namespace PdfReportSamples.Models
{
    public class Task
    {
        public int Id { set; get; }
        public string Name { set; get; }
        public int PercentCompleted { set; get; }
        public bool IsActive { set; get; }
        public User Assignee { set; get; }
    }
}

using System;

namespace PdfReportSamples.Models
{
    public class User
    {
        public int Id { set; get; }
        public string Name { set; get; }
        public string LastName { set; get; }
        public long Balance { set; get; }
        public DateTime RegisterDate { set; get; }
    }
}

 column.PropertyName<Task>(x => x.Assignee.Name) 

using System;
using System.Collections.Generic;
using System.Drawing;
using PdfReportSamples.Models;
using PdfRpt.Core.Contracts;
using PdfRpt.FluentInterface;

namespace PdfReportSamples.CustomHeaderFooter
{
    public class CustomHeaderFooterPdfReport
    {
        readonly CustomHeader _customHeader = new CustomHeader();
        public IPdfReportData CreatePdfReport()
        {
            return new PdfReport().DocumentPreferences(doc =>
            {
                doc.RunDirection(PdfRunDirection.LeftToRight);
                doc.Orientation(PageOrientation.Portrait);
                doc.PageSize(PdfPageSize.A4);
                doc.DocumentMetadata(new DocumentMetadata { Author = "Vahid", Application = "PdfRpt", Keywords = "Test", Subject = "Test Rpt", Title = "Test" });
            })
            .DefaultFonts(fonts =>
            {
                fonts.Path(Environment.GetEnvironmentVariable("SystemRoot") + "\\fonts\\tahoma.ttf",
                                  Environment.GetEnvironmentVariable("SystemRoot") + "\\fonts\\verdana.ttf");
            })
            .PagesFooter(footer =>
            {
                footer.CustomFooter(new CustomFooter(footer.PdfFont, PdfRunDirection.LeftToRight));
            })
            .PagesHeader(header =>
            {
                header.CustomHeader(_customHeader);
            })
            .MainTableTemplate(template =>
            {
                template.BasicTemplate(BasicTemplate.SilverTemplate);
            })
            .MainTablePreferences(table =>
            {
                table.ColumnsWidthsType(TableColumnWidthType.Relative);
                table.MultipleColumnsPerPage(new MultipleColumnsPerPage
                {
                    ColumnsGap = 22,
                    ColumnsPerPage = 2,
                    ColumnsWidth = 250,
                    IsRightToLeft = false,
                    TopMargin = 7
                });
            })
            .MainTableDataSource(dataSource =>
            {
                var rows = new List<Task>();
                var rnd = new Random();
                for (int i = 1; i < 210; i++)
                {
                    rows.Add(new Task
                    {
                        Assignee = new User
                        {
                            Id = i,
                            Name = "user-" + i
                        },
                        IsActive = rnd.Next(0, 2) == 1 ? true : false,
                        Name = "task-" + i
                    });
                }
                dataSource.StronglyTypedList(rows);
            })
            .MainTableColumns(columns =>
            {
                columns.AddColumn(column =>
                {
                    column.PropertyName("rowNo");
                    column.IsRowNumber(true);
                    column.CellsHorizontalAlignment(HorizontalAlignment.Center);
                    column.IsVisible(true);
                    column.Order(0);
                    column.Width(1);
                    column.HeaderCell("#");
                });

                columns.AddColumn(column =>
                {
                    column.PropertyName<Task>(x => x.Name);
                    column.CellsHorizontalAlignment(HorizontalAlignment.Center);
                    column.IsVisible(true);
                    column.Order(1);
                    column.Width(3);
                    column.HeaderCell("Task Name");
                });

                columns.AddColumn(column =>
                {
                    column.PropertyName<Task>(x => x.Assignee.Name); // nested property support
                    column.CellsHorizontalAlignment(HorizontalAlignment.Center);
                    column.IsVisible(true);
                    column.Order(2);
                    column.Width(3);
                    column.HeaderCell("Assignee");
                });

                columns.AddColumn(column =>
                {
                    column.PropertyName<Task>(x => x.IsActive);
                    column.CellsHorizontalAlignment(HorizontalAlignment.Center);
                    column.IsVisible(true);
                    column.Order(3);
                    column.Width(2);
                    column.HeaderCell("Active");
                    column.ColumnItemsTemplate(template =>
                    {
                        template.Checkmark(checkmarkFillColor: Color.Green, crossSignFillColor: Color.DarkRed);
                    });
                });
            })
            .MainTableEvents(events =>
            {
                events.DataSourceIsEmpty(message: "There is no data available to display.");
            })
            .Export(export =>
            {
                export.ToExcel();
            })
            .Generate(data => data.AsPdfFile(AppPath.ApplicationPath + "\\Pdf\\CustomHeaderFooterPdfReportSample.pdf"));
        }
    }
}

