Textbox display formatting

Question

I want to add \",\" to after every group of 3 digits. Eg : when I type 3000000 the textbox will display 3,000,000 but the value still is 3000000.
I tried to use maskedte

Answer 1

Use String.Format

int value = 300000
String.Format("{0:#,###0}", value);
// will return 300,000

http://msdn.microsoft.com/en-us/library/system.string.format.aspx