.NET String.Format() to add commas in thousands place for a number

2018-06-02 01:57:01

I want to add a comma in the thousands place for a number. String.Format() ?

String.Format("{0:n}", 1234); //Output: 1,234.00

string.Format("{0:n0}", 9876); // no digits after the decimal point. Output: 9,876

我发现这是最简单的方法：

myInteger.ToString("N0")

int number = 1000000000;
string whatYouWant = number.ToString("#,##0");
//You get: 1,000,000,000

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