How to communicate between ASP.net custom controls -

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i'm using 2 custom controls. 1 gathers criteria search, , other displays list. these 2 controls need remain seperate time being.

what best method of transfering data search control, list control?

i'm thinking of viewstate, session or wrapping both within updatepanel , using custom events??

maybe can create delegate , event pass list of searchvalues? way can add or multiple display controls in case ever becomes necessary.

note quick sample code should optimized/improved.

public class searchcontrol {     public delegate void searcheventhandler(object sender, dictionary<string, string> searchvalues);     public event searcheventhandler onsearch;      public searchcontrol()     {         btnsearch.click += new eventhandler(search);     }      protected void search(object sender, eventargs e)     {         if (onsearch != null)         {             dictionary<string, string> searchvalues = new dictionary<string, string>();             searchvalues.add("name", "john");             searchvalues.add("age", "24");              onsearch(this, searchvalues);         }     } }  public class displaycontrol {     public void showresults(dictionary<string, string> searchvalues)     {         // logic here...     } }  public class yourwebpage {     searchcontrol searcher = new searchcontrol();     displaycontrol displayer = new displaycontrol();      public yourwebpage()     {         searcher.onsearch += new searchcontrol.searcheventhandler(searcher_onsearch);     }      public void searcher_onsearch(object sender, dictionary<string, string> searchvalues)     {         displayer.showresults(searchvalues);     } }

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