need expression for the field if there is no data

hello, how can I write an expression in the field which is a dollar amount valueif there is a data in the database its showing the amount in the field if not its hiding the entire table how can I show the table if there is no dollar amount in the field like $0I tried this but its not working.Note: I used table for this...=iif(Fields!AMOUNT.Value) = 0 ,"$ 0",(Fields!AMOUNT.Value)