public PdfGrid RenderingGroupHeader(Document pdfDoc, PdfWriter pdfWriter, IList<CellData> newGroupInfo, IList<SummaryCellData> summaryData)
        {
            var teacherFullName = newGroupInfo.GetSafeStringValueOf("TeacherFullName");
            var teacherCode = newGroupInfo.GetSafeStringValueOf("TeacherCode");
            var teacherId = newGroupInfo.GetSafeStringValueOf("TeacherId");

//-- اینجا می‌خواهم مجموع 
//-- SessionCount 
//-- تمام سطرهای گروه را نمایش دهم .  اما تنها به اطلاعات سطر اول دسترسی دارم.
            //var sessionCount = newGroupInfo.GetSafeStringValueOf("SessionCount");

 var table = new PdfGrid(2)
            {
                WidthPercentage = 100,
                HorizontalAlignment = PdfWriter.RUN_DIRECTION_RTL,
                RunDirection = PdfWriter.RUN_DIRECTION_RTL
            };
            table.AddSimpleRow
            (
                (cellData, cellProperties) =>
                {
                    cellData.Value = teacherFullName;
                    cellProperties.PdfFont = FontHelper.GetIPdfFont(FontHelper.GetFontPath(FarsiFonts.BZar), new BaseColor(Color.Gray), 14);
                    cellProperties.HorizontalAlignment = HorizontalAlignment.Right;
                },
                (cellData, cellProperties) =>
                {
                    cellData.Value = teacherCode;
                    cellProperties.PdfFont = FontHelper.GetIPdfFont(FontHelper.GetFontPath(FarsiFonts.BYekan), new BaseColor(Color.Gray), 13);
                    cellProperties.HorizontalAlignment = HorizontalAlignment.Right;
                }
            );
            return table.AddBorderToTable(borderColor: BaseColor.LIGHT_GRAY, spacingBefore: 5f);
        }
 

       public void AddNewCustomers(params Customer[] customers)
       {
           using (ISession session = _factory.OpenSession())
           {
               using (ITransaction transaction = session.BeginTransaction())
               {
                   foreach (var data in customers)
                       session.Save(data);

                   session.Flush();

                   transaction.Commit();
               }
           }
       }

using System.Collections.Generic;
using System.Linq;
using NHibernate;
using NHibernate.Linq;
using NHSample1.Domain;

namespace ConsoleTestApplication
{
   class CLinqTest : NHibernateContext
   {  }
}

using System.Collections.Generic;
using System.Linq;
using NHibernate;
using NHibernate.Linq;
using NHSample1.Domain;

namespace ConsoleTestApplication
{
   class CLinqTest : NHibernateContext
   {
       ISessionFactory _factory;

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

       public List<Customer> GetAllCustomers()
       {
           using (ISession session = _factory.OpenSession())
           {
               var query = from x in session.Linq<Customer>() select x;
               return query.ToList();
           }
       }
   }
}

       static void Main(string[] args)
       {
           using (ISessionFactory session = Config.CreateSessionFactory(
                 MsSqlConfiguration
                    .MsSql2008
                    .ConnectionString("Data Source=(local);Initial Catalog=HelloNHibernate;Integrated Security = true")
                    .ShowSql()
               ))
           {

               var customer1 = new Customer()
               {
                   FirstName = "Vahid",
                   LastName = "Nasiri",
                   AddressLine1 = "Addr1",
                   AddressLine2 = "Addr2",
                   PostalCode = "1234",
                   City = "Tehran",
                   CountryCode = "IR"
               };

               var customer2 = new Customer()
               {
                   FirstName = "Ali",
                   LastName = "Hasani",
                   AddressLine1 = "Addr..1",
                   AddressLine2 = "Addr..2",
                   PostalCode = "4321",
                   City = "Shiraz",
                   CountryCode = "IR"
               };

               var customer3 = new Customer()
               {
                   FirstName = "Mohsen",
                   LastName = "Shams",
                   AddressLine1 = "Addr...1",
                   AddressLine2 = "Addr...2",
                   PostalCode = "5678",
                   City = "Ahwaz",
                   CountryCode = "IR"
               };

               CDbOperations db = new CDbOperations(session);
               db.AddNewCustomers(customer1, customer2, customer3);

               CLinqTest lt = new CLinqTest(session);
               foreach (Customer customer in lt.GetAllCustomers())
               {
                   Console.WriteLine("Customer: LastName = {0}", customer.LastName);
               }
           }

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

       }

       public List<Customer> GetCustomersByCity(string city)
       {
           using (ISession session = _factory.OpenSession())
           {
               var query = from x in session.Linq<Customer>()
                           where x.City == city
                           select x;
               return query.ToList();
           }
       }

               foreach (Customer customer in lt.GetCustomersByCity("Shiraz"))
               {
                   Console.WriteLine("Customer: LastName = {0}", customer.LastName);
               }

using System.Linq;
using NHibernate;
using NHibernate.Linq;
using NHSample1.Domain;

namespace ConsoleTestApplication
{
   class SampleContext : NHibernateContext
   {
       public SampleContext(ISession session)
           : base(session)
       { }

       public IOrderedQueryable<Customer> Customers
       {
           get { return Session.Linq<Customer>(); }
       }

       public IOrderedQueryable<Employee> Employees
       {
           get { return Session.Linq<Employee>(); }
       }

       public IOrderedQueryable<Order> Orders
       {
           get { return Session.Linq<Order>(); }
       }

       public IOrderedQueryable<OrderItem> OrderItems
       {
           get { return Session.Linq<OrderItem>(); }
       }

       public IOrderedQueryable<Product> Products
       {
           get { return Session.Linq<Product>(); }
       }
   }
}

using System.Collections.Generic;
using System.Linq;
using NHibernate;
using NHSample1.Domain;

namespace ConsoleTestApplication
{
   class CSampleContextTest
   {
       ISessionFactory _factory;

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

       public List<Customer> GetCustomersByCity(string city)
       {
           using (ISession session = _factory.OpenSession())
           {
               using (SampleContext db = new SampleContext(session))
               {
                   var query = from x in db.Customers
                               where x.City == city
                               select x;
                   return query.ToList();
               }
           }
       }
   }
}

<ul id="treeview" data-role="treeview">
      <li data-expanded="true">
        <span class="k-sprite folder"></span>
        My Web Site
        <ul>
          <li data-expanded="true">
            <span class="k-sprite folder"></span>images
            <ul>
              <li><span class="k-sprite image"></span>logo.png</li>
              <li><span class="k-sprite image"></span>body-back.png</li>
              <li><span class="k-sprite image"></span>my-photo.jpg</li> 
            </ul>
          </li>
          <li data-expanded="true">
            <span class="k-sprite folder"></span>resources
            <ul>
              <li data-expanded="true">
                <span class="k-sprite folder"></span>pdf
                <ul>
                  <li><span class="k-sprite pdf"></span>brochure.pdf</li>
                  <li><span class="k-sprite pdf"></span>prices.pdf</li>
                </ul>
              </li>
              <li><span class="k-sprite folder"></span>zip</li>
            </ul>
          </li>
        </ul>
      </li>
    </ul>