CODEWITHSUNDEEP
c#.net
Leo Vo
Leo Vo

Reputation: 10330

How to get the best number format string?

I read a lot of articles about number format string, ex: http://msdn.microsoft.com/en-us/library/0c899ak8.aspx

I really not understand how to write the best format string. To get a excepted result, I can write some ways. Example: print number 1234567890 as a text "1,234,567,890". These ways give the same result:

1234567890.ToString("#,#")
1234567890.ToString("#,##")

"#,##" is the popular one on internet but why? Please give me some information how to write a good format string. Thanks.

Upvotes: 6

Views: 169

Answers (2)

Anton Tykhyy
Anton Tykhyy

Reputation: 20076

As far as I can see, there is no difference between "#,#" and "#,##": both mean 'format a number with group separators and without the fractional part'. Refer to SSCLI source for general number formatting for the gory details.

Upvotes: 1

Piotr Stapp
Piotr Stapp

Reputation: 19828

In your case it does not matter, because you are using int. This format #,## and #,# are for doubles and means that print only two digits after decimal point

Upvotes: 0

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