public class Order
{
    public int OrderId { get; set; }
    public string Product { get; set; }
    public int Quantity { get; set; }
    public string Status { get; set; }
    public byte[] TimeStamp { get; set; }
}

<connectionStrings>
  <add name="Recipe1ConnectionString"
    connectionString="Data Source=.;
    Initial Catalog=EFRecipes;
    Integrated Security=True;
    MultipleActiveResultSets=True"
    providerName="System.Data.SqlClient" />
</connectionStrings>

protected void Application_Start()
{
    // Disable Entity Framework Model Compatibilty
    Database.SetInitializer<Recipe1Context>(null);
    ...
}

public IPdfReportData CreatePdfReport(int type,int RequestId)
        {
            return new PdfReport().DocumentPreferences(doc =>
            {
                doc.RunDirection(PdfRunDirection.RightToLeft);
                doc.Orientation(PageOrientation.Portrait);
                doc.PageSize(PdfPageSize.A4);
               
            })
            .DefaultFonts(fonts =>
            {
                fonts.Path(AppPath.ApplicationPath + "\\Fonts\\BNAZANIN.TTF",
                                  AppPath.ApplicationPath + "\\Fonts\\TIMES.TTF");
                fonts.Size(20);
            })
            .PagesFooter(footer =>
            {
                footer.DefaultFooter("");
                footer.PdfFont.Size = 8;

            })
            .PagesHeader(header =>
            {
                if (type == 1)
                {
                    header.CustomHeader(_customHeader);
                }
                else
                {
                    header.DefaultHeader(h => h.Message("mohsen"));
                }

            })
             .MainTableTemplate(template =>
             {
                 template.BasicTemplate(BasicTemplate.SilverTemplate);
             })
            .MainTablePreferences(table =>
            {
                table.ColumnsWidthsType(TableColumnWidthType.Relative);


            })
            .MainTableDataSource(dataSource =>
            {
               
                
                var ctx = new ClearanceEntities();




                var list = (from c in ctx.CLEARANCE_ITEMS
                            where c.CLEARANCE_REQUEST.REQUEST_ID == RequestId
                            select new
                            {
                                c.TARIFF_NO,
                                c.GOODS_DESCRIPTION,
                                vahed = c.QUANTITY,
                                c.PACKING_TYPES.PACKING_NAME,
                                c.GROSS_WEIGHT,
                                arzesh = (c.GOODS_PRICE * c.GOODS_CURRENCY_RATE) + (c.FREIGHT_PRICE * c.FREIGHT_CURRENCY_RATE),
                                hoghogh = " ",
                                sood = " "

                            }).ToList();
               



                dataSource.AnonymousTypeList(list );
            })

            .MainTableColumns(columns =>
            {
                columns.AddColumn(column =>
                {
                    column.PropertyName("TARIFF_NO");

                    column.CellsHorizontalAlignment(HorizontalAlignment.Center);
                    column.IsVisible(true);
                    column.Order(0);
                    column.Width(3);
                    column.HeaderCell("تعرفه");
                });
                columns.AddColumn(column =>
                {
                    column.PropertyName("GOODS_DESCRIPTION");
                    column.CellsHorizontalAlignment(HorizontalAlignment.Center);

                    column.IsVisible(true);
                    column.Order(1);
                    column.Width(5);
                    column.HeaderCell("نام کالا");
                    column.ColumnItemsTemplate(template =>
                        {
                            new CellBasicProperties
                                {
                                  
                                    //PdfFontStyle = DocumentFontStyle.Bold | DocumentFontStyle.Underline,
                                    //FontColor = new BaseColor(System.Drawing.Color.Brown),
                                    //BackgroundColor = new BaseColor(System.Drawing.Color.Yellow)
                                };
                            return;
                        });

                });
                columns.AddColumn(column =>
                {
                    column.PropertyName("vahed");
                    column.CellsHorizontalAlignment(HorizontalAlignment.Center);
                    column.IsVisible(true);
                    column.Order(1);
                    column.Width(5);
                    column.HeaderCell("واحد");

                });
                columns.AddColumn(column =>
                {
                    column.PropertyName("GROSS_WEIGHT");
                    column.CellsHorizontalAlignment(HorizontalAlignment.Center);
                    column.IsVisible(true);
                    column.Order(1);
                    column.Width(5);
                    column.HeaderCell("وزن ناخالص");

                });
                columns.AddColumn(column =>
                {
                    column.PropertyName("arzesh");
                    column.CellsHorizontalAlignment(HorizontalAlignment.Center);
                    column.IsVisible(true);
                    column.Order(1);
                    column.Width(5);
                    column.HeaderCell("ارزش دلاری");

