It is very rare that you can get the filtered data from a grid. Perhaps our jQuery grid is the only exception because its data source is an entirely separate component that does the actual filtering and data operations with the data and the grid uses it and just passes parameters to it.
Perhaps you would be able to achieve this in Blazor when either (or both) of the following are implemented:
At the moment you can hook up the OnRead event to implement all operations with your own code and this will let you store the current filter settings so you can apply them.
That said, what is the purpose of getting the filtered data from the grid? The grid's goal is to show it to the user and that's already available, and the only other use cases I can think of are exporting and state persistence. Am I missing something?
UI for Blazor