read asp.net cache contents

 HI with the code below,  I can ge the KEY used to identify the item in the cache
Dim keys As New ArrayList
 Dim enumerator As IDictionaryEnumerator = P.Cache.GetEnumerator()
While enumerator.MoveNext()
    keys.Add(enumerator.Key.ToString())
 End While


QUESTION: Is there anyway to get the KB data size of each key item? I know I can get the cache value, not interested in that, need to know the Memory size in kB for each key, any ideas??



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