When using a Perspective table, when you select a row, it's index is indicated in the selectedRow property. I can find no way to programmatically deselect the row. You can easily change the selected row by changing the value of selectedRow, therefore I would think setting the selected row property to null (or None) would do the trick. It would be nice if this were the case. Additionally, a way to clear all of the selected rows in multiple interval mode would be nice.