                });
                columns.AddColumn(column =>
                {
                    column.PropertyName("hoghogh");
                    column.CellsHorizontalAlignment(HorizontalAlignment.Center);
                    column.IsVisible(true);
                    column.Order(1);
                    column.Width(3);
                    column.HeaderCell("حقوق گمرکی");

                });
                columns.AddColumn(column =>
                {
                    column.PropertyName("sood");
                    column.CellsHorizontalAlignment(HorizontalAlignment.Center);
                    column.IsVisible(true);
                    column.Order(1);
                    column.Width(3);
                    column.HeaderCell("سود بازرگانی");

                });


            })
            .MainTableEvents(events =>
            {
                events.DataSourceIsEmpty(message: "There is no data available to display.");

}

                 events.DocumentClosing(args =>
            {
                if (HttpContext.Current == null || HttpContext.Current.Response == null) return;

                // close the document without closing the underlying stream
                args.PdfWriter.CloseStream = false;
                args.PdfDoc.Close();
                args.PdfStreamOutput.Position = 0;

                // write pdf bytes to output stream
                var pdf = ((MemoryStream)args.PdfStreamOutput).ToArray();
                string str = Guid.NewGuid().ToString();
                HttpContext.Current.Response.Cache.SetCacheability(HttpCacheability.NoCache);
                HttpContext.Current.Response.ContentType = MediaTypeNames.Application.Pdf;
                HttpContext.Current.Response.AddHeader("Content-Length", pdf.Length.ToString());
                HttpContext.Current.Response.AddHeader("content-disposition", "attachment;filename=" + str + ".pdf");
                HttpContext.Current.Response.Buffer = true;
                HttpContext.Current.Response.Clear();
                HttpContext.Current.Response.OutputStream.Write(pdf, 0, pdf.Length);
                HttpContext.Current.Response.OutputStream.Flush();
                HttpContext.Current.Response.OutputStream.Close();
                HttpContext.Current.Response.End();
            });
        })

           .Generate(data => data.AsPdfStream(new MemoryStream()));

int[] numbers = new int[] {6, 5, 1, 9, 18, 5, 3, 21};

var coll1 = numbers.Take(2);
var coll2 = numbers.Skip(2).Take(2);
var coll3 = numbers.Skip(4).Take(2);
var coll4 = numbers.Skip(6).Take(2);

static class LinqExtensions
{
    public static IEnumerable<IEnumerable<T>> Split<T>(this IEnumerable<T> list, int parts)
    {
        int i = 0;
        var splits = from item in list
                     group item by i++ % parts into part
                     select part.AsEnumerable();
        return splits;
    }
}

List<int> numbers = new();

int counter = 0;
Random rand = new(DateTime.Now.Millisecond);
while(counter < 100)
{
    numbers.Add(rand.Next(1, 1000));
    counter++;
}

IEnumerable<int[]> sublists = numbers.Chunk(8);

    public class EfRolesService : IRolesService
    {
        readonly IUnitOfWork _uow;
        readonly IDbSet<Role> _roles;
        public EfRolesService(IUnitOfWork uow)
        {
            _uow = uow;
            _roles = _uow.Set<Role>();
        }

        public IList<Role> FindUserRoles(int userId)
        {
            var query = from role in _roles
                        from user in role.Users
                        where user.Id == userId
                        select role;

            return query.OrderBy(x => x.Name).ToList();
        }

        public string[] GetRolesForUser(int userId)
        {
            var roles = FindUserRoles(userId);
            if (roles == null || !roles.Any())
            {
                return new string[] { };
            }

            return roles.Select(x => x.Name).ToArray();
        }

        public bool IsUserInRole(int userId, string roleName)
        {
            var query = from role in _roles
                        where role.Name == roleName
                        from user in role.Users
                        where user.Id == userId
                        select role;
            var userRole = query.FirstOrDefault();
            return userRole != null;
        }
    }

    public class CustomRoleProvider : RoleProvider
    {
        public override bool IsUserInRole(string username, string roleName)
        {
            // Since the role provider, in this case the CustomRoleProvider is instantiated by 
            // the ASP.NET framework the best solution is to use the service locator pattern. 
            // The service locator pattern is normally considered to be an anti-pattern but 
            // sometimes you have to be pragmatic and accept the limitation on the framework 
            // that is being used (in this case the ASP.NET framework).

            var rolesService = ObjectFactory.GetInstance<IRolesService>();
            return rolesService.IsUserInRole(username.ToInt(), roleName);
        }

        public override string[] GetRolesForUser(string username)
        {
            var rolesService = ObjectFactory.GetInstance<IRolesService>();
            return rolesService.GetRolesForUser(username.ToInt());
        }
// مابقی نیازی نیست پیاده سازی شوند

