Developer Documentation

Webforms data-binding is a query language that is a variation of SQL as understood by SQLite.

Data-binding expressions must be entered between braces ({}).

Control properties are accessed in data-binding expressions using the control-name.control-property syntax.

Webforms data-binding (just like the rest of the form markup language) is statically-typed and recognizes several predefined data types. Query statements must be type-correct, which is assessed during form compilation. Implicit type coercion only happens between integers and floats, so for example a statement that attempts to concatenate a string-type value with an integer one will always throw a compilation error.

There are a number of scalar data types: int, float, string, boolean, and dtl.

The following composite data types exist: record, recordset, and rowset.