SAP UI5 provides a variety of data types that can be used to format, parse, and validate data. The available data types inherit from the sap.ui.model.SimpleType class ¹. Here are some of the commonly used data types in SAP UI5:
sap.ui.model.type.Integer: Used to format and validate integer values.sap.ui.model.type.Date: Used to format and validate date values.sap.ui.model.type.Currency: Used to format and validate currency values.
In addition to these simple types, it is also possible to define custom data types by creating a subclass of SimpleType and implementing the methods formatValue, parseValue, and validateValue ¹. The constructor of a simple type can accept parameters such as formatOptions and constraints.
SAP UI5 supports three types of model implementation: JSON Model, XML Model, and OData Model ². JSON Model supports data in JavaScript Object Notation format and supports two-way data binding. XML Model supports XML data and supports two-way data binding. OData Model creates OData requests and handles responses accordingly, but only supports OData compliant data.
Refer to /webapp/view/InvoicesList.view.xml
The view is defined using the MVC architecture, where the List control is the view, the ObjectListItem control is the template, and the InvoicesList controller is the controller.
The List control displays a list of items, which are bound to the Invoices model. The ObjectListItem control defines the template for each item in the list. The title property of the ObjectListItem control displays the product name and quantity of each invoice item. The number property displays the extended price of each item in the list, along with its currency. The currency is obtained from the myView model, which is defined in the controller.
The numberUnit property specifies the unit of measure for the extended price, which is also obtained from the myView model.
The code uses data binding to bind properties of controls to properties of models. The parts array in the number property specifies that two properties are bound to this control: ExtendedPrice and currency. The type property specifies that this control should use a currency formatter to format its value.
