TreeViewItemDragOverEvent

Represents the object of the onItemDragOver event (see example).

Name	Type	Description
clientX	`number`	Provides the horizontal coordinate within the client area of the application at which the event occurred (as opposed to the coordinate within the page).
clientY	`number`	Provides the vertical coordinate within the client area of the application at which the event occurred (as opposed to the coordinate within the page).
item	`any`	The item that is dragged.
itemHierarchicalIndex	`string`	The hierarchical index of the dragged item. The indices are zero-based. The first root item has a `0` (zero) index. If the first root item has children, the first child acquires a `0_0` index and the second acquires a `0_1` index.
pageX	`number`	The X (horizontal) coordinate (in pixels) at which the event occurred that is relative to the left edge of the entire document. Includes any portion of the document which is not currently visible.
pageY	`number`	The Y (vertical) coordinate (in pixels) at which the event occurred that is relative to the whole document. `pageY` observes any vertical scrolling of the page.
target	`any`	The target that is associated with the dragged item.