using System.Collections.Generic;
using iTextSharp.text;
using iTextSharp.text.pdf;
using PdfRpt.Core.Contracts;
using PdfRpt.Core.Helper;

namespace PdfReportSamples.CustomHeaderFooter
{
    public class CustomHeader : IPageHeader
    {
        public PdfPTable RenderingGroupHeader(Document pdfDoc, PdfWriter pdfWriter, IList<CellData> rowdata, IList<SummaryCellData> summaryData)
        {
            return null;
        }

        Image _image;
        public PdfPTable RenderingReportHeader(Document pdfDoc, PdfWriter pdfWriter, IList<SummaryCellData> summaryData)
        {
            if (_image == null) //cache is empty
            {
                var templatePath = AppPath.ApplicationPath + "\\data\\PdfHeaderTemplate.pdf";
                _image = PdfImageHelper.GetITextSharpImageFromPdfTemplate(pdfWriter, templatePath);
            }

            var table = new PdfPTable(1);
            var cell = new PdfPCell(_image, true) { Border = 0 };
            table.AddCell(cell);
            return table;
        }
    }
}

using System.Collections.Generic;
using iTextSharp.text;
using iTextSharp.text.pdf;
using PdfRpt.Core.Contracts;

namespace PdfReportSamples.CustomHeaderFooter
{
    public class CustomFooter : IPageFooter
    {
        PdfContentByte _pdfContentByte;
        readonly IPdfFont _pdfRptFont;
        readonly Font _font;
        readonly PdfRunDirection _direction;
        PdfTemplate _template;

        public CustomFooter(IPdfFont pdfRptFont, PdfRunDirection direction)
        {
            _direction = direction;
            _pdfRptFont = pdfRptFont;
            _font = _pdfRptFont.Fonts[0];
        }

        public void ClosingDocument(PdfWriter writer, Document document, IList<SummaryCellData> columnCellsSummaryData)
        {
            _template.BeginText();
            _template.SetFontAndSize(_pdfRptFont.Fonts[0].BaseFont, 8);
            _template.SetTextMatrix(0, 0);
            _template.ShowText((writer.PageNumber - 1).ToString());
            _template.EndText();
        }

        public void PageFinished(PdfWriter writer, Document document, IList<SummaryCellData> columnCellsSummaryData)
        {
            var pageSize = document.PageSize;
            var text = "Page " + writer.PageNumber + " / ";
            var textLen = _font.BaseFont.GetWidthPoint(text, _font.Size);
            var center = (pageSize.Left + pageSize.Right) / 2;
            var align = _direction == PdfRunDirection.RightToLeft ? Element.ALIGN_RIGHT : Element.ALIGN_LEFT;

            ColumnText.ShowTextAligned(
                        canvas: _pdfContentByte,
                        alignment: align,
                        phrase: new Phrase(text, _font),
                        x: center,
                        y: pageSize.GetBottom(25),
                        rotation: 0,
                        runDirection: (int)_direction,
                        arabicOptions: 0);

            var x = _direction == PdfRunDirection.RightToLeft ? center - textLen : center + textLen;
            _pdfContentByte.AddTemplate(_template, x, pageSize.GetBottom(25));
        }

        public void DocumentOpened(PdfWriter writer, IList<SummaryCellData> columnCellsSummaryData)
        {
            _pdfContentByte = writer.DirectContent;
            _template = _pdfContentByte.CreateTemplate(50, 50);
        }
    }
}

using System.Collections.Generic;
using iTextSharp.text;
using iTextSharp.text.pdf;

namespace PdfRpt.Core.Contracts
{
    public interface IPageHeader
    {
        PdfPTable RenderingGroupHeader(Document pdfDoc, PdfWriter pdfWriter, IList<CellData> newGroupInfo, IList<SummaryCellData> summaryData);

