上面的例子通常发生在publish一个新开发的web application的时候，解决方法很简单：即修改App_Data这个目录的Security属性，加入用户”NETWORK SERVICE”，并设置该用户可以对这个目录有Write权限。

http://forge.novell.com/modules/xfcontent/downloads.php/ldapcsharp/ldapcsharp/CsharpLDAP-v2.1.10/

[csharp]
using System;
using System.Collections.Generic;
using System.Text;
using Novell.Directory.Ldap;

namespace LDAPUtility
{
class LDAPUtil
{
private string ldapHost = “ssuzdc3″;
private int ldapPort = 389;
LdapConnection ldapConn = null;

private void Connect()
{
try
{
// Creating an LdapConnection instance
ldapConn = new LdapConnection();

// Connect function will create a socket connection to the server
ldapConn.Connect(ldapHost, ldapPort);

// Bind function with null user dn and password value will perform anonymous bind
// to LDAP server
ldapConn.Bind(null, null);
}
catch (Exception e)
{
// failed to connect to server
}
}

private void Disconnect()
{
ldapConn.Disconnect();
ldapConn = null;
}

public string GetSupervisor(string id)
{
Connect();

string boss = “”;
try
{
LdapSearchResults lsc = ldapConn.Search(“OU=Users,OU=Suzhou,DC=charry,DC=org”,
LdapConnection.SCOPE_ONE,
“sAMAccountName=” + id,
null,
false);

while (lsc.hasMore())
{
LdapEntry nextEntry = null;
try
{
nextEntry = lsc.next();
}
catch (LdapException e)
{
// Exception is thrown, go for next entry
continue;
}

LdapAttribute attribute = nextEntry.getAttribute(“manager”);
boss = attribute.StringValue;
}
}
catch (Exception e)
{
// exception
}

Disconnect();

return GetAMAcountName(boss);
}

private string GetFullName(string id)
{
// CN=Wang, Charry,OU=Users,OU=Suzhou,DC=charry,DC=org
int end = id.IndexOf(“OU=”);

id = id.Substring(3, end – 4);
id = id.Replace(“\”, “”);

return id;
}

// convert distinguished name to AMAcountName
public string GetAMAcountName(string id)
{
id = GetFullName(id);
Connect();

string tmp = “”;
try
{
LdapSearchResults lsc = ldapConn.Search(“OU=Users,OU=Suzhou,DC=charry,DC=org”,
LdapConnection.SCOPE_ONE,
“displayName=” + id,
null,
false);

while (lsc.hasMore())
{
LdapEntry nextEntry = null;
try
{
nextEntry = lsc.next();
}
catch (LdapException e)
{
// Exception is thrown, go for next entry
continue;
}

LdapAttribute attribute = nextEntry.getAttribute(“sAMAccountName”);
tmp = attribute.StringValue;
}
}
catch (Exception e)
{
// exception
}

Disconnect();

return tmp;
}

public string GetDisplayName(string id)
{
Connect();
string name = “”;
// get fullname

try
{
LdapSearchResults lsc = ldapConn.Search(“OU=Users,OU=Suzhou,DC=charry,DC=org”,
LdapConnection.SCOPE_ONE,
“sAMAccountName=” + id,
null,
false);

while (lsc.hasMore())
{
LdapEntry nextEntry = null;
try
{
nextEntry = lsc.next();
}
catch (LdapException e)
{
// Exception is thrown, go for next entry
continue;
}


LdapAttribute attribute = nextEntry.getAttribute(“displayName”);
name = attribute.StringValue;
}
}
catch (Exception e)
{
// exception
}

Disconnect();

return name;
}

public string GetEmail(string id)
{
Connect();
string email = “”;
try
{
LdapSearchResults lsc = ldapConn.Search(“OU=Users,OU=Suzhou,DC=charry,DC=org”,
LdapConnection.SCOPE_ONE,
“sAMAccountName=” + id,
null,
false);

while (lsc.hasMore())
{
LdapEntry nextEntry = null;
try
{
nextEntry = lsc.next();
}
catch (LdapException e)
{
// Exception is thrown, go for next entry
continue;
}

LdapAttribute attribute = nextEntry.getAttribute(“mail”);
email = attribute.StringValue;
}
}
catch (Exception e)
{
// exception
}

Disconnect();

return email;
}

public static void test()
{
string ldapHost = “ssuzdc3″;
int ldapPort = 389;

try
{
// Creating an LdapConnection instance
LdapConnection ldapConn = new LdapConnection();

// Connect function will create a socket connection to the server
ldapConn.Connect(ldapHost, ldapPort);

// Bind function with null user dn and password value will perform anonymous bind
// to LDAP server
ldapConn.Bind(null, null);

// Searches in the Marketing container and return all child entries just below this
// container i.e. Single level search
LdapSearchResults lsc = ldapConn.Search(“OU=Users,OU=Suzhou,DC=charry,DC=org”,
LdapConnection.SCOPE_ONE,
“sAMAccountName=qinick”,
null,
false);

while (lsc.hasMore())
{
LdapEntry nextEntry = null;
try
{
nextEntry = lsc.next();
}
catch (LdapException e)
{
Console.WriteLine(“Error: ” + e.LdapErrorMessage);
// Exception is thrown, go for next entry
continue;
}

Console.WriteLine(“n” + nextEntry.DN);
LdapAttributeSet attributeSet = nextEntry.getAttributeSet();
System.Collections.IEnumerator ienum = attributeSet.GetEnumerator();
while (ienum.MoveNext())
{
LdapAttribute attribute = (LdapAttribute)ienum.Current;
string attributeName = attribute.Name;
string attributeVal = attribute.StringValue;
Console.WriteLine(attributeName + “value:” + attributeVal);
}
}
ldapConn.Disconnect();

}
catch (Exception e)
{
string x = e.Message;
}

Console.Read();
}
}
}
[/csharp]