Bug report

The DropDownTree validation error message appears when the widget gets opened. The message appears before the user is able to select an item. The behavior is not consistent with the validation of the rest of the widgets, such as DropDownList, for example.

Reproduction of the problem

1. Open the Dojo example
2. Expand the DropDownTree

Scenario 2: DropDownTree in a Form - Dojo

Current behavior

The DropDownTree is validated on open, thus it is marked as invalid before the user has the possibility to select an item.

Expected/desired behavior

The validation of the DropDownList should be consistent with the rest of the widgets. It should be validated when it is focused out

Environment

• Kendo UI version: 2021.3.914
• Browser: [all ]