In C# winform how we can automatically add commas after adding two integer values ?

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Hello there,

I just want to know, after the sum of two numbers like 1000 + 5000 = 6000, Here after the sum I want to add comma like 6,000 how to do this automatically ?

OR in caseif there is a value like 10000 or 100000 here it should get the output like this :

10,000 & 1,00,000 automatically.

What I have tried:

Nothing tried as it is new for me.

Posted 14-Nov-22 21:15pm

Nikhil Yogi

Updated 14-Nov-22 21:30pm

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Graeme_Grant · Answer 1 · 2022-11-14T21:18:00

You use: Standard numeric format strings | Microsoft Learn[^] or more specifically: Custom numeric format strings | Microsoft Learn[^]
There are three (3) ways:

C#

var formatted = string.Format("{0:N0}", value);

the second:

C#

var formatted = value.ToString("{0:N0}");

and the third:

C#

var formatted = "{value:N0}";

OriginalGriff · Answer 2 · 2022-11-14T21:30:00

You don't add commas to numbers, you add commas to strings when your prepare a number for presentation to the user. And even then, you don't "just add them", as the position of commas as numeric separators depends on the users culture settings. For example:

12,34,567.89   Indian format
1,234,567.89   English and American format
1 234 567,89   Canadian format
1.234.567,89   Italian format

But there are other combinations: Decimal and Thousands Separators (International Language Environments Guide)[^]

Basically, you shouldn't assume any particular numbering format: you could confuse the issue quite considerably!

In C# winform how we can automatically add commas after adding two integer values ?

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