/// <summary>
/// Get the NetworkAdapter Netenabled Property
/// </summary>
/// <returns>Whether the NetworkAdapter is enabled</returns>
public int GetNetConnectionStatus()
{
string strWQuery = string.Format("SELECT NetEnabled, NetConnectionStatus FROM Win32_NetworkAdapter "
+ "WHERE DeviceID = {0}", DeviceId);
try
{
ManagementObjectCollection networkAdapters =
WMIOperation.WMIQuery(strWQuery);
foreach (ManagementObject networkAdapter in networkAdapters)
{
return(Convert.ToInt32(networkAdapter["NetConnectionStatus"]));
}
}
catch (NullReferenceException)
{
// If NullReferenceException return (EnumNetEnabledStatus.Unknow)
}
return(0);
}
public NetworkAdapter(int deviceId)
{
ManagementObject crtNetworkAdapter = new ManagementObject();
string strWQuery = string.Format("SELECT DeviceID, ProductName, "
+ "NetEnabled, NetConnectionStatus "
+ "FROM Win32_NetworkAdapter "
+ "WHERE DeviceID = {0}", deviceId);
try
{
ManagementObjectCollection networkAdapters
= WMIOperation.WMIQuery(strWQuery);
foreach (ManagementObject networkAdapter in networkAdapters)
{
// Expected to be only one ManagementObject instance.
crtNetworkAdapter = networkAdapter;
break;
}
DeviceId = deviceId;
Name = crtNetworkAdapter["ProductName"].ToString();
NetEnabled = (
Convert.ToBoolean(crtNetworkAdapter["NetEnabled"].ToString()))
? (int)EnumNetEnabledStatus.Enabled
: (int)EnumNetEnabledStatus.Disabled;
NetConnectionStatus = Convert.ToInt32(
crtNetworkAdapter["NetConnectionStatus"].ToString());
}
catch (NullReferenceException)
{
// If there is no a network adapter which deviceid equates to the argument
// "deviceId" just to construct a none exists network adapter
DeviceId = -1;
Name = string.Empty;
NetEnabled = 0;
NetConnectionStatus = -1;
}
}
/// <summary>
/// List all the NetworkAdapters
/// </summary>
/// <returns>The list of all NetworkAdapter of the machine</returns>
public static List <NetworkAdapter> GetAllNetworkAdapter()
{
List <NetworkAdapter> allNetworkAdapter = new List <NetworkAdapter>();
// Manufacturer <> 'Microsoft'to get all none virtual devices.
// Because the AdapterType property will be null if the NetworkAdapter is
// disabled, so we do not use NetworkAdapter = 'Ethernet 802.3' or
// NetworkAdapter = 'Wireless’
string strWQuery = "SELECT DeviceID, ProductName, "
+ "NetEnabled, NetConnectionStatus "
+ "FROM Win32_NetworkAdapter "
+ "WHERE Manufacturer <> 'Microsoft'";
ManagementObjectCollection networkAdapters = WMIOperation.WMIQuery(strWQuery);
foreach (ManagementObject moNetworkAdapter in networkAdapters)
{
try
{
allNetworkAdapter.Add(new NetworkAdapter(
Convert.ToInt32(moNetworkAdapter["DeviceID"].ToString()),
moNetworkAdapter["ProductName"].ToString(),
(Convert.ToBoolean(moNetworkAdapter["NetEnabled"].ToString()))
? (int)EnumNetEnabledStatus.Enabled
: (int)EnumNetEnabledStatus.Disabled,
Convert.ToInt32(moNetworkAdapter["NetConnectionStatus"].ToString()
)));
}
catch (NullReferenceException)
{
// Ignore some other devices (like the bluetooth), that need user
// interaction to enable or disable.
}
}
return(allNetworkAdapter);
}
/// <summary>
/// Get the NetworkAdapter Netenabled Property
/// </summary>
/// <returns>Whether the NetworkAdapter is enabled</returns>
public int GetNetEnabled()
{
int netEnabled = (int)EnumNetEnabledStatus.Unknow;
string strWQuery = string.Format("SELECT NetEnabled FROM Win32_NetworkAdapter "
+ "WHERE DeviceID = {0}", DeviceId);
try
{
ManagementObjectCollection networkAdapters =
WMIOperation.WMIQuery(strWQuery);
foreach (ManagementObject networkAdapter in networkAdapters)
{
netEnabled =
(Convert.ToBoolean(networkAdapter["NetEnabled"].ToString()))
? (int)EnumNetEnabledStatus.Enabled
: (int)EnumNetEnabledStatus.Disabled;
}
}
catch (NullReferenceException)
{
// If NullReferenceException return (EnumNetEnabledStatus.Unknow)
}
return(netEnabled);
}
/// <summary>
/// Enable Or Disable The NetworkAdapter
/// </summary>
/// <returns>
/// Whether the NetworkAdapter was enabled or disabled successfully
/// </returns>
public int EnableOrDisableNetworkAdapter(string strOperation)
{
int resultEnableDisableNetworkAdapter = (int)EnumEnableDisableResult.Unknow;
ManagementObject crtNetworkAdapter = new ManagementObject();
string strWQuery = string.Format("SELECT DeviceID, ProductName, "
+ "NetEnabled, NetConnectionStatus "
+ "FROM Win32_NetworkAdapter " + "WHERE DeviceID = {0}", DeviceId);
try
{
ManagementObjectCollection networkAdapters =
WMIOperation.WMIQuery(strWQuery);
foreach (ManagementObject networkAdapter in networkAdapters)
{
crtNetworkAdapter = networkAdapter;
}
crtNetworkAdapter.InvokeMethod(strOperation, null);
System.Threading.Thread.Sleep(1000);
if (strOperation == "Enable")
{
while (GetNetConnectionStatus() == 0)
{
System.Threading.Thread.Sleep(100);
}
for (int a = 1; a <= 10; a++)
{
System.Threading.Thread.Sleep(300);
}
if (GetNetConnectionStatus() == 2 || GetNetConnectionStatus() == 1)
{
while (GetNetEnabled() != (int)EnumNetEnabledStatus.Enabled)
{
System.Threading.Thread.Sleep(100);
}
}
}
if (strOperation == "Disable")
{
while (GetNetConnectionStatus() != 0)
{
System.Threading.Thread.Sleep(100);
}
}
resultEnableDisableNetworkAdapter =
(int)EnumEnableDisableResult.Success;
}
catch (NullReferenceException)
{
// If there is a NullReferenceException, the result of the enable or
// disable network adapter operation will be fail
resultEnableDisableNetworkAdapter = (int)EnumEnableDisableResult.Fail;
}
crtNetworkAdapter.Dispose();
return(resultEnableDisableNetworkAdapter);
}