0.###}", 63.045);         // "63.045"
String.Format("{0:0.###}", 63.02);         // "63.02"