clearButton Boolean (default: true)

Unless this option is set to false, a button will appear when hovering the widget. Clicking that button will reset the widget's value and will trigger the change event.

Example - disable the clear button

<input id="dropdowntree"/>

    dataSource: [{ text: "item1", value: 1 }, { text: "item2", value: 2 }],
    clearButton: false
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