GridCheckboxColumn does not have HeaderTemplate / Template

[Claudio]

I can't find a way to customize the GridCheckboxColumn element.

GridColumn have a Template element but seem not applicable to GridCheckboxColumn.

My goal is to add a clickable icon next to selection check in the header.

How to solve?

Thanks

[Marin Bratanov]

Hello Claudio,

You can Follow the implementation of a header template for the selection column here: https://feedback.telerik.com/blazor/1497026-add-headertemplate-for-the-gridcheckboxcolumn.

In the meantime you could implement this through a "regular" grid column where you will have a header template, and for the selection checkbox you can use the approach of custom selection checkbox youcan find in this thread (you don't need the row template): https://feedback.telerik.com/blazor/1463819-grid-row-template-with-selection-unsure-how-to-bind-to-selected-item

Regards,
Marin Bratanov
Progress Telerik