实验性
Optional properties for Dropdown property item
可选
Initial enabled state of property item. If undefined, it will default to true.
List of dropdown entries associated with the property item. If undefined, list will be empty.
If true label text will be hidden. It will be visible by default.
This callback is called when UI control value is changed.
Localized title of the property item.
Tooltip description of the property item.
Initial visibility state of property item. If undefined, it will default to true.
Optional properties for Dropdown property item