Re: Listing domains 2003 active directory
From: yaseen (anonymous_at_discussions.microsoft.com)
Date: 01/27/04
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Date: Mon, 26 Jan 2004 22:47:56 -0800
Hi Joe,
I cant debug it because it is giving problem on customers
server where i installed this component.If i test it on my
server it works fine with windows 2003 activedirectory.
The code which i am using is as follows:
"NetWorkManagement.cs file"
using System;
// standard
using System.Runtime.InteropServices; // for DllImport,
MarshalAs, etc
using System.Collections; //
for IEnumerator, IEnumerable
using System.Windows.Forms; //
for ComboBox
namespace NetworkManagement
{
/// <summary>
/// Wrapper class for all Win32 API calls and
structures
/// </summary>
internal class Win32API
{
#region Win32 API Interfaces
[DllImport( "netapi32.dll", EntryPoint
= "NetApiBufferFree" )]
internal static extern void
NetApiBufferFree(IntPtr bufptr);
[DllImport( "netapi32.dll", EntryPoint
= "NetServerEnum" )]
internal static extern uint NetServerEnum(
IntPtr ServerName,
uint level,
ref IntPtr siPtr,
uint prefmaxlen,
ref uint entriesread,
ref uint totalentries,
uint servertype,
[MarshalAs(UnmanagedType.LPWStr)]
string domain,
IntPtr resumeHandle);
/// <summary>
/// Windows NT/2000/XP Only
/// </summary>
[DllImport( "netapi32.dll", EntryPoint
= "NetServerGetInfo" )]
internal static extern uint
NetServerGetInfo(
[MarshalAs(UnmanagedType.LPWStr)]
string ServerName,
int level,
ref IntPtr buffPtr);
[StructLayoutAttribute
(LayoutKind.Sequential, CharSet=CharSet.Auto)]
internal struct SERVER_INFO_101
{
public int dwPlatformID;
public IntPtr lpszServerName;
public int dwVersionMajor;
public int dwVersionMinor;
public int dwType;
public IntPtr lpszComment;
}
#endregion
}
/// <summary>
/// The possible flag values for Server Type (see
lmserver.h).
/// This is probably not CLS compliant as the data
type is uint.
/// </summary>
[Flags]
public enum ServerType : uint
{
/// <summary>
/// Opposite of All. No servers will be
returned.
/// </summary>
None = 0x00000000,
/// <summary>
/// All workstations
/// </summary>
Workstation = 0x00000001,
/// <summary>
/// All servers
/// </summary>
Server = 0x00000002,
/// <summary>
/// Any server running with Microsoft SQL
Server
/// </summary>
SQLServer = 0x00000004,
/// <summary>
/// Primary domain controller
/// </summary>
DomainController = 0x00000008,
/// <summary>
/// Backup domain controller
/// </summary>
DomainBackupController = 0x00000010,
/// <summary>
/// Server running the Timesource service
/// </summary>
TimeSource = 0x00000020,
/// <summary>
/// Apple File Protocol servers
/// </summary>
AFP = 0x00000040,
/// <summary>
/// Novell servers
/// </summary>
Novell = 0x00000080,
/// <summary>
/// LAN Manager 2.x domain member
/// </summary>
DomainMember = 0x00000100,
/// <summary>
/// Server sharing print queue
/// </summary>
PrintQueue = 0x00000200,
/// <summary>
/// Server running dial-in service
/// </summary>
Dialin = 0x00000400,
/// <summary>
/// Xenix server
/// </summary>
Xenix = 0x00000800,
/// <summary>
/// Unix servers?
/// </summary>
Unix = Xenix,
/// <summary>
/// Windows NT workstation or server
/// </summary>
NT = 0x00001000,
/// <summary>
/// Server running Windows for Workgroups
/// </summary>
WFW = 0x00002000,
/// <summary>
/// Microsoft File and Print for NetWare
/// </summary>
MFPN = 0x00004000,
/// <summary>
/// Server that is not a domain controller
/// </summary>
NTServer = 0x00008000,
/// <summary>
/// Server that can run the browser service
/// </summary>
PotentialBrowser = 0x00010000,
/// <summary>
/// Server running a browser service as
backup
/// </summary>
BackupBrowser = 0x00020000,
/// <summary>
/// Server running the master browser
service
/// </summary>
MasterBrowser = 0x00040000,
/// <summary>
/// Server running the domain master
browser
/// </summary>
DomainMaster = 0x00080000,
/// <summary>
/// Not documented on MSDN? Help Microsoft!
/// </summary>
OSF = 0x00100000,
/// <summary>
/// Running VMS
/// </summary>
VMS = 0x00200000,
/// <summary>
/// Windows 95 or later
/// </summary>
Windows = 0x00400000,
/// <summary>
/// Distributed File System??
