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https://issues.apache.org/jira/browse/WICKET-5170?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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vineet semwal updated WICKET-5170:
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Description:
Hi,
currently the only way to add new items at any index(apart from last) is
removing all children and then adding/recreating new children ,this might be ok
for listview/dataview since the ideal way of using them is to reconstruct at
render ,this though ok for them but will not be good for a repeater whose size
is big/growing . fortunately markupcontainer provides everything to introduce
a method like add(index,component) which will have functionality like
List#add(index,element).
the advantages of introducing this method will be in places like an infinite
scroll repeater which can prevent the growing size by removing elements at
start/end depending on scroll position and later can add the items back at
start or end .
was:
Hi,
currently the only way to add new items at any index is removing all children
and then adding/recreating new children ,this might be ok for listview/dataview
since the ideal way of using them is to reconstruct at render ,this though ok
for them but will not be good for a repeater whose size is big/growing .
fortunately markupcontainer provides everything to introduce a method like
add(index,component) which will have functionality like
List#add(index,element).
the advantages of introducing this method will be in places like an infinite
scroll repeater which can prevent the growing size by removing elements at
start/end depending on scroll position and later can add the items back at
start or end .
> introduce add(index,Component) in MarkupContainer
> --------------------------------------------------
>
> Key: WICKET-5170
> URL: https://issues.apache.org/jira/browse/WICKET-5170
> Project: Wicket
> Issue Type: New Feature
> Reporter: vineet semwal
> Labels: wicket
> Attachments: fix-WICKET-MC.patch
>
>
> Hi,
> currently the only way to add new items at any index(apart from last) is
> removing all children and then adding/recreating new children ,this might be
> ok for listview/dataview since the ideal way of using them is to reconstruct
> at render ,this though ok for them but will not be good for a repeater whose
> size is big/growing . fortunately markupcontainer provides everything to
> introduce a method like add(index,component) which will have functionality
> like List#add(index,element).
> the advantages of introducing this method will be in places like an infinite
> scroll repeater which can prevent the growing size by removing elements at
> start/end depending on scroll position and later can add the items back at
> start or end .
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