button add title tag ?

Hi Won,

Thanks for providing screenshots.

To reach this scenario you should add the "attributes" configuration to the current item, in your scenario, this is the button. And in the attributes configuration you could set the "title" to the needed value:

items: [
              { type: "button", text: "Button", attributes:{"title":"data refresh"}},
]

To demonstrate I prepared a sample dojo example.

Let me know if you have additional questions.

Regards,
Lyuboslav
Progress Telerik