Question

If I have a string/integer that looks like 123, how can I convert that to look like 12.3?

Basically what I need is something faster (if possible) than this

Math.Round(Double.Parse(input / 1000), 1).ToString

Answer 1

If it’s an integer do:

double value = (double)integer / 10.0;
string output = value.ToString();

If it’s a string then you need to convert it to an integer first:

int integer = Int32.Parse(input);

If you’re not sure that the string is an integer:

bool isInt = Int32.TryParse(input, out integer);