SearchResultCollection的GetDirectoryEntry是否必须再次查询ActiveDirectory?[目录服务/.net]

在.NET中使用DirectorySearcher的findall()方法时,searchResultCollection的getDirectoryEntry()方法是否需要另一次到Active Directory的访问?例如。。。。

Dim src As SearchResultCollection
Dim ds As New DirectorySearcher
' code to setup DirectorySearcher


' go to Active Directory and fill collection with results
src = ds.FindAll()

'...later on in code or whatever
' does the next line of code require another trip to Active Directory?
Dim de As DirectoryEntry = src.item(0).GetDirectoryEntry()