removed child breaks a for loop

[Glenn M]

in the following code

For Each child In nodeFarm.ChildNodes
For Each oAttribute In child.Attributes
If oAttribute.Name = "LastUpdated" Then
lastUpdate = oAttribute
End If
Next

If DateDiff(DateInterval.Day, Date.Parse(Today),
Date.Parse(lastUpdate.Value)) < 0 Then
parentnode = child.ParentNode
parentnode.RemoveChild(child)
End If
End If
Next

whenever a child is removed the loop stops and doesn't enumerate any
more children.

what have i done wrong here , should i be doing something else after
removing the child.

glenn

[Martin Honnen]

Glenn M wrote:

in the following code

For Each child In nodeFarm.ChildNodes
For Each oAttribute In child.Attributes
If oAttribute.Name = "LastUpdated" Then
lastUpdate = oAttribute
End If
Next

If DateDiff(DateInterval.Day, Date.Parse(Today),
Date.Parse(lastUpdate.Value)) < 0 Then
parentnode = child.ParentNode
parentnode.RemoveChild(child)
End If
End If
Next

whenever a child is removed the loop stops and doesn't enumerate any
more children.

what have i done wrong here , should i be doing something else after
removing the child.

DOM collections like ChildNodes are live meaning when you remove a node
from the document the collection changes directly messing up any attempt
to iterate over the collection.
It might suffice to use
while nodeFarm.HasChildNodes
set child = nodeFarm.FirstChild
instead of the for each iteration loop to avoid the problem.
--

Martin Honnen
http://JavaScript.FAQTs.com/