MAC ID Generating In C#.NET

Step 1:

Go to the solution Explorer--> Right Click --> Add Refrence --> System.Management

Step 2:

Add 2 NameSpaces :

1).using System.Management;

2).using System.Management.Instrumentation;

Step 3:

//Create object for management class

ManagementClass mc=newManagementClass("Win32_NetworkAdapterConfiguration");

Step 4:

//management object collection represent all collections from managemnet class                                               

ManagementObjectCollection moc = mc.GetInstances();

string MACAddress = String.Empty;

foreach (ManagementObject mo in moc)

 {

if(MACAddress == String.Empty) 

// only return MAC Address from first card            

 {

if ((bool)mo["IPEnabled"] == true)

 MACAddress = mo["MacAddress"].ToString(); 

 }

mo.Dispose();     

}         

//after every 2 digits it returns ":"      

 MACAddress = MACAddress.Replace(":", "");                       MessageBox.Show(MACAddress);