Hi,

It would be great if it was possible to use templates with an expansionpanel. In my case would like to add an icon preceeding the title of the expansionpanel. Template support would be great as it adds more flexibility.

KR,
Ron

Bug report
Еxpanding/collapsing nested panels collapse the parent panel as well

Reproduction of the problem

Can be replicated in the following Dojo:

https://dojo.telerik.com/EboZUXif

Current behavior
Collapsing or expanding a nested panel collapses/expands the parent panel

Expected/desired behavior
Collapsing/expanding the child panel shall not collapse/expand the parent

Environment
Kendo UI version: 2021.1.119
Browser: [all]

Bug report

When a Kendo UI ExpansionPanel is nested within another, and the initial expanded configuration is set to false, the panel will not open the first time it is attempted. When the widget is initialized, it searches for all expand icons in the expander's wrapping element, which in this case would include the icons of the inner expanders. Thus, when a user clicks on an outer one, you also affect the inner ones.

Reproduction of the problem

1. Go to this Progress Kendo UI Dojo.
2. Expand the main panel.
3. Expand a child panel.

Current behavior

The Kendo UI ExpansionPanels do not open the first time clicked.

Expected/desired behavior

The inner expansionPanels should open as expected.

Environment

• Kendo UI version: 2024.1.319
• jQuery version: All supported versions
• Browser: all

Can be reproduced in the official demo: https://demos.telerik.com/kendo-ui/expansionpanel/api

1. Click on "Expand"

2. Try to Collapse by clicking on the Panel

-> Panel does not collapse, but gives a short animation and expands again.