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copied!<p>Looping is not a good idea. I'm going to analyze that guy's code:</p> <pre><code>objGroupEntry = sr.GetDirectoryEntry(); dso = new DirectorySearcher(objGroupEntry); dso.ClientTimeout = TimeSpan.FromSeconds(30); dso.PropertiesToLoad.Add("physicalDeliveryOfficeName"); dso.PropertiesToLoad.Add("otherFacsimileTelephoneNumber"); dso.PropertiesToLoad.Add("otherTelephone"); dso.PropertiesToLoad.Add("postalCode"); dso.PropertiesToLoad.Add("postOfficeBox"); dso.PropertiesToLoad.Add("streetAddress"); dso.PropertiesToLoad.Add("distinguishedName"); dso.SearchScope = SearchScope.OneLevel; dso.Filter = "(&(objectClass=top)(objectClass=person)(objectClass=organizationalPerson)(objectClass=user))"; dso.PropertyNamesOnly = false; SearchResult pResult = dso.FindOne(); if (pResult != null) { offEntry = pResult.GetDirectoryEntry(); foreach (PropertyValueCollection o in offEntry.Properties) { this.Controls.Add(new LiteralControl(o.PropertyName + " = " + o.Value.ToString() + "<br/>")); } } </code></pre> <p>I don't know why he's doing two searches, but let's assume there's a good reason. He should have gotten those properties from the <code>SearchResult</code>, not from the return value of <code>pResult.GetDirectoryEntry</code>, because its a completely new object.</p> <pre><code>string postalCode = pResult.Properties["postalCode"][0] as string; List<string> otherTelephones = new List<string>(); foreach(string otherTelephone in pResult.Properties["otherTelephone"]) { otherTelephones.Add(otherTelephone); } </code></pre> <p>If you insist on getting the <code>DirectoryEntry</code>, then ask for all of the properties at once with <a href="http://msdn.microsoft.com/en-us/library/system.directoryservices.directoryentry.refreshcache.aspx" rel="nofollow"><code>RefreshCache</code></a>:</p> <pre><code>offEntry = pResult.GetDirectoryEntry(); offEntry.RefreshCache(propertyNameArray); </code></pre> <p>If none of that helps, look at your filters and see if you can use the <code>BaseLevel</code> scope.</p>

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