Declarative programming allows you to define the UI within the HTML document as elements.
Deprecated as of UI5 version 1.120, replaced by XML View.
For this, OpenUI5 provides the sap.ui.core.plugin.DeclarativeSupport
plugin that can be included either as required or marked as a module in the initial bootstrap script tag. The plugin parses the document and converts its tags with special attributes into OpenUI5 controls.
Declarative support is aware of properties, associations, events, and aggregations in a OpenUI5 control manner. This means that you can specify them within the markup of the HTML document either as data attributes or as child elements.
The following sections provide an overview of the declarative support and introduce the use of declarative support in OpenUI5.
The following example shows the concept by combining a sap.m.input
with a sap.m.Button
control. When you click the button, the value of the text field is displayed in an alert box:
<!Doctype HTML>
<html>
<head>
<title>Declarative Programming for SAPUI5 - sample01</title>
<script id="sap-ui-bootstrap"
type="text/javascript"
src="resources/sap-ui-core.js"
data-sap-ui-theme="sap_horizon"
data-sap-ui-libs="sap.m"
data-sap-ui-modules="sap.ui.core.plugin.DeclarativeSupport"
>
</script>
</head>
<body class="sapUiBody">
<div data-sap-ui-type="sap.m.Input" id="message" class="my-button" data-value="Hello World"></div>
<div data-sap-ui-type="sap.m.Button" data-text="Click me!" data-press="handlePress"></div>
</body>
</html>
The table summarizes the attributes used by declarative support and gives examples.
Attribute |
Description |
Example |
---|---|---|
|
Type of control |
|
|
Defines the aggregation that shall be used for the element or child element |
|
|
Sets or overrides the default aggregation of a control |
|
|
Defines the ID property of a control |
|
|
Adds a style class to the control |
|