[Gtk-sharp-list] Novell.Directory.Ldap.LdapException has been thrown

[leo.xucn]

Hello:

I am design a tool that can connect to active directory.

I make a AD_operation class, in the class I write some method, here is a
function that i write as the following:

                /// <summary>
		/// check if the OU,Group or User exist
		/// </summary>
		/// 
		/// 
		/// <returns></returns>
		public bool ObjectExists(string objectName, string catalog)
		{
			DirectoryEntry de = Connect_Domain.AdHelper.GetDirectoryEntry ();
			DirectorySearcher deSearch = new DirectorySearcher();
			deSearch.SearchRoot = de;
			switch (catalog)
			{
			case "User": deSearch.Filter = "(&(objectClass=user) (cn=" + objectName +
"))"; break;
			case "Group": deSearch.Filter = "(&(objectClass=group) (cn=" + objectName
+ "))"; break;
			case "OU": deSearch.Filter = "(&(objectClass=OrganizationalUnit) (OU=" +
objectName + "))"; break;
			default: break;
			}
			SearchResultCollection results = deSearch.FindAll();
			if (results.Count == 0)
			{
				return false;
			}
			else
			{
				return true;
			}
		}

the function is check the active directory all the object, if find it,
record it

but when the program run it, it throws a exception at  line: 
SearchResultCollection results = deSearch.FindAll();

the exception is Novell.Directory.Ldap.LdapException has been thrown.

i don't know why, is there anyone can help me?


Novell.Directory.Ldap.LdapException has been thrown



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