Basalt/docs/objects/Treeview/isExpanded.md

isExpanded

Description

The isExpanded method returns the current expanded state of a specified node within a Treeview object. If a node is expanded, its children nodes are displayed. If a node is collapsed, its children nodes are hidden.

Returns

1. boolean The expanded state of the node (true for expanded, false for collapsed)

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")

rootNode.setExpanded(true)

if rootNode.isExpanded() then
  basalt.debug("The root node is expanded.")
else
  basalt.debug("The root node is not expanded.")
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 setExpanded method is then used to set the expanded state of the root node to true. The isExpanded method is used to check if the root node is expanded and display the result using basalt.debug.