# OnClientNodeDragging

The **OnClientNodeDragging** client-side event is called each time the user moves the mouse while dragging a node. Note: You can use this event to change the mouse cursor so that user knows where they can drag a node, i.e. only over a grid, editor or another **TreeView**, etc.

The event handler receives parameters:

1. The **TreeView** instance that fired the event.

2. Event arguments with functions:

* **get_node()** retrieves a reference to the clicked on node.

* **get_htmlElement()** retrieves the html element on which the mouse is over.

* **get_domEvent()** retrieves the browser event.

* **set_cancel()**- call this function to specify whether the event should be canceled (true) or not (false).

* **get_sourceNodes()** returns an array of all the nodes being dragged (Useful when **MultipleSelect** is *True*).

The example below demonstrates getting the current x and y coordinates of the mouse while the node is being dragged.

```ASPNET
<telerik:RadTreeView RenderMode="Lightweight" ID="RadTreeView1" 
                     runat="server" 
                     EnableDragAndDrop="True" 
                     OnClientNodeDragging="ClientNodeDragging">
</telerik:RadTreeView>
```

```JavaScript
function ClientNodeDragging(sender, eventArgs) {
	var domEvent = eventArgs.get_domEvent();
	var node = eventArgs.get_node();

	node.set_text("Dragging X:" + domEvent.offsetX + " Y:" + domEvent.offsetY);
}
```

## See Also

* [OnClientNodeDragStart](https://www.telerik.com/products/aspnet-ajax/documentation/controls/treeview/client-side-programming/events/onclientnodedragstart)

* [OnClientNodeDropped](https://www.telerik.com/products/aspnet-ajax/documentation/controls/treeview/client-side-programming/events/onclientnodedropped)

* [OnClientNodeDropping](https://www.telerik.com/products/aspnet-ajax/documentation/controls/treeview/client-side-programming/events/onclientnodedropping)

* [RadTreeNode](https://www.telerik.com/products/aspnet-ajax/documentation/controls/treeview/client-side-programming/objects/radtreenode)