Do you have to write all the subfile code and attach?

[Profound Logic]

Question:
Do you have to write all the subfile code, and then attach it to a grid, or can you define the grid directly over a set of data?

Answer:
Yes, you can. Writing your own subfile code will give you more control, but you can also bind the grid directly to a database file! This option supports virtual rendering, where the data is not actually accessed on the backend until it comes into view. So, the user could literally be scrolling through millions of records with this option.