The Tree component for React represents a Tree widget that displays a hierarchical collection of items. You can populate it from 'UL' or by using its 'source' property.
Refer to React Getting Started before you start with this help topic.
The Tree component for React requires the following imports.
Then we create our component class. Properties and methods are put as React props.
Finally we render our class in the desired HTML element:
In order to bind to any event, change any property or call any method, we need a reference to the component.
For that we use the React "ref" Callback Attribute:
Now, when we have a reference, we need to call the desired event/property/method.
This is done in the componentDidMount() React Component Lifecycle method.
The checkChange event is triggered when the user checks, unchecks or the checkbox is in indeterminate state.
The following example demonstrates how to add an event listener:
This is how you call methods & props:
Every component have a method setOptions which accepts a object as an argument. This object contains component settings.
Every component also have a method getOptions which returns a object containing the component settings.
The following example demonstrates how to create a Tree component.
The following example demonstrates how to disable the Tree component.