System.DirectoryServices.Protocols.SearchRequest Ldap Query Execution Problem : The Official Microsoft ASP.NET Forums

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Dino He - MS...

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Re: System.DirectoryServices.Protocols.SearchRequest Ldap Query Execution Problem

Feb 13, 2012 01:02 AM|LINK
Hi

Please try this:
```
(&(samaccountname=a*)(&(displayname=a*)(!displayname=\00)))
```
Use Null value in LDAP.

Hope it helpful.
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