        PdfPTable RenderingReportHeader(Document pdfDoc, PdfWriter pdfWriter, IList<SummaryCellData> summaryData);
    }
}

using iTextSharp.text;
using iTextSharp.text.pdf;
using System.Collections.Generic;

namespace PdfRpt.Core.Contracts
{
    public interface IPageFooter
    {
        void DocumentOpened(PdfWriter writer, IList<SummaryCellData> columnCellsSummaryData);

        void PageFinished(PdfWriter writer, Document document, IList<SummaryCellData> columnCellsSummaryData);

        void ClosingDocument(PdfWriter writer, Document document, IList<SummaryCellData> columnCellsSummaryData);
    }
}

readonly CustomHeader _customHeader = new CustomHeader();
//...
.PagesFooter(footer =>
{
   footer.CustomFooter(new CustomFooter(footer.PdfFont, PdfRunDirection.LeftToRight));
})
.PagesHeader(header =>
{
  header.CustomHeader(_customHeader);
})

using System;
using System.ComponentModel.DataAnnotations;

namespace ImageGallery.WebApi.DomainClasses
{
    public class Image
    {
        [Key]
        public Guid Id { get; set; }

        [Required]
        [MaxLength(150)]
        public string Title { get; set; }

        [Required]
        [MaxLength(200)]
        public string FileName { get; set; }

        [Required]
        [MaxLength(50)]
        public string OwnerId { get; set; }
    }
}

public class GitHubClient
{
    public IReadOnlyCollection<GitHubRepositoryDto> GetRepositories()
    {
        using (var httpClient = new HttpClient{BaseAddress = new Uri(GitHubConstants.ApiBaseUrl)})
        {
            var result = httpClient.GetStringAsync(GitHubConstants.RepositoriesPath).Result;
            return JsonConvert.DeserializeObject<List<GitHubRepositoryDto>>(result);
        }
    }
}

public class GitHubClient : IGitHubClient
{
    public async Task<IReadOnlyCollection<GitHubRepositoryDto>> GetRepositories()
    {
        using (var httpClient = new HttpClient { BaseAddress = new Uri(GitHubConstants.ApiBaseUrl) })
        {
            var result = await httpClient.GetStringAsync(GitHubConstants.RepositoriesPath);
            return JsonConvert.DeserializeObject<List<GitHubRepositoryDto>>(result);
        }
    }
}

services.AddSingleton<GitHubClient>();

services.AddHttpClient("GitHub", x => { x.BaseAddress = new Uri(GitHubConstants.ApiBaseUrl); });
services.AddSingleton<GitHubClient>();

services.AddHttpClient<GitHubClient>(x => { x.BaseAddress = new Uri(GitHubConstants.ApiBaseUrl); });

public class GitHubClientFactory
{
    private readonly IServiceProvider _serviceProvider;
    public GitHubClientFactory(IServiceProvider serviceProvider)
    {
        _serviceProvider = serviceProvider;
    }

    public GitHubClient Create()
    {
        return _serviceProvider.GetRequiredService<GitHubClient>();
    }
}

services.AddHttpClient<GitHubClient>(x => { x.BaseAddress = new Uri(GitHubConstants.ApiBaseUrl); });
services.AddSingleton<GitHubClientFactory>();

public class GitHubClient : IGitHubClient
{
    private readonly HttpClient _httpClient;
    private readonly JsonSerializer _jsonSerializer;
    public GitHubClient(HttpClient httpClient, JsonSerializer jsonSerializer)
    {
        _httpClient = httpClient ?? throw new ArgumentNullException(nameof(httpClient));
        _jsonSerializer = jsonSerializer ?? throw new ArgumentNullException(nameof(jsonSerializer));
    }

    public async Task<IReadOnlyCollection<GitHubRepositoryDto>> GetRepositories()
    {
        var request = CreateRequest();
        var result = await _httpClient.SendAsync(request, HttpCompletionOption.ResponseContentRead);
        using (var responseStream = await result.Content.ReadAsStreamAsync())
        {
            using (var streamReader = new StreamReader(responseStream))
            using (var jsonTextReader = new JsonTextReader(streamReader))
            {
                return _jsonSerializer.Deserialize<List<GitHubRepositoryDto>>(jsonTextReader);
            }
        }
    }

    private static HttpRequestMessage CreateRequest()
    {
        return new HttpRequestMessage(HttpMethod.Get, GitHubConstants.RepositoriesPath);
    }
}

services.AddHttpClient<GitHubClient>(x => { x.BaseAddress = new Uri(GitHubConstants.ApiBaseUrl); });
services.AddSingleton<GitHubClientFactory>();
services.AddSingleton<JsonSerializer>();

var result = await _httpClient.SendAsync(request, HttpCompletionOption.ResponseContentRead);

var result = await _httpClient.SendAsync(request, HttpCompletionOption.ResponseHeadersRead);

