Crystal Reports Formula Workshop boolean condition to string

I'm currently trying to create a report using Crystal Reports that comes with Visual Studio 2008.

I would like to include a field of type boolean on my report that shows a string rather than true or false. The string should contain either contain a € or a % sign.

How would I go about doing this in the Formula Workshop?

I've tried things like e.g.

if {tblAankoopDetails.SoortKorting} = true then "€" else "%"

However this never seems to work and results in warnings such as "The formula result must be a number".

This should be fairly simple but this is my first go at using Cryst开发者_如何学Pythonal Reports.

Help would be much appreciated.

Jay

Make sure your SoortKorting field has always true or false. Maybe there's a null and in that case your formula will not work.

Try with this:

if isnull({tblAankoopDetails.SoortKorting}  ) then 
" "
else
    if {tblAankoopDetails.SoortKorting} =true 
    then "€" else "%"

Make sure there is nothing else in the same formula. Usually I see that particular error when a formula sometimes returns a string, and sometimes a number.

Also, you shouldn't need to test for true, so you might try:

if {tblAankoopDetails.SoortKorting} then "€" else "%"