String format C#

Question

I want to get the currency value in following format after doing string.format. I have used several formats but none of them are like what i wanted.

Value    After Format
0        $0
123      $123
1234     $1,234
12345    $12,345

I have used following code and it works fine.

Console.WriteLine(string.Format("{00:$#,#}", 12345));

But the problem is that when value becomes 0 then it prints just $ whereas i want to print $0

Thanks

Did you try Console.WriteLine(string.Format("{00:$0,#}", 12345)); — Marco
– Marco, Commented Nov 7, 2017 at 9:03
Just to mention it: learn.microsoft.com/en-us/dotnet/standard/base-types/… You can even have positive, zero and negative values be formatted differently in one format expression. — Fildor
– Fildor, Commented Nov 7, 2017 at 9:26

jason.kaisersmith · Accepted Answer · 2017-11-07 09:49:19Z

The # in the format string means display a digit if it is not zero. So when you have a 0 value, then it will not display anything.

So you need to change this to

Console.WriteLine(string.Format("{00:$#,0}", mynumber));

But you can also use the inbuilt currency string formatting option.

So then you can have

Console.WriteLine(string.Format("{0:c}", 99.556551));

Or if you don't want any decimals places then

Console.WriteLine(string.Format("{0:C0}", 99.556551));

Although this will round the value as well, so it might be better if you control this yourself.

And as reminded by @RufusL below, the string.format is not needed in a Console.Writeline, so you can also simplify this further;

Console.WriteLine("{0:C0}", 99.556551);

@RufusL Yes of course you are right, I just focused on the formatting differences and copy and pasted the rest and I and neglected this. I will update to make this obvious.

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