Basalt/docs/objects/Treeview/onSelectNode.md

onSelect

Description

The onSelect event is triggered when a node within a Treeview object is clicked or selected by the user. This event allows you to define custom behavior or actions that should be executed when the node is selected.

Parameters

1. function The callback function that will be executed when the node is selected. This function receives one argument:
   • node: The node that was selected.

Returns

1. node The node in use

Usage

• Creates a Treeview, adds a child node to the root node, and checks if the root node is expanded:

local basalt = require("basalt")

local mainFrame = basalt.createFrame()
local treeview = mainFrame:addTreeview()

local rootNode = treeview:getRoot()
local childNode = rootNode.addChild("Child Node")

childNode.onSelect(function(node)
  basalt.debug("Node selected:", node.getText())
end)

basalt.autoUpdate()

In this example, a Treeview object is created and added to the mainFrame. The getRoot method is used to access the root node, and a new child node is added to it using the addChild method. The onSelect event is then assigned to the child node with a callback function that will display the text of the selected node using basalt.debug when the node is clicked or selected.