/// </summary>
DFS = 0x00800000,
/// <summary>
/// Not documented on MSDN? Help Microsoft!
/// </summary>
ClusterNT = 0x01000000,
/// <summary>
/// Terminal Server
/// </summary>
TerminalServer = 0x02000000,
/// <summary>
/// Not documented on MSDN? Help Microsoft!
/// </summary>
DCE = 0x10000000,
/// <summary>
/// Not documented on MSDN? Help Microsoft!
/// </summary>
AlternateXPort =0x20000000,
/// <summary>
/// Servers maintained by the browser
/// </summary>
ListOnly = 0x40000000,
/// <summary>
/// List Domains
/// </summary>
DomainEnum = 0x80000000,
/// <summary>
/// All servers
/// </summary>
All = 0xFFFFFFFF
}
/// <summary>
/// Enumerates over a set of servers returning the
server's name.
/// </summary>
public class ServerEnumerator : IEnumerator
{
#region Instance Variables
/// <summary>
/// Memory buffer pointer returned by
NetServerEnum
/// </summary>
protected IntPtr serverInfoPtr;
/// <summary>
/// The current item number
/// </summary>
protected int currentItem;
/// <summary>
/// Number of items in the collection
/// </summary>
protected uint itemCount;
/// <summary>
/// The name of the machine returned by
Current
/// </summary>
protected string currentServerName;
/// <summary>
/// Save the size of the SERVER_INFO_101
structure.
/// This allows us to only have a single
time we need
/// to use 'unsafe' code.
/// </summary>
protected static int SERVER_INFO_101_SIZE;
#endregion
static ServerEnumerator()
{
unsafe
{
SERVER_INFO_101_SIZE =
sizeof(Win32API.SERVER_INFO_101);
}
}
/// <summary>
/// Returns the current
server/machine/domain name
/// </summary>
public object Current
{
get { return currentServerName; }
}
/// <summary>
/// Moves to the next server/machine/domain
/// </summary>
/// <returns></returns>
public bool MoveNext()
{
bool result = false;
if ( ++currentItem < itemCount )
{
int newOffset =
serverInfoPtr.ToInt32() + SERVER_INFO_101_SIZE *
currentItem;
Win32API.SERVER_INFO_101
si = (Win32API.SERVER_INFO_101) Marshal.PtrToStructure(new
IntPtr(newOffset), typeof(Win32API.SERVER_INFO_101));
currentServerName =
Marshal.PtrToStringAuto(si.lpszServerName);
result = true;
}
return result;
}
/// <summary>
/// Resets the enumeration back to the
beginning.
/// </summary>
public void Reset()
{
currentItem = -1;
currentServerName = null;
}
/// <summary>
///
/// </summary>
/// <param name="serverType"></param>
protected internal ServerEnumerator
(ServerType serverType) : this(serverType, null)
{
}
/// <summary>
///
/// </summary>
/// <param name="serverType"></param>
/// <param name="domainName"></param>
protected internal ServerEnumerator
(ServerType serverType, string domainName)
{
uint level = 101, prefmaxlen =
0xFFFFFFFF, entriesread = 0, totalentries = 0;
Reset();
serverInfoPtr = IntPtr.Zero;
uint nRes = Win32API.NetServerEnum(
IntPtr.Zero, //
Server Name: Reserved; must be NULL.
level,
// Return server names, types, and associated
software. The bufptr parameter points to an array of
SERVER_INFO_101 structures.
ref serverInfoPtr, //
Pointer to the buffer that receives the data.
prefmaxlen,
// Specifies the preferred maximum length of
returned data, in bytes.
ref entriesread, //
count of elements actually enumerated.
ref totalentries, //
total number of visible servers and workstations on the
network
(uint) serverType, //
value that filters the server entries to return from the
enumeration
null,
// Pointer to a constant string that specifies the
name of the domain for which a list of servers is to be
returned.
IntPtr.Zero); //
Reserved; must be set to zero.
itemCount = entriesread;
}
/// <summary>
///
/// </summary>
~ServerEnumerator()
{
if ( ! serverInfoPtr.Equals(
IntPtr.Zero ) )
{
Win32API.NetApiBufferFree
(serverInfoPtr);
serverInfoPtr =
IntPtr.Zero;
}
}
}
/// <summary>
/// Class that encapsulates the Win32 API call of
NetServerEnum
/// </summary>
public class Servers : IEnumerable
{
private ServerType serverType;
private string domainName;
#region Win32 API Interfaces
#endregion
#region Properties
/// <summary>
/// Gets/Sets the server type
/// </summary>
public ServerType Type
{
get { return serverType; }
set { serverType = value; }
}
/// <summary>
///
/// </summary>
public string DomainName
{
get { return domainName; }
set { domainName = value; }
}
#endregion
/// <summary>
///
/// </summary>
public Servers()
{
Type = ServerType.None;
}
/// <summary>
///
/// </summary>
/// <param name="aServerType"></param>
public Servers(ServerType aServerType)
{
Type = aServerType;
}
/// <summary>
///
/// </summary>
/// <returns>IEnumerator</returns>
public IEnumerator GetEnumerator()
{
return new ServerEnumerator
(serverType, domainName);
}
/// <summary>
/// Returns the server type of the named
server.
