AncestryChanged

Event of:

Description:

Fires when the Instance/Parent property of the object or one of its ancestors is changed.

This event includes two parameters, child and parent. Child refers to the Instance whose Instance/Parent was actually changed. Parent refers to this Instance’s new Instance/Parent.

A common use for this function is detecting when an object has been removed or destroyed (using Instance/Destroy). This is done by checking if the parent has been set to nil. For example:

object.AncestryChanged:Connect(function(_, parent)
	if not parent then
		print("object destroyed!")
	end
end)

Parameters

Name	Type	Default	Description
Name child	Type Instance	Default	Summary The `Instance` whose `Instance/Parent` has been changed.
Name parent	Type Instance	Default	Summary The new `Instance/Parent` of the `Instance` whose `Instance/Parent` was changed.

Code Samples

Instance.AncestryChanged

The below example would print “Part is now a child of Model”.

local p = Instance.new("Part")
p.Parent = game.Workspace
p.AncestryChanged:Connect(function(child, parent)
    print(child.Name.." is now a child of "..parent.Name)
end)
p.Parent = Workspace.Model