I have create a paramteried Field, which asks for the date range (Start and End date) of the data to display. This Parameter field is used in the Selection Expert. Everything works

 

Now I want to display the values from the paramter field in the report header. The user shall read: The report contains data from 01/01/2005 to 09/03/2006.

 

Therefor I have created this formula:

 

Join (ToText({?ParameterField}), "to ")

 

It does not work. I get an error message that a number, date... is required. Any Ideas?

 

Cheers!