Create two text objects, and use Print When statements to determine which one is visible. Format each one accordingly:

Text Object 1, formatted as Arial 10 Bold (and perhaps red color)
Print When youvariable<0

Text Object 2, formatted as Arial 10
Print When yourvariable>=0

Place the text objects on top of each other so they always print in the same position on the page.

>hi Erick,
>
>it's textbox, but inside Report Designer, which doesn't have methode even.
>
>I want to change the font style from 'Arial,10,N,0' to 'Arial,10,B,0' for certain condition (such as negative balance).
>
>thanks for the help.
>
>regards,
>
>Jerry