Custom Syncfusion Grid in Blazor

I need to create a custom SfGrid, so I made a class CustomGrid that inherits SfGrid :

public class CustomGrid<T> : SfGrid<T>{...}

How can I tap into GridEvents.OnActionBegin to execute some code ? I tried this but you can't assign a function to an EventCallback

protected override async Task OnAfterRenderAsync(bool firstRender){    if (firstRender)    {        GridEvents.OnActionBegin += ActionHandler;    }    await base.OnAfterRenderAsync(firstRender);}public async Task ActionHandler(ActionEventArgs<T> Args){    if (Args.RequestType == Syncfusion.Blazor.Grids.Action.Sorting)    {        Console.WriteLinte("Sorting");    }}