I'm needing an example for creating an inline-editable grid that consists of a transaction (parent) and items in that transaction (children). Upon accessing the grid, it should be empty as this is a new transaction. Because it is new, the transaction will need to be created and then the items will be added and displayed on the grid. Once the user has added all necessary items, they click save to submit the new transaction and it's items.
I was able to create the grid, but could never link child with parent. I spent some time with this example here (http://demos.telerik.com/aspnet-core/grid/foreignkeycolumn), but it assumes that the parent (Categories) listing already exists, whereas I need to create the parent and children together.