Displaying A Date Prompt (Range) In Page Header

I inserted a date prompt (range) into a "Page Header" of a "Crystal Reports", but when I refreshed the report, the date prompt did not display in the "Page Header". What am I doing wrong ?Never mind, I found a solution. Below is the solution . . .

"From: " + ToText ( Minimum ( {?Prompt_Date} ) ) +
" To: " + ToText ( Maximum ( {?Prompt_Date} ) )