CODEWITHSUNDEEP
c#string-formatting
connectedsoftware
connectedsoftware

Reputation: 7087

Force Sign and Localised Thousands Separator

Hopefully a simple answer although a web search hasn't yielded anything as of yet.

To format a number with thousands you simply use:

 var output = String.Format("{0:n0}", 1000000);
 // Output 1,000,000 or 1.000.000 depending on Culture

To format a number to always display a sign at the front you can use:

 var output = String.Format("{0:+0;-0;+0}", 1);
 // Output +1;

 var output = String.Format("{0:+0;-0;+0}", -1);
 // Output -1;

So how do I format a number with a sign and with a thousand separator?

Logically it should be this, but it doesn't work:

 var output = String.Format("{0:+n0;-n0;+0}", -1000000);

 // Expected output -1,000,000
 // Actual output -n10000000

Is there a format string that allows this and respects the current locale where the thousands separator could be a . or a ,?

Upvotes: 0

Views: 238

Answers (2)

Matthew
Matthew

Reputation: 148

You could give this a try:

int num = -5000000;
        Console.WriteLine(num.ToString("N0"));

Edit: My apologies! I was only focused on the negative symbol. Give this a shot:

string format = "+##,#;-##,#";
        int num = -5000000;
        int num2 = 5000000;
        Console.WriteLine(num.ToString(format));
        Console.WriteLine(num2.ToString(format));

Upvotes: 0

AlexD
AlexD

Reputation: 32576

You can combine the section specifier ; with the custom specifier ,:

For example, if the string "#,#" and the invariant culture are used to format the number 1000, the output is "1,000".

var output = String.Format("{0:+#,#;-#,#;0}", 1000000);

Upvotes: 1

Related Questions