1. یک ASP.NET Web Application با نام NorthwindService ایجاد نمایید و بر روی پروژه راست کلیک کنید و از منوی Add گزینه New Item را انتخاب نمایید  از پنجره باز شده از دسته Data گزینه ADO.NET Entity Data Model  را انتخاب و نام ان را Northwind بگذارید.
   
2. از پنجره باز شده Generate from Databaseرا انتخاب و با انتخاب کانکشن از نوع Sql Server Compact 4  اتصال به فایل Northwind.sdf را انتخاب تا کلاس‌های لازم تولید شود.
   
3. برای تولید data service بر روی پروژه راست کلیک کنید و از منوی Add گزینه New Item را انتخاب نمایید از پنجره باز شده گزینه  WCF Data Service را انتخاب و نام آن را Northwind.svc بگذارید. کد زیر خودکار تولید می‌شود
   

    public class Northwind : DataService< /* TODO: put your data source class name here */ >
       {
           // This method is called only once to initialize service-wide policies.
           public static void InitializeService(DataServiceConfiguration config)
           {
               // TODO: set rules to indicate which entity sets and service operations are visible, updatable, etc.
               // Examples:
               // config.SetEntitySetAccessRule("MyEntityset", EntitySetRights.AllRead);
               // config.SetServiceOperationAccessRule("MyServiceOperation", ServiceOperationRights.All);
               config.DataServiceBehavior.MaxProtocolVersion = DataServiceProtocolVersion.V3;
           }
       }

4. برای دسترسی به موجودیت‌های Northwind بجای عبارت put your data source نام مدل را تایپ کنید
   

   public class Northwind : DataService<NorthwindEntities>

5. برای فعال کردن دسترسی به منابع data source متغیر config کلاس DataServiceConfiguration را بصورت زیر تنظیم نمایید. تابع SetEntitySetAccessRule با گرفتن نام موجودیت و نحوه دسترسی امکان استفاده از این موجودیت را با استفاده از WCF Data Service فزاهم می‌نمایید. مثلا در زیر امکان دسترسی به موجودیت Orders را با امکان خواندن همه، نوشتن ادقامی و جایگزین فراهم نموده است.
   

   config.SetEntitySetAccessRule("Orders", EntitySetRights.AllRead 
        | EntitySetRights.WriteMerge 
        | EntitySetRights.WriteReplace );
   config.SetEntitySetAccessRule("Customers", EntitySetRights.AllRead);

6. اگر بخواهیم امکان خواندن همه موجودیت‌ها را فراهم کنیم از کد زیر می‌توانیم استفاده نمایید که * به معنای همه موجودیت‌های data model می‌باشد
   

   config.SetEntitySetAccessRule("*", EntitySetRights.AllRead);

1. بر روی Solution پروژه جاری راست کلیک و از منوی Add گزینه New Project را انتخاب و یک پروژه از نوع WPF Application با نام NorthwindClient ایجاد نمایید.
2. در پنجره MainWindow مانند کد زیر از یک Combobox و DataGrid برای نمایش اطلاعات استفاده نمایید
   

       <Window x:Class="MainWindow"
       xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
       xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
       Title="Northwind Orders" Height="335" Width="425" 
           Name="OrdersWindow" Loaded="Window1_Loaded">
       <Grid Name="orderItemsGrid">
           <ComboBox DisplayMemberPath="Order_ID" ItemsSource="{Binding}"
                     IsSynchronizedWithCurrentItem="true" 
                     Height="23" Margin="92,12,198,0" Name="comboBoxOrder" VerticalAlignment="Top"/>
           <DataGrid ItemsSource="{Binding Path=Order_Details}"  
                     CanUserAddRows="False" CanUserDeleteRows="False"  
                     Name="orderItemsDataGrid" Margin="34,46,34,50"
                     AutoGenerateColumns="False">
               <DataGrid.Columns>
                   <DataGridTextColumn  Header="Product" Binding="{Binding Product_ID, Mode=OneWay}" />
                   <DataGridTextColumn  Header="Quantity" Binding="{Binding Quantity, Mode=TwoWay}" />
                   <DataGridTextColumn  Header="Price" Binding="{Binding UnitPrice, Mode=TwoWay}" />
                   <DataGridTextColumn  Header="Discount" Binding="{Binding Discount, Mode=TwoWay}" />                
               </DataGrid.Columns>     
           </DataGrid>
           <Label Height="28" Margin="34,12,0,0" Name="orderLabel" VerticalAlignment="Top" 
                  HorizontalAlignment="Left" Width="65">Order:</Label>
           <StackPanel Name="Buttons" Orientation="Horizontal" HorizontalAlignment="Right" 
                       Height="40" Margin="0,257,22,0">
               <Button Height="23" HorizontalAlignment="Right" Margin="0,0,12,12" 
                   Name="buttonSave" VerticalAlignment="Bottom" Width="75" 
                       Click="buttonSaveChanges_Click">Save Changes
               </Button>
               <Button Height="23" Margin="0,0,12,12" 
                   Name="buttonClose" VerticalAlignment="Bottom" Width="75" 
                       Click="buttonClose_Click">Close</Button>
           </StackPanel>
       </Grid>
   </Window>

