Hi Paulo,
Thanks for your interest in Syncfusion Products.
To enable the arrow key operations in grid where selection is handled programmatically, you need to activate the respective cell. Using the following code, this can be achieved.
gridControl1.Select();
gridControl1.Selections.SelectRange( GridRangeInfo.Cell(2, 2), true);
gridControl1.CurrentCell.Activate(2, 2); //This method will activate the specified cell on keyPressed event
Here is a sample for your reference.
http://www.syncfusion.com/uploads/redirect.aspx?&team=support&file=KeyBoardActivation-1964978101.zipRegards,
Arulraj