Private Sub work()
        While True
        End While
End Sub 

Task.Factory.StartNew(Sub() work()) 

Dim lst As New List(Of String) From {"meysam", ".nettips", "vahidnasirii"} 
Parallel.ForEach(lst, Sub(item) Console.WriteLine("name:{0}", item)) 

Dim no(9) As Integer
   For i As Integer = 0 To no.Length - 1
        no(i) = i
   Next
Dim result As IEnumerable(Of Double) = no.AsParallel.Select(Function(q) Math.Pow(q, 3)).OrderBy(Function(q) q)
   For Each items In result
        Console.WriteLine(items)
   Next 

class MyClass
{
    public static int a;
    public static void DoSomething();
}

MyClass.DoSomething(); // and not -> new MyClass().DoSomething();

class MyClass
{
 // non-static instance member variable
 private int a;
 //static member variable
 private static int b;
 //static method
 public static void DoSomething()
 {
  //this will result in compilation error as “a” has no memory
  a = a + 1;
  //this works fine since “b” is static
  b = b + 1;
 }
}

using FluentNHibernate;
using FluentNHibernate.Cfg;
using FluentNHibernate.Cfg.Db;
using NHSample1.Mappings;

namespace ConsoleTestApplication
{
  class CDb
  {
      public static void CreateDb(IPersistenceConfigurer dbType)
      {
          var cfg = Fluently.Configure().Database(dbType);

          PersistenceModel pm = new PersistenceModel();
          pm.AddMappingsFromAssembly(typeof(CustomerMapping).Assembly);
          var sessionSource = new SessionSource(
                              cfg.BuildConfiguration().Properties,
                              pm);

          var session = sessionSource.CreateSession();
          sessionSource.BuildSchema(session, true);
      }
  }
}

CDb.CreateDb(
               MsSqlConfiguration
                  .MsSql2008
                  .ConnectionString("Data Source=(local);Initial Catalog=HelloNHibernate;Integrated Security = true")
                  .ShowSql());

using FluentNHibernate.Cfg;
using FluentNHibernate.Cfg.Db;
using NHibernate;
using NHSample1.Mappings;

namespace ConsoleTestApplication
{
  class Config
  {
      public static ISessionFactory CreateSessionFactory(IPersistenceConfigurer dbType)
      {
          return
             Fluently.Configure().Database(dbType
              ).Mappings(m => m.FluentMappings.AddFromAssembly(typeof(CustomerMapping).Assembly))
               .BuildSessionFactory();
      }
  }
}

using System;
using NHibernate;
using NHSample1.Domain;

namespace ConsoleTestApplication
{
  class CDbOperations
  {
      ISessionFactory _factory;

      public CDbOperations(ISessionFactory factory)
      {
          _factory = factory;
      }

      public int AddNewCustomer()
      {
          using (ISession session = _factory.OpenSession())
          {
              using (ITransaction transaction = session.BeginTransaction())
              {
                  Customer vahid = new Customer()
                  {
                      FirstName = "Vahid",
                      LastName = "Nasiri",
                      AddressLine1 = "Addr1",
                      AddressLine2 = "Addr2",
                      PostalCode = "1234",
                      City = "Tehran",
                      CountryCode = "IR"
                  };

                  Console.WriteLine("Saving a customer...");

                  session.Save(vahid);
                  session.Flush();//چندین عملیات با هم و بعد

                  transaction.Commit();

                  return vahid.Id;
              }
          }
      }

      public void DeleteCustomer(int id)
      {
          using (ISession session = _factory.OpenSession())
          {
              using (ITransaction transaction = session.BeginTransaction())
              {
                  Customer customer = session.Load<Customer>(id);
                  Console.WriteLine("Id:{0}, Name: {1}", customer.Id, customer.FirstName);

                  Console.WriteLine("Deleting a customer...");
                  session.Delete(customer);

                  session.Flush();//چندین عملیات با هم و بعد

                  transaction.Commit();
              }
          }
      }
  }
}

using System;
using FluentNHibernate.Cfg.Db;
using NHibernate;
using NHSample1.Domain;

namespace ConsoleTestApplication
{
  class Program
  {
      static void Main(string[] args)
      {
          //CDb.CreateDb(SQLiteConfiguration.Standard.ConnectionString("data source=sample.sqlite").ShowSql());          
          //return;

          //todo: Read ConnectionString from app.config or web.config
          using (ISessionFactory session = Config.CreateSessionFactory(
                MsSqlConfiguration
                   .MsSql2008
                   .ConnectionString("Data Source=(local);Initial Catalog=HelloNHibernate;Integrated Security = true")
                   .ShowSql()
              ))
          {
              CDbOperations db = new CDbOperations(session);
              int id = db.AddNewCustomer();
              Console.WriteLine("Loading a customer and delete it...");
              db.DeleteCustomer(id);
          }

          Console.WriteLine("Press a key...");
          Console.ReadKey();
      }
  }
}

Saving a customer...
NHibernate: select next_hi from hibernate_unique_key with (updlock, rowlock)
NHibernate: update hibernate_unique_key set next_hi = @p0 where next_hi = @p1;@p0 = 17, @p1 = 16
NHibernate: INSERT INTO [Customer] (FirstName, LastName, AddressLine1, AddressLine2, PostalCode, City, CountryCode, Id) VALUES (@p0, @p1, @p2, @p3, @p4, @p5, @p6, @p7);@p0 = 'Vahid', @p1 = 'Nasiri', @p2 = 'Addr1', @p3 = 'Addr2', @p4 = '1234', @p5 = 'Tehran', @p6 = 'IR', @p7 = 16016
Loading a customer and delete it...
NHibernate: SELECT customer0_.Id as Id2_0_, customer0_.FirstName as FirstName2_0_, customer0_.LastName as LastName2_0_, customer0_.AddressLine1 as AddressL4_2_0_, customer0_.AddressLine2 as AddressL5_2_0_, customer0_.PostalCode as PostalCode2_0_, customer0_.City as City2_0_, customer0_.CountryCode as CountryC8_2_0_ FROM [Customer] customer0_ WHERE customer0_.Id=@p0;@p0 = 16016
Id:16016, Name: Vahid
Deleting a customer...
NHibernate: DELETE FROM [Customer] WHERE Id = @p0;@p0 = 16016
Press a key...

CDb.CreateDb(SQLiteConfiguration.Standard.ConnectionString("data source=sample.sqlite").ShowSql());

          //todo: Read ConnectionString from app.config or web.config
          using (ISessionFactory session = Config.CreateSessionFactory(
                     SQLiteConfiguration.Standard.ConnectionString("data source=sample.sqlite").ShowSql()
              ))
          {
 ...