TreeList.scrollToNode

Syntax

scrollToNode (treeNode: PP.Ui.TreeNode, bottom: Boolean);

Parameters

treeNode. Node to which the tree is scrolled.

bottom. Determines if it should be placed at the bottom. If this parameter is set to true the node is not placed at the bottom of the tree. By default this property is set to false.

Description

The scrollToNode method scrolls the tree down to a specified node.

Example

To execute this example, the page must contain the TreeList component named treeListSett (see an example of the TreeList.NodeUnHovered event). Decrease tree height, expand its nodes, and scroll the tree down to the node with the index:

treeList.setHeight(50); //decrease tree height
treeList.setExpandedByKeys(["n1", "n2"]); //expand indicated nodes
treeList.scrollToNode(treeList.getAllNodes(true)[1], true); //scroll the tree down to the indicated node (indicated node is moved to the bottom of the tree as much as possible)
treeList.setHoveredNode(treeList.getVisibleNodes()[1]); //cursor is over the last node
console.log(treeList.getVisibleNodesCount());//show a number of selected nodes to the console

After executing the example the component looks like follows:

Browser console shows the value 2.45 - the number of visible nodes.