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detect NIC settings - c#

Posted on 2007-11-27
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Last Modified: 2009-09-17
I need the sample code that i can use to detect the network settings of the NIC.
(speed,type,duplex/half etc)

Any help is greatly appreciated
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Question by:crystalguy2000
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Expert Comment

by:gnoon
ID: 20363264
Using Win32_NetworkAdapter Class

Code sample here http://www.codeproject.com/csharp/NetworkMonitorl.asp
Code reference here http://msdn2.microsoft.com/en-us/library/Aa394216.aspx
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Author Comment

by:crystalguy2000
ID: 20365605
The type or namespace name 'NetworkAdapter' could not be found (are you missing a using directive or an assembly reference?)      

have references to system.management and

using System.Net.NetworkInformation and
using System.Net

any suggestions?
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Expert Comment

by:gnoon
ID: 20365962
It's not a class of .NET, but a class of Windows Management Instrumentation (WMI) developed by Distributed Management Task Force (DMTF) represents a network adapter of a computer running a Windows operating system (as in the microsoft link above).

Below is its properties and how to query a property from computer using ManagementObjectSearcher (snippet from links above).
class Win32_NetworkAdapter : CIM_NetworkAdapter
{
  string AdapterType;
  uint16 AdapterTypeID;
  boolean AutoSense;
  uint16 Availability;
  string Caption;
  uint32 ConfigManagerErrorCode;
  boolean ConfigManagerUserConfig;
  string CreationClassName;
  string Description;
  string DeviceID;
  boolean ErrorCleared;
  string ErrorDescription;
  string GUID;
  uint32 Index;
  datetime InstallDate;
  boolean Installed;
  uint32 InterfaceIndex;
  uint32 LastErrorCode;
  string MACAddress;
  string Manufacturer;
  uint32 MaxNumberControlled;
  uint64 MaxSpeed;
  string Name;
  string NetConnectionID;
  uint16 NetConnectionStatus;
  boolean NetEnabled;
  string NetworkAddresses[];
  string PermanentAddress;
  boolean PhysicalAdapter;
  string PNPDeviceID;
  uint16 PowerManagementCapabilities[];
  boolean PowerManagementSupported;
  string ProductName;
  string ServiceName;
  uint64 Speed;
  string Status;
  uint16 StatusInfo;
  string SystemCreationClassName;
  string SystemName;
  datetime TimeOfLastReset;
};
 
// read informations of all network adapters
ManagementObjectSearcher searcher = new 
    ManagementObjectSearcher("SELECT * FROM Win32_NetworkAdapter");
ManagementObjectCollection adapterObjects = searcher.Get();
foreach (ManagementObject adapterObject in adapterObjects)
{
    string adapterName    =    adapterObject["Name"];
    string sdapterType    =    adapterObject["AdapterType"];
    ...
}

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Author Comment

by:crystalguy2000
ID: 20366544
how would i do that using c#?
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Expert Comment

by:gnoon
ID: 20370376
See at the end of code above.
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Author Comment

by:crystalguy2000
ID: 20370839
THat did not work.

The type or namespace name 'NetworkAdapter' could not be found (are you missing a using directive or an assembly reference?)      

have references to system.management and

using System.Net.NetworkInformation and
using System.Net

any suggestions?
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Author Comment

by:crystalguy2000
ID: 20370934
I tried to paste the code and compiiled.
It complains of some missing namespace..
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Accepted Solution

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gnoon earned 500 total points
ID: 20371000
There's a bit syntax error in code above about type cast.
This code works on my computer.

However, some properties, e.g. speedduplex, may be not populated because manufacturer driver does not make the information available. You may try to check if they're available in the registry under

HKLM\System\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}
using System;
using System.Management;
 
class MyNetworkAdapters
{
	public static void Main() 
	{
		// read informations of all network adapters
		ManagementObjectSearcher searcher = new 
			ManagementObjectSearcher("SELECT * FROM Win32_NetworkAdapter");
		ManagementObjectCollection adapterObjects = searcher.Get();
		foreach (ManagementObject adapterObject in adapterObjects)
		{
			string adapterName = (string)adapterObject["Name"];
			string adapterType = (string)adapterObject["AdapterType"];
			UInt16 connectionStatus = Convert.ToUInt16(adapterObject["NetConnectionStatus"]);
			Console.WriteLine("{0} : {1} ({2})",adapterName, adapterType, connectionStatus);
		}
		Console.Read();
	}
}

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Author Comment

by:crystalguy2000
ID: 20371069
thanks..this one works...But as you said the speed was not populated.
But i think that should suffice for my research.
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Expert Comment

by:Computer101
ID: 20591145
Forced accept.

Computer101
EE Admin
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