/// </summary>
/// <param name="serverName"></param>
/// <returns></returns>
public static ServerType GetServerType
(string serverName)
{
ServerType result =
ServerType.None;
IntPtr serverInfoPtr = IntPtr.Zero;
uint rc = Win32API.NetServerGetInfo
( serverName, 101, ref serverInfoPtr );
if ( rc != 0 )
{
Win32API.SERVER_INFO_101
si = (Win32API.SERVER_INFO_101) Marshal.PtrToStructure
(serverInfoPtr, typeof(Win32API.SERVER_INFO_101));
result = (ServerType)
si.dwType;
Win32API.NetApiBufferFree
(serverInfoPtr);
serverInfoPtr =
IntPtr.Zero;
}
return result;
}
}
/// <summary>
/// A ComboBox that uses Servers object to
populate itself
/// with a list of servers.
/// </summary>
public class ServerComboBox : ComboBox
{
private Servers servers;
private bool autoRefresh;
#region Properties
/// <summary>
/// Server Type to search. Can be one or
more.
/// </summary>
public ServerType ServerType
{
get { return servers.Type; }
set
{
servers.Type = value;
if ( autoRefresh )
this.Refresh();
}
}
/// <summary>
/// Domain name to search. Set to
<code>null</code> for all.
/// </summary>
public string DomainName
{
get { return servers.DomainName; }
set
{
servers.DomainName = value;
if ( autoRefresh )
this.Refresh();
}
}
/// <summary>
/// If true, any changes to DomainName or
ServerType will
/// cause the combobox to refresh it's
data (default = false);
/// </summary>
public bool AutoRefresh
{
get { return autoRefresh; }
set { autoRefresh = value; }
}
#endregion
/// <summary>
///
/// </summary>
public ServerComboBox()
{
InitializeComponent();
servers = new Servers();
autoRefresh = false;
}
private void InitializeComponent()
{
this.Name = "ServerComboBox";
this.Size = new System.Drawing.Size
(168, 24);
}
/// <summary>
/// Refreshes the ComboBox's data by
enumerating the server list
/// </summary>
public override void Refresh()
{
base.Refresh();
BeginUpdate();
Items.Clear();
foreach (String name in servers)
{
Items.Add(name);
}
EndUpdate();
}
}
}
***********************************************************
ServerComboBoxForm.cs
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace NetworkManagement.Demo
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class ServerComboBoxForm :
System.Windows.Forms.Form
{
private NetworkManagement.ServerComboBox
serverCombo1;
private System.Windows.Forms.CheckBox
checkBox1;
private System.Windows.Forms.CheckBox
checkBox2;
private System.Windows.Forms.CheckBox
checkBox3;
private System.Windows.Forms.CheckBox
checkBox4;
private System.Windows.Forms.CheckBox
checkBox5;
private System.Windows.Forms.GroupBox
groupBox1;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container
components = null;
public ServerComboBoxForm()
{
//
// Required for Windows Form
Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code
after InitializeComponent call
//
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool
disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose
();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated
code
/// <summary>
/// Required method for Designer support -
do not modify
/// the contents of this method with the
code editor.