  <system.web>
    <machineKey decryptionKey="Enter decryption Key here" 
                validation="SHA1" 
                validationKey="Enter validation Key here" />
  </system.web>

    protected static string GenerateKey(int length)
    {
        RNGCryptoServiceProvider rngCsp = new RNGCryptoServiceProvider();
        byte[] buff = new byte[length];
        rngCsp.GetBytes(buff);
        StringBuilder sb = new StringBuilder(buff.Length * 2);
        for (int i = 0; i < buff.Length; i++)
            sb.Append(string.Format("{0:X2}", buff[i]));
        return sb.ToString();
    }

    string validationKey = GenerateKey(64);
    string  decryptionKey = GenerateKey(32);

  using (var client = new HttpClient()) 
....
....
using (var response = await client.SendAsync(httpMessage).ConfigureAwait(false))

• String: این نوع پرکاربردترین نوع داده برای ذخیره اطلاعات است. رشته در MongoDB باید بصورت یونیکد (utf-8) معتبر باشد.
  
• Integer: این نوع برای ذخیره کردن یک مقدار عددی استفاده می‌شود. Integer بسته به نوع سرور می‌تواند 32 یا 64 بیت باشد.
  
• Boolean: این نوع برای ذخیره کردن یک مقدار بولی (true/false) استفاده می‌شود.
  
• Double: این نوع برای مقادیر با ممیز شناور استفاده می‌شود.
  
• کلیدهای Min/Max: این نوع برای مقایسه یک مقدار با کمترین یا بیشترین عناصر BSON استفاده می‌شود.
  
• Array: این نوع برای ذخیره آرایه‌ها یا لیست یا چندین مقدار در یک کلید استفاده می‌شود.
  
• Timestamp: این نوع می‌تواند برای ضبط زمان تغییرات (مثلا وقتی یک سند درج می‌شود یا تغییر می‌کند) مفید باشد.
  
• Object: این نوع برای سندهای توکار استفاده می‌شود.
  
• Null: این نوع برای ذخیره مقدار تهی (Null) استفاده می‌شود.
  
• Symbol: این نوع بطور یکسان برای ذخیره رشته استفاده می‌شود، اما عموما برای زبان‌هایی که از یک نوع نماد (Symbol) مشخص استفاده می‌کنند تعبیه شده است.
  
• Date: این نوع برای ذخیره تاریخ یا زمان جاری به فرمت زمان در یونیکس (UNIX) استفاده می‌شود. با ساخت یک شی از نوع Date و ارسال روز، ماه و سال به آن می‌توانید تاریخ مشخص خود را داشته باشید.
  
• Object ID: ای نوع برای ذخیره سازی شناسه سند استفاه می‌شود.
  
• Binary Data: این نوع برای ذخیره سازی داده باینری استفاده می‌شود.
  
• Code: این نوع برای ذخیره سازی کد جاوا اسکریپت داخل سند استفاده می‌شود.
  
• Regular Expression: این نوع برای ذخیره سازی عبارت باقاعده استفاده می‌شود.
  

>db.COLLECTION_NAME.insert(document)

>db.mycol.insert({
   _id: ObjectId(7df78ad8902c),
   title: 'MongoDB Overview', 
   description: 'MongoDB is no sql database',
   by: 'tutorials point',
   url: 'http://www.tutorialspoint.com',
   tags: ['mongodb', 'database', 'NoSQL'],
   likes: 100
})

>db.post.insert([
{
   title: 'MongoDB Overview', 
   description: 'MongoDB is no sql database',
   by: 'tutorials point',
   url: 'http://www.tutorialspoint.com',
   tags: ['mongodb', 'database', 'NoSQL'],
   likes: 100
},
{
   title: 'NoSQL Database', 
   description: 'NoSQL database doesn't have tables',
   by: 'tutorials point',
   url: 'http://www.tutorialspoint.com',
   tags: ['mongodb', 'database', 'NoSQL'],
   likes: 20, 
   comments: [
      {
         user:'user1',
         message: 'My first comment',
         dateCreated: new Date(2013,11,10,2,35),
         like: 0 
      }
   ]
}
])

using System.Collections.Generic;
using System.IO;
using System.Web;
using System.Web.Script.Serialization;

namespace OrbitWebformsTest
{
    public class Picture
    {
        public string Title { set; get; }
        public string Path { set; get; }
    }

    public class OrbitHandler : IHttpHandler
    {
        IList<Picture> PicturesDataSource()
        {
            var results = new List<Picture>();
            var path = HttpContext.Current.Server.MapPath("~/Images");

            foreach (var item in Directory.GetFiles(path, "*.*"))
            {
                var name = Path.GetFileName(item);
                results.Add(new Picture
                {
                    Path = /*"Images/" + name*/ name,
                    Title = name
                });
            }

            return results;
        }

        public void ProcessRequest(HttpContext context)
        {
            var items = PicturesDataSource();
            var json = /*new JavaScriptSerializer().Serialize(items)*/ string.Empty;
            throw new InvalidDataException("همینطوری");
            context.Response.ContentType = "text/plain";
            context.Response.Write(json);
        }

        public bool IsReusable
        { 
            get { return false; } 
        }
    }
}