When we started the Google Code project hosting service in 2006, the world of project hosting was limited. We were worried about reliability and stagnation, so we took action by giving the open source community another option to choose from. Since then, we’ve seen a wide variety of better project hosting services such as GitHub and Bitbucket bloom. Many projects moved away from Google Code to those other systems. To meet developers where they are, we ourselves migrated nearly a thousand of our own open source projects from Google Code to GitHub. 

 public partial class product : PageStateMachine
 {
  protected void btnSave_Click(object sender, EventArgs e)
  {
    Go(PageState.Save);
  }
  protected override ... Save()
  {
    try
    {
        if (Id > 0)
        {
            // get from bank and update
        }
        else
        {
            // create new one and add it to context
        }
    }
    catch (Exception ex)
    {
        // handle exception
    }
  }
  
  protected void btnSelect_Click(object sender, EventArgs e)
  {
    Go(PageState.Select);
  }
  protected override ... Select()
  {
    try
    {
      // get from bank and show in details
    }
    catch (Exception ex)
    {
        // handle exception
    }
  }
  
  protected void btnDelete_Click(object sender, EventArgs e)
  {
    Go(PageState.Delete);
  }
  protected override StateMachineMessage Delete()
  {
    try
    {
      // remove from bank
    }
    catch (Exception ex)
    {
        // handle exception
    }
  }
 }
 

• Smart support for C# 8.0 language features such as indices, ranges, and unmanaged generic structs, as well as many new quick-fixes, inspections, and context actions. 

USE [WideWorldImporters];
GO

SET STATISTICS IO ON;
GO


/*
What's are the inner and outer
data sets?
*/
SELECT
    [ol].[OrderLineID],
    [o].[CustomerID]
FROM [Sales].[OrderLines] [ol]
    INNER JOIN [Sales].[Orders] [o]
    ON [ol].[OrderID] = [o].[OrderID]
WHERE [o].[CustomerID] = 185;
GO

SELECT
    [ol].[OrderLineID],
    [o].[CustomerID]
FROM [Sales].[OrderLines] [ol]
    INNER JOIN [Sales].[Orders] [o]
    ON [ol].[OrderID] = [o].[OrderID]
WHERE [o].[CustomerID] = 185
OPTION (FORCE ORDER);

SELECT
    [ol].[OrderLineID],
    [o].[CustomerID]
FROM [Sales].[OrderLines] [ol]
    INNER LOOP JOIN [Sales].[Orders] [o]
    ON [ol].[OrderID] = [o].[OrderID]
WHERE [o].[CustomerID] = 185
OPTION (FORCE ORDER);
GO

SELECT
    [ContactPersonID],
    [OrderDate],
    [CustomerPurchaseOrderNumber]
FROM [Sales].[Orders]
WHERE [ContactPersonID] = 3144;

ALTER TABLE [Sales].[Orders] ADD  CONSTRAINT [PK_Sales_Orders] PRIMARY KEY CLUSTERED 
(
[OrderID] ASC
)

GO

CREATE NONCLUSTERED INDEX [FK_Sales_Orders_ContactPersonID] ON [Sales].[Orders]
(
[ContactPersonID] ASC
)

CREATE NONCLUSTERED INDEX [FK_Sales_Orders_ContactPersonID]
ON [Sales].[Orders] (
[ContactPersonID] ASC
)
INCLUDE (
[OrderDate], [CustomerPurchaseOrderNumber]
)
WITH (DROP_EXISTING = ON)
ON [USERDATA];
GO

SELECT
    [ContactPersonID],
    [OrderDate],
    [CustomerPurchaseOrderNumber]
FROM [Sales].[Orders]
WHERE [ContactPersonID] = 3144;

USE [WideWorldImporters]
GO

DROP TABLE [Sales].[Copy_Orders]
GO

SELECT *
INTO [Sales].[Copy_Orders]
FROM [Sales].[Orders];
GO

CREATE NONCLUSTERED INDEX [NCI_Copy_Orders_ContactPersonID]
ON [Sales].[Copy_Orders] (
[ContactPersonID]
);
GO

SELECT
    [ContactPersonID],
    [OrderDate],
    [CustomerPurchaseOrderNumber]
FROM [Sales].[Copy_Orders]
WHERE [ContactPersonID] = 3144;

CREATE NONCLUSTERED INDEX [NCI_Copy_Orders_ContactPersonID]
ON [Sales].[Copy_Orders] (
[ContactPersonID] ASC
)
INCLUDE (
[OrderDate], [CustomerPurchaseOrderNumber]
)
WITH (DROP_EXISTING = ON)
ON [USERDATA];
GO