Questions on UI for Blazor Forum

I have a custom component (SearchRow) that is bound to a custom SearchParameter class. SearchParameter has IEnumerables for Fields ("Width", etc) and Operations ("Less than") as well as user-entered values. The idea being you'd select a field, an operation and enter a comparison value and that will all get passed to a service for a custom search against the database. I want to create a search bar that will be a user-addable (user clicks "Add Parameter" and a new row shows up) list of SearchRows bound to a collection of SearchParameters. Honestly I want it to look a lot like the Filter control but it seems like the Filter control is meant to act against a set of already-loaded data in a grid and I can't do that here as the searchable dataset is huge and I have to use the SearchParameter data to convert that into custom sql.

Is the best way to do this to have a Grid in edit mode with a single column consisting of my SearchRow component and add to them and bind to them using OnRead?

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