Question

I want to format a string number. For example:

double number="118176";

It should look like 1181.71 or 1181,71.
I couldn’t find any format type. I tried some of format types as ToString("#,0") but it didn’t work.

Thanks for any advice.

Answer 1

First of all: a double variable can not take a string. But that aside, something like this should help:

double number = 1181.76;
string output = String.Format("{0:d2}", number);

This takes the number and creates a string from it using the decimal number format with 2 decimal places.

What you didn’t say is why you expect the integer 118176 to magically turn into a double with two decimals? The only way would be

double number = 118176;
string output = String.Format("{0:d2}", number / 100.0);

EDIT
Doing what you describe in your comment is a bit more complex:

string priceString = nodeFareList.SelectSingleNode("GenQuoteDetails/TotAmt").InnerText; 
double priceDouble = Convert.ToDouble(priceString) / 100.0;
price.InnerHtml += String.Format("{0:c}", priceDouble);

This converts the number in priceDouble to a string with the value formatted like a currency. If you do not want the currency symbol, use the following:

price.InnerHtml += String.Format("{0:d2}", priceDouble);