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="default.aspx.cs" Inherits="OrbitWebformsTest._default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <link href="Content/orbit-1.2.3.css" rel="stylesheet" type="text/css" />
    <script src="Script/jquery-1.5.1.min.js" type="text/javascript"></script>
    <script src="Scripts/jquery.orbit-1.2.3.min.js" type="text/javascript"></script>
</head>
<body>
    <form id="form1" runat="server">
    <div id="featured">
    </div>
    </form>
    <script type="text/javascript">
        $(function () {
            $.ajax({
                url: "Handler.ashx",
                contentType: "application/json; charset=utf-8",
                success: function (data) {
                    $.each(data, function (i, b) {
                        var str = '<img src="' + b.Path + '" alt="' + b.Title + '"/>';
                        $("#featured").append(str);
                    });
                    $('#featured').orbit();
                },
                dataType: "json"
            });
        });
    </script>
</body>
</html>

 <script src="Scripts/jquery-1.5.1.min.js" type="text/javascript"></script>

        public void ProcessRequest(HttpContext context)
        {
            var items = PicturesDataSource();
            var json = new JavaScriptSerializer().Serialize(items);            
            context.Response.ContentType = "text/plain";
            context.Response.Write(json);
        }

        IList<Picture> PicturesDataSource()
        {
            var results = new List<Picture>();
            var path = HttpContext.Current.Server.MapPath("~/Images");

            foreach (var item in Directory.GetFiles(path, "*.*"))
            {
                var name = Path.GetFileName(item);
                results.Add(new Picture
                {
                    Path = "Images/" + name,
                    Title = name
                });
            }

            return results;
        }

import axios from "axios";

  componentDidMount() {
    const promise = axios.get("https://localhost:5001/api/posts");
    console.log(promise);
  }

public void ConfigureServices(IServiceCollection services)
{
    services.AddCors(options =>
    {
       options.AddPolicy("ReactCorsPolicy",
          builder => builder
            .AllowAnyMethod()
            .AllowAnyHeader()
            .WithOrigins("http://localhost:3000")
            .AllowCredentials()
            .Build());
    });
    services.AddSingleton<IPostsDataSource, PostsDataSource>();
    services.AddControllers();
}

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
    if (env.IsDevelopment())
    {
      app.UseDeveloperExceptionPage();
    }

    app.UseHttpsRedirection();

    app.UseRouting();

    //app.UseAuthentication();
    //app.UseAuthorization();

    app.UseCors("ReactCorsPolicy");

    app.UseAuthorization();

    app.UseEndpoints(endpoints =>
    {
       endpoints.MapControllers();
    });
}

  async componentDidMount() {
    const promise = axios.get("https://localhost:5001/api/posts");
    console.log(promise);
    const response = await promise;
    console.log(response);
  }

  async componentDidMount() {
    const response = await axios.get("https://localhost:5001/api/posts");
    console.log(response);
  }

class App extends Component {
  state = {
    posts: []
  };

  async componentDidMount() {
    const { data: posts } = await axios.get("https://localhost:5001/api/posts");
    this.setState({ posts }); // = { posts: posts }
  }

const apiEndpoint = "https://localhost:5001/api/posts";

class App extends Component {
  state = {
    posts: []
  };

  async componentDidMount() {
    const { data: posts } = await axios.get(apiEndpoint);
    this.setState({ posts });
  }

  handleAdd = async () => {
    const newPost = {
      title: "new Title ...",
      body: "new Body  ...",
      userId: 1
    };
    const { data: post } = await axios.post(apiEndpoint, newPost);
    console.log(post);

    const posts = [post, ...this.state.posts];
    this.setState({ posts });
  };

  handleUpdate = async post => {
    post.title = "Updated";
    const { data: updatedPost } = await axios.put(
      `${apiEndpoint}/${post.id}`,
      post
    );
    console.log(updatedPost);

    const posts = [...this.state.posts];
    const index = posts.indexOf(post);
    posts[index] = { ...post };
    this.setState({ posts });
  };

  handleDelete = async post => {
    await axios.delete(`${apiEndpoint}/${post.id}`);

    const posts = this.state.posts.filter(item => item.id !== post.id);
    this.setState({ posts });
  };