My form includes a table of image files. Descriptive detail is shown for each as I navigate through the records, one "imageID" to another; however, no image is displayed here -- just the textual description. Without looking at MS Explorer to see if the listed image is indeed present, this code verifies that, at least, the file is in said folder via radio button, "optButtonIsPresent".

    [note: optButtonIsPresent is bound to boolean TableField, BOfileIsPresent]
   =(IIF 0 < len(dir(STRdirectoryANDfilename.ext)), BOfileIsPresent = TRUE, BOfileIsPresent = FALSE)

I notice that I seem not able to designate this code directly in the boolean object's ControlSource property's grid; and yet, it functions normally when placed in the Form's On Current event which seems to fire as I navigate record-to-record.

This Status Quo is fine as is, but can you advise me if my "On Current" strategy is the best practice? Thanks.