Format Decimal String in C# using .ToString()

Question

I have an amount stored in a decimal result:

Eg. decimal result = 1935698.27;

How can I format that to a String using .ToString() so that it looks like this: R 1 935 698,27

It needs to do the following:

Add R (take note of the space) to the front of the String
Add spaces to group the value in 3's (i.e R 00 000 000 000,00)
Replace the . with a ,

This formats according to the South African Rand currency format.

This is what I have:

decimal result = 1935698.27;
string strResult = result.ToString("What should I put here?"); // Need help

// Expected strResult = "R 1 935 698,27"

Any help is much appreciated!

Charles Mager · Accepted Answer · 2016-10-02 09:02:07Z

5

This is built in - just use the South African culture and the currency format specifier.

var result = 1935698.27m;
var ci = new CultureInfo("en-ZA");
var strResult = result.ToString("C", ci);
// strResult is R 1 935 698,27

See this fiddle.

answered Oct 2, 2016 at 9:02

Charles Mager

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3 Comments

Barry Michael Doyle Over a year ago

This doesn't add a space between R and the amount.

Charles Mager Over a year ago

It does - see the fiddle. I copy / pasted the output into the answer.

Charles Mager Over a year ago

@BarryMichaelDoyle if you look at the docs for the currency specifier, you can see how you could create a custom NumberFormatInfo to create whatever format you liked. It helps that the framework has a default for each culture, so usually this isn't needed.

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