The background of the image shows the Attributes page of the overview editor for a binding element named Customers. Various attributes are defined in the page, with the Zip Code attribute in focus and a UI hint definition that sets the label property value to “Zip Code” and the tool tip property value to “The zip code needs 5 digits (eg. 98101) or a “zip+4” code (eg. 98101-1234). The foreground of the image shows a runtime view of an integrated Excel workbook where the previously-defined attribute control hint tooltip property appears to the user when the user hovers over the Zip Code column in Excel.