You just need a .razor file where you can declare desired component and specify from which component inherits. Similar example (no declaration, just overrides) can be found in DataFilter demos:
I have created a new component that inherits from RadzenDataGrid called AnchorRadzenDataGrid. One reason I wanted to wrap the DataGrid was to automatically save and load settings internally in the new AnchorRadzenDataGrid component for all my grids that use the new AnchorRadzenDataGrid component. However I'm not sure how to use the @bind-Settings="@Settings" inside the new component where I inherits the RadzenDataGrid. Can you show an example on how this can be done, if possible?