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c# - Usage of Server Side Controls in MVC Frame work -

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i using asp.net 4.0 , mvc 2.0 web application. project requiremrnt have use server side control in application not possibl in noraml case. ideally want use adrotator control , datalist control. i saw few samples , references in codepleax mvc controllib howwver found less useful. can tell how utilize theese controls in asp.net application along mvc. note: please provide functionalities related adrotator , datalist controls not equivalent functionalities thanks in advace. mvc pages not use normal .net solution makes use of normal .net components impossible. a normal .net page use event driven solution call different methods service side mvc use actions , view completly different way handle things. also, mvc not use viewstate normal .net controlls require. found article discussing mixing of normal .net , mvc.
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java - Access protection/synchronization for heavily read but rarely modified collection? -

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lets i've got simple map queried frequently, modified. using synchronized blocks protect against race conditions when adding map (simplified example):

public class myrepository {      private static hashmap<integer, object> map = new hashmap<integer, object>();      public static object getinstance(integer key) {         synchronized (map) {             return map.get(key);         }     }      public static void addinstance(integer key, object instance) {         synchronized (map) {             map.put(key, instance);         }     }  }

i left out application specific crap dealing key collisions etc. picture, simple. during runtime, map filled instances when application starts up. after map ever modified (once in blue moon, say). on other hand, map queried quite often, , multiple threads querying map blocking each other.

is there protection mechanism allows multiple "readers" hold of map concurrently while still allwing 1 "writer" @ time?

have looked ad concurrenthashmap jdk 5? meant usecase


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