WINDEV Mobile Concepts

Part 3: Databases 53 Binding controls to data A window can display information from: • a database: controls are directly bound to the items in the data files or queries available in the database. • variables in the application’s WLanguage code (variables global to the window or to the project or parameters passed to the window). To display information in a window, the controls in the window must be bound to: • the different items in the database. • the available WLanguage variables. There are multiple methods to display and update values from a data source: • The binding between a control and an item or variable can be defined in the window editor, in the control description ("Binding" tab). • ScreenToFile updates the record or the variable with the values from the UI. • FileToScreen updates the data in the UI with the values from the data file or variable. Control - item binding ScreenToFile FileToScreen Database