Unable to remove objects

BlitzMax Forums/BlitzMax Beginners Area/Unable to remove objects

Volker

(Posted 2008) [#1]

I have already posted this in the forum for Brucey's modules, but got not answer, so I want to give it a last try asking here and
hoping for more readers.

The problem is that I can't remove objects from a list
after saving and loading the list with the persistence.mod.
Clearing the list with "list.clear" works. But no chance
with "remove" or "=NULL".

SuperStrict
Import BaH.persistence

Local alien:TAlien = New TAlien ' create one object in TAlien.list

' save TAlien.list
Local tp:TPersist = New TPersist
tp.SerializeToFile(TAlien.list, "TAlienlist.txt")
' Clear the list
TAlien.list.Clear

' reload the list
tp.DeSerializeFromFile("TAlienlist.txt")

For Local toclear:TAlien = EachIn TAlien.list ' remove all objects in list
'	toclear = Null ' does not work 
	 toclear.remove 'does not work although
Next

' TAlien.list.Clear() ' this works and removes all objects.. 
DebugLog ("Listsize TAlienlist:" + TAlien.list.Count()) ' =1 (there is always one object left)

Type TAlien
	Global list:TList = New TList
	Field link:TLink
	'
	Method New()
		link = list.AddLast(Self)
	End Method
	'
	Method Remove()
		link.Remove()
	End Method
End Type

Brucey

(Posted 2008) [#2]

sorry...

this seems to work :

For Local toclear:TAlien = EachIn TAlien.list ' remove all objects in list
	TAlien.list.remove(toclear)
Next

Volker

(Posted 2008) [#3]

Yeah! Works.
I hope I do not have to understand why this works and the
other ways not..