Gridview iqueryable add, edit, delete

Hello to all,

Recently i noticed that when the gridview is binded with observablecollection, events like add, edit or delete can fired when user press keys on the keyboard or sent gridview commands, this not seems to be happening when gridview is binded with iqueryable.

So is there any way to simulate the observablecollection class behavior to iquerable and implement the add, edit, delele functions without creating my own separate functions and call them on keypress?