The click handler of the toolbar command which is used for custom toolbar commands.
A class name that will be rendered inside the Toolbar button. If
toolbar-toolbar-item-image-class is set, the TreeList renders an additional
span element inside the Toolbar button having its
class name set to the
option value. This setting enables you to display an icon inside your custom toolbar commands.
The name of the toolbar command. The TreeList outputs the
name in the HTML as a value of the
data-command attribute of the button.
The supported values are:
- A custom string
The text that is displayed by the command button. If
toolbar-toolbar-item-text is not set, the TreeList will use the
name option as the button text instead.