>I've defined a UDF as a method in a form which will run a report, the UDF will be called from the report field expression, it can work in preview(REPORT FORM PREVIEW) but couldn't work when send to printer(REPORT FORM TO PRINTER), instead of printing the correct figure, it print the format string.(eg. 9,999,999.99).
>
>If I create a variable in report writer, the expression of the variable is the UDF, when I used the variable with some calculation, an error message "Data type miss match" will be given when running the report.
>
>Please help.
>Any body can help, thanks in advance.


Is the UDF you are calling a method in a class? If this is the case take it out and make it a procedure in a separate program. The report writer does not return values from a method propertly. HTH
GeneS