Format

[Mike Bailey]

How do you use the format function to format a decimal number so that you just get one number after the decimal.

[Nerseus]

Try:

decimal d = 1234567.44M;
string s1 = d.ToString("f1"); // "1234567.4"
string s2 = d.ToString("n1"); // "1,234,567.4"

 

The ToString() is the important part. The "M" in the first line is just to signify this is a decimal number.

 

The "f" in "f1" means format like a number with no commas and n number of digits (1 in this case). The "n" in "n1" is the same, but formats using commas (or whatever your local thousands separater is).

 

If you need to do explicit rounding, use the Math.Round() function followed by a ToString.

 

-nerseus