Convert Date Time and Decimal to user specific format

Question

I am writing a function to convert Decimal/Datetime to the format specified by user. For example: If my input string is 1234.1254 and format string is " 000.00 " then the output should be 1234.13 . Same goes for Datetime, if input is DateTime.Now and format string is " dd/MM/yyyy " then the date should be returned in the given format. I am not sure how can I achieve this, any suggestions on how can I proceed here? Thanks

Satya Karki · Answer

You can format simply: Math.Round(decValue, 2) // for decimal output var result = (1.7289).ToString( "#.##" ); // for string output And then datetime var returnValue = DateTime.Now.ToString( "dd/MM/yyyy" ); For more details: https://docs.microsoft.com/en-us/dotnet/standard/base-types/custom-date-and-time-format-strings

Rijwan Ansari · Answer

For Decimal Round figure: decimal decValue = 21234.122122; var roundValue = Math.Round(decValue, 2); // roundValue = 21234.12 You might also want to look at bankers rounding / round-to-even with the following overload: Math.Round(DecValue, 2, MidpointRounding.ToEven); For String output: String.Format( "{0:0.00}" , 140.6767554); // "140.67" String.Format( "{0:0.00}" , 140.1); // "140.10" String.Format( "{0:0.00}" , 140); // "140.00" var a = inputStringValue.ToString( "0.00" ); For DateTime: DateTime date1 = new DateTime(2008, 1, 2, 6, 30, 15); var formatDate = date1.ToString( "dd/MM/yyyy" )

Sachin Singh · Answer

these are the different date fromats , you need to map user specified format to equivalent format Console.WriteLine(aDate.ToString( "MM/dd/yyyy" )); Console.WriteLine(aDate.ToString( "dddd, dd MMMM yyyy" )); Console.WriteLine(aDate.ToString( "dddd, dd MMMM yyyy" )); Console.WriteLine(aDate.ToString( "dddd, dd MMMM yyyy" )); Console.WriteLine(aDate.ToString( "dddd, dd MMMM yyyy" )); Console.WriteLine(aDate.ToString( "dddd, dd MMMM yyyy" )); Console.WriteLine(aDate.ToString( "dddd, dd MMMM yyyy HH:mm:ss" )); Console.WriteLine(aDate.ToString( "MM/dd/yyyy HH:mm" )); Console.WriteLine(aDate.ToString( "MM/dd/yyyy hh:mm tt" )); Console.WriteLine(aDate.ToString( "MM/dd/yyyy H:mm" )); Console.WriteLine(aDate.ToString( "MM/dd/yyyy h:mm tt" )); Console.WriteLine(aDate.ToString( "MM/dd/yyyy HH:mm:ss" )); Console.WriteLine(aDate.ToString( "MMMM dd" )); Console.WriteLine(aDate.ToString( "yyyy’-‘MM’-‘dd’T’HH’:’mm’:’ss.fffffffK" )); Console.WriteLine(aDate.ToString( "ddd, dd MMM yyy HH’:’mm’:’ss ‘GMT’" )); Console.WriteLine(aDate.ToString( "yyyy’-‘MM’-‘dd’T’HH’:’mm’:’ss" )); Console.WriteLine(aDate.ToString( "HH:mm" )); Console.WriteLine(aDate.ToString( "hh:mm tt" )); Console.WriteLine(aDate.ToString( "H:mm" )); Console.WriteLine(aDate.ToString( "h:mm tt" )); Console.WriteLine(aDate.ToString( "HH:mm:ss" )); Console.WriteLine(aDate.ToString( "yyyy MMMM" )); for example if user says i want format as dd/mm/yyyy then store that in string pass that to ToString() string format= "dd/mm/yyyy" ; var yourdate=date.ToString(format); similarly for Decimal string format= "0.00" ; var yourNum=DecimalNum.ToString(format);