RadzenGrid filtering modes: Can I edit Checkboxlist dropdown?

In RadzenGrid, Checkbox list filter mode is almost what I need for my use case. It'd be perfect if I could somehow add a label here where the red square is:

Would it be somehow possible for me to do this? Perhaps with an attribute I'm not aware of or something else?

There is no way to do that however you can create your own FilterTemplate with desired UI.

Thanks, are there any guides or references on how to create custom filters with dynamic data? I was checking the radzen component docs and the one showcased is not with dynamic data

We don’t have a demo for custom filters with dynamic data however you can extend the dynamic data demo.

What would be the correct @bind-Value in the case of dynamic data? @context[@column.Key]?

In the filter template demo I noticed the simple checkbox column (customer) shows all possible values regardless of the filter state. So for instance if I first filter by another column and now I expect the elements inside the checkbox dropdown to be a subset of all the data.

Without filter template (using checkboxlist) it works as I expected it (taking into account other filters)

Is there any way to have this behavior in FIlterTemplate somehow?

Since it’s just a demo you can extend it in the way you want. Use LoadColumnFilterData event to load whatever list you need.