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SKSujith Kumar Rajkumar Syncfusion Team September 24, 2021 11:53 AM UTC
Hi Paul,
Greetings from Syncfusion support.
Based on the provided information we would like to inform you that the spanning support is not available for the Grid column headers. And for this scenario we have provided the stacked headers support in the Grid and so if you need to achieve this requirement then we suggest you to use the stacked header approach to achieve the same.
More details on this can be checked in the below links,
We would also like to inform you that row and column spanning support is available for the Grid content and you can also utilize this based on the requirement. More details on this can be checked in the below links,