add commas using String.Format for number and

Question

Using String.Format how can i ensure all numbers have commas after every 3 digits eg 23000 = \"23,000\" and that 0 returns \"0\".

String.Format(\"{0:n}\", 0); //give

Answer 1

You can do this, which I find a bit cleaner to read the intent of:

String.Format("{0:#,###0}", 0);

Example:

string.Format("{0:#,###0}", 123456789); // 123,456,789
string.Format("{0:#,###0}", 0); // 0