   
   
3. برای ارجاع به wcf data service بر روی پروژه راست کلیک و گزینه Add Service Reference را انتخاب نمایید در پنجره باز شده گزینه Discover را انتخاب تا سرویس را یافته و نام Namespase را Northwind بگذارید.
4. حال مانند کد زیر یک شی از مدل NorthwindEntities با آدرس وب سرویس ایجاد نموده ایم و نتیحه کوئری با استفاده از کلاس DataServiceCollection به DataContext گرید انتصاب داده ایم که البته پیش فرض آن آشنایی با DataBinding در WPF است.
   

           private NorthwindEntities context;
           private string customerId = "ALFKI";
           private Uri svcUri = new Uri("http://localhost:8358/Northwind.svc");
   
           private void Window1_Loaded(object sender, RoutedEventArgs e)
           {
               try
               {
                   context = new NorthwindEntities(svcUri);
                   var ordersQuery = from o in context.Orders.Expand("Order_Details")
                                     where o.Customers.Customer_ID == customerId
                                     select o;
                   DataServiceCollection<Orders> customerOrders = new DataServiceCollection<Orders>(ordersQuery);
                   this.orderItemsGrid.DataContext = customerOrders;
               }
               catch (Exception ex)
               {
                   MessageBox.Show(ex.ToString());
               }
           }
   

5. با صدا زدن تابع SaveChanges مدل می‌توانید تغییرات را در پایگاه داده ذخیره نمایید.
   

   private void buttonSaveChanges_Click(object sender, RoutedEventArgs e)
   {
       try
       {
           context.SaveChanges();
       }
       catch (DataServiceRequestException ex)
       {
           MessageBox.Show(ex.ToString());
   
       }
   }

   
   

1. برنامه را اجرا نمایید تا خروجی کار را مشاهده نمایید. مقادیر Quantity را تغییر دهید و دکمه Save Changes را انتخاب تا تغییرات دخیره شود.

using System.Collections.Generic;
using System.Linq;

namespace NumberToWordsLib
{
 /// <summary>
 /// Number to word languages
 /// </summary>
 public enum Language
 {
  /// <summary>
  /// English Language
  /// </summary>
  English,

  /// <summary>
  /// Persian Language
  /// </summary>
  Persian
 }

 /// <summary>
 /// Digit's groups
 /// </summary>
 public enum DigitGroup
 {
  /// <summary>
  /// Ones group
  /// </summary>
  Ones,

  /// <summary>
  /// Teens group
  /// </summary>
  Teens,

  /// <summary>
  /// Tens group
  /// </summary>
  Tens,

  /// <summary>
  /// Hundreds group
  /// </summary>
  Hundreds,

  /// <summary>
  /// Thousands group
  /// </summary>
  Thousands
 }

 /// <summary>
 /// Equivalent names of a group 
 /// </summary>
 public class NumberWord
 {
  /// <summary>
  /// Digit's group
  /// </summary>
  public DigitGroup Group { set; get; }

  /// <summary>
  /// Number to word language
  /// </summary>
  public Language Language { set; get; }

  /// <summary>
  /// Equivalent names
  /// </summary>
  public IList<string> Names { set; get; }
 }

