EXTJS 4.1如何在树面板中选择下一个叶子节点

Question

I try to select the next leaf node of that currently selected.

For example:

• group1
  • leaf1
  • leaf2
  • leaf3
• group2
  • leaf4

The leaf2 is currently selected. When I click on a button how to unselect this node and select the next node (in this example the next node is leaf3)?

Answer 1

After getting a reference to the node that is to be removed, use the nextSibling property to get a reference to the next node, and select it.

Something like this:

var node = treePanel.getSelectionModel().getSelection()[0];

var nextNode = node.nextSibling;

if (nextNode) treePanel.getSelectionModel().select(nextNode);

Working Fiddle