Data specifications mainly include automatic numbering, data lists, tree lists, drop-down lists and date pickers,
When selecting data, a specification can be single-select or multi-select, depending on the data scenario,
Drop-down lists are normally used when the selectable items are fixed and few in number,
Different form-field attributes can be given different styles, for example different background colours for easier distinction.
Attributes and configuration of business form fields Kinds of data interfaces and how to design them Designing field-value selection specifications Designing automatic numbering for business forms Defining data-interface parameters, with examples Formatting radio-button and checkbox fields Designing and using an automatic-numbering data interface Inner joins in data-table queries Left and right joins in data-table queries Configuring conditional styles for business document fields How inner, left and right joins work and what they are used for Merging equal values in a document data interface Using data interfaces in components for dynamic data sources Correcting exceptions in custom system variables Using multiple data interfaces to run business formulas in batches