 /// <summary>
 /// Convert a number into words
 /// </summary>
 public static class HumanReadableInteger
 {
  #region Fields (4)

  private static readonly IDictionary<Language, string> And = new Dictionary<Language, string>
  {
   { Language.English, " " },
   { Language.Persian, " و " } 
  };
  private static readonly IList<NumberWord> NumberWords = new List<NumberWord>
  {
   new NumberWord { Group= DigitGroup.Ones, Language= Language.English, Names=
    new List<string> { string.Empty, "One", "Two", "Three", "Four", "Five", "Six", "Seven", "Eight", "Nine" }},
   new NumberWord { Group= DigitGroup.Ones, Language= Language.Persian, Names=
    new List<string> { string.Empty, "یک", "دو", "سه", "چهار", "پنج", "شش", "هفت", "هشت", "نه" }},

   new NumberWord { Group= DigitGroup.Teens, Language= Language.English, Names=
    new List<string> { "Ten", "Eleven", "Twelve", "Thirteen", "Fourteen", "Fifteen", "Sixteen", "Seventeen", "Eighteen", "Nineteen" }},
   new NumberWord { Group= DigitGroup.Teens, Language= Language.Persian, Names=
    new List<string> { "ده", "یازده", "دوازده", "سیزده", "چهارده", "پانزده", "شانزده", "هفده", "هجده", "نوزده" }},

   new NumberWord { Group= DigitGroup.Tens, Language= Language.English, Names=
    new List<string> { "Twenty", "Thirty", "Forty", "Fifty", "Sixty", "Seventy", "Eighty", "Ninety" }},
   new NumberWord { Group= DigitGroup.Tens, Language= Language.Persian, Names=
    new List<string> { "بیست", "سی", "چهل", "پنجاه", "شصت", "هفتاد", "هشتاد", "نود" }},

   new NumberWord { Group= DigitGroup.Hundreds, Language= Language.English, Names=
    new List<string> {string.Empty, "One Hundred", "Two Hundred", "Three Hundred", "Four Hundred", 
     "Five Hundred", "Six Hundred", "Seven Hundred", "Eight Hundred", "Nine Hundred" }},
   new NumberWord { Group= DigitGroup.Hundreds, Language= Language.Persian, Names=
    new List<string> {string.Empty, "یکصد", "دویست", "سیصد", "چهارصد", "پانصد", "ششصد", "هفتصد", "هشتصد" , "نهصد" }},

   new NumberWord { Group= DigitGroup.Thousands, Language= Language.English, Names=
     new List<string> { string.Empty, " Thousand", " Million", " Billion"," Trillion", " Quadrillion", " Quintillion", " Sextillian",
   " Septillion", " Octillion", " Nonillion", " Decillion", " Undecillion", " Duodecillion", " Tredecillion",
   " Quattuordecillion", " Quindecillion", " Sexdecillion", " Septendecillion", " Octodecillion", " Novemdecillion",
   " Vigintillion", " Unvigintillion", " Duovigintillion", " 10^72", " 10^75", " 10^78", " 10^81", " 10^84", " 10^87",
   " Vigintinonillion", " 10^93", " 10^96", " Duotrigintillion", " Trestrigintillion" }},
   new NumberWord { Group= DigitGroup.Thousands, Language= Language.Persian, Names=
     new List<string> { string.Empty, " هزار", " میلیون", " میلیارد"," تریلیون", " Quadrillion", " Quintillion", " Sextillian",
   " Septillion", " Octillion", " Nonillion", " Decillion", " Undecillion", " Duodecillion", " Tredecillion",
   " Quattuordecillion", " Quindecillion", " Sexdecillion", " Septendecillion", " Octodecillion", " Novemdecillion",
   " Vigintillion", " Unvigintillion", " Duovigintillion", " 10^72", " 10^75", " 10^78", " 10^81", " 10^84", " 10^87",
   " Vigintinonillion", " 10^93", " 10^96", " Duotrigintillion", " Trestrigintillion" }},
  };
  private static readonly IDictionary<Language, string> Negative = new Dictionary<Language, string>
  {
   { Language.English, "Negative " },
   { Language.Persian, "منهای " } 
  };
  private static readonly IDictionary<Language, string> Zero = new Dictionary<Language, string>
  {
   { Language.English, "Zero" },
   { Language.Persian, "صفر" } 
  };

  #endregion Fields

  #region Methods