Provide the option for users to expand/collapse all rows

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Duplicated

Last Updated: 05 Feb 2026 12:00 by ADMIN

Enzo

Created on: 04 Dec 2024 20:01

Category: UI for Blazor

Type: Feature Request

Provide the option for users to expand/collapse all rows

On a grid grouped by one or more fields, provide an option for end users to expand/collapse all rows at will. The following image is a suggestion of where this option (most likely a button) should appear:

Duplicated

This item is a duplicate of an already existing item. You can find the original item here:

blazor Grid Grouping Expand/Collapse All

3 comments

ADMIN

Dimo

Posted on: 05 Feb 2026 12:00

Hello Kees,

I must confirm that the header cell of the group column is not accessible in any way via public Telerik API.

A possible workaround is to render a button above the Grid and position it with CSS, so that it looks inside that cell. Depending on the overall page layout and Grid configuration, this may not be a robust solution, so a button in the Grid ToolBar may be a simpler and more reliable approach.

Regards,
Dimo
Progress Telerik

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Kees

Posted on: 04 Feb 2026 12:08

Is there a way to add a button to that space programmatically? I can't find anything to access that th/tr element.

The issue in the feedback portal has been in an unplanned state for 3 years, so I don't expect an update soon and want to create a workaround.

Kind regards,
Kees Alderliesten

ADMIN

Tsvetomir

Posted on: 05 Dec 2024 08:28

Hello Enzo,

Thank you for the provided screenshot.

A feature request for the desired functionality is already been logged in our public feedback portal: blazor Grid Grouping Expand/Collapse All. With that in mind, I'm changing this item status to "Duplicated".

In the meantime, a possible alternative is to control collapse/expand groups through the Grid State. An example of the approach you can see in our KB article: Collapse Grid Groups by Default.

Also, you can subscribe to the item to get notified via email for any status changes.

Regards,
Tsvetomir
Progress Telerik

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