[Solved] Confirmation message in custom button in the grid

[Vitalii]

Hi all
I have custom button in ToolBar. This button call deleteAllData action in controller. I want have confirmation message, what ask users "You delete all data. You really want delete all data"

[Dadv]

this?
toolbar.Custom().HtmlAttributes(new {@onclick="return confirm('You delete all data. You really want delete all data');"});

[Vitalii]

Thank you! it's really work