TreeItem.next | LuaRT free and open source Windows programming framework for Lua

TreeItem.next readonly property

Retrieves the next sibling item after the TreeItem

This property returns the next sibling TreeItem or nil if there is none.

Example


local ui = require "ui"

-- create a fixed Window
local win = ui.Window("TreeItem.next sample", 320, 220)

local tree = ui.Tree(win, {"TreeItem1", "TreeItem2", "TreeItem3"}, 60, 40, 200, 160)
tree.selected = tree.items["TreeItem1"]
tree.selected.subitems = {"SubItem1", "SubItem2"}

ui.Button(win, "Next", 76, 10).onClick = function (self)
  local next = tree.selected.next
  if next then
    tree.selected = next
  end
end

ui.Button(win, "Previous", 156, 10).onClick = function (self)
  local prev = tree.selected.previous
  if prev then
    tree.selected = prev
  end
end

ui.run(win):wait()