How can i format this textbox?

Question

I have this example 123456789. i want it display like:
123,456,789.00. how can i do?

Answer 1

Well it seems you need number formatting with 2 decimal places so the following line will do the job. 😉

Console.WriteLine(quot;{
123_456_789
.ToString("n2")
}");

Answer 2

Thank you!