/// </summary>
private void InitializeComponent()
{
this.serverCombo1 = new
NetworkManagement.ServerComboBox();
this.checkBox1 = new
System.Windows.Forms.CheckBox();
this.checkBox2 = new
System.Windows.Forms.CheckBox();
this.checkBox3 = new
System.Windows.Forms.CheckBox();
this.checkBox4 = new
System.Windows.Forms.CheckBox();
this.checkBox5 = new
System.Windows.Forms.CheckBox();
this.groupBox1 = new
System.Windows.Forms.GroupBox();
this.SuspendLayout();
//
// serverCombo1
//
this.serverCombo1.AutoRefresh =
false;
this.serverCombo1.DomainName =
null;
this.serverCombo1.Location = new
System.Drawing.Point(8, 16);
this.serverCombo1.Name
= "serverCombo1";
this.serverCombo1.ServerType =
NetworkManagement.ServerType.None;
this.serverCombo1.Size = new
System.Drawing.Size(176, 21);
this.serverCombo1.TabIndex = 0;
//
// checkBox1
//
this.checkBox1.Location = new
System.Drawing.Point(16, 72);
this.checkBox1.Name = "checkBox1";
this.checkBox1.TabIndex = 1;
this.checkBox1.Text
= "Workstations";
this.checkBox1.CheckedChanged +=
new System.EventHandler(this.checkBox1_CheckedChanged);
//
// checkBox2
//
this.checkBox2.Location = new
System.Drawing.Point(16, 96);
this.checkBox2.Name = "checkBox2";
this.checkBox2.Size = new
System.Drawing.Size(88, 24);
this.checkBox2.TabIndex = 2;
this.checkBox2.Text = "SQL
Servers";
this.checkBox2.CheckedChanged +=
new System.EventHandler(this.checkBox2_CheckedChanged);
//
// checkBox3
//
this.checkBox3.Location = new
System.Drawing.Point(136, 72);
this.checkBox3.Name = "checkBox3";
this.checkBox3.Size = new
System.Drawing.Size(120, 24);
this.checkBox3.TabIndex = 3;
this.checkBox3.Text = "Domain
Controllers";
this.checkBox3.CheckedChanged +=
new System.EventHandler(this.checkBox3_CheckedChanged);
//
// checkBox4
//
this.checkBox4.Location = new
System.Drawing.Point(136, 96);
this.checkBox4.Name = "checkBox4";
this.checkBox4.Size = new
System.Drawing.Size(120, 24);
this.checkBox4.TabIndex = 4;
this.checkBox4.Text = "Terminal
Servers";
this.checkBox4.CheckedChanged +=
new System.EventHandler(this.checkBox4_CheckedChanged);
//
// checkBox5
//
this.checkBox5.Location = new
System.Drawing.Point(192, 16);
this.checkBox5.Name = "checkBox5";
this.checkBox5.Size = new
System.Drawing.Size(72, 24);
this.checkBox5.TabIndex = 5;
this.checkBox5.Text = "Domains";
this.checkBox5.CheckedChanged +=
new System.EventHandler(this.checkBox5_CheckedChanged);
//
// groupBox1
//
this.groupBox1.Location = new
System.Drawing.Point(8, 48);
this.groupBox1.Name = "groupBox1";
this.groupBox1.Size = new
System.Drawing.Size(256, 80);
this.groupBox1.TabIndex = 6;
this.groupBox1.TabStop = false;
this.groupBox1.Text = "Server
Type";
//
// ServerComboBoxForm
//
this.AutoScaleBaseSize = new
System.Drawing.Size(5, 13);
this.ClientSize = new
System.Drawing.Size(272, 133);
this.Controls.AddRange(new
System.Windows.Forms.Control[] {
this.checkBox5,
this.checkBox4,
this.checkBox3,
this.checkBox2,
this.checkBox1,
this.serverCombo1,
this.groupBox1});
this.Name = "ServerComboBoxForm";
this.Text = "Server List Test";
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// The main entry point for the
application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new
ServerComboBoxForm());
}
private void checkBox1_CheckedChanged
(object sender, System.EventArgs e)
{
checkBox5.Checked = false;
SetMask( checkBox1.Checked,
NetworkManagement.ServerType.Workstation);
}
private void checkBox2_CheckedChanged
(object sender, System.EventArgs e)
{
checkBox5.Checked = false;
SetMask( checkBox2.Checked,
NetworkManagement.ServerType.SQLServer);
}
private void checkBox3_CheckedChanged
(object sender, System.EventArgs e)
{
checkBox5.Checked = false;
SetMask( checkBox3.Checked,
NetworkManagement.ServerType.DomainController);
}
private void checkBox4_CheckedChanged
(object sender, System.EventArgs e)
{
checkBox5.Checked = false;
SetMask( checkBox4.Checked,
NetworkManagement.ServerType.TerminalServer );
}
private void checkBox5_CheckedChanged
(object sender, System.EventArgs e)
{
if ( checkBox5.Checked )
checkBox1.Checked =
checkBox2.Checked = checkBox3.Checked = checkBox4.Checked
= false;
SetMask( checkBox5.Checked,
NetworkManagement.ServerType.DomainEnum );
}
private void SetMask( bool setFlag,
NetworkManagement.ServerType flag )
{
if ( setFlag )
serverCombo1.ServerType |=
flag;
else
serverCombo1.ServerType &=
~flag;
serverCombo1.Refresh(); // requery
the combobox
}
}
}
************************************
- Next message: mm: "Re: Relocating KeyContainer"
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- In reply to: Joe Kaplan \(MVP - ADSI\): "Re: Listing domains 2003 active directory"
- Next in thread: Joe Kaplan \(MVP - ADSI\): "Re: Listing domains 2003 active directory"
- Reply: Joe Kaplan \(MVP - ADSI\): "Re: Listing domains 2003 active directory"
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