Nested newslists

Stefan Eriksson

Vote:

I have two newslist that are nested, one newslist in an other.



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I need to add a filter to List2 but where/how should I do that? The followinf dosn't work:


private void InitializeComponent()
{
  this.List2.Filter += new EPoServer.WebControls.FilterEventHandler(List2_Filter);
}

"Object reference not set to an instance of an object." /Stefan

#12759

Aug 29, 2006 10:04

Øyvind Hognestad

Vote:

You will get the "Object reference not set to an instance of an object." because the list2 exists inside another list (inside a template control and can not be accessed directly). If you want to filter this, you need to do a recursive FindControl (list1.FindControl("list2")) and then filter the control found. Another way to do this is to filter your datasource for list2. Have the pagereference as the parameter to the metod and make a codebehind method with a pagedatacollection with you add a filter on.



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For adding a filter to a pagedatacollection, see the FAQ in the support section on www.episerver.com or take a look at this:


FilterSort sort = new FilterSort(FilterSortOrder.Alphabetical);
sort.Filter(null, new FilterEventArgs(col));

/Øyvind

#14850

Sep 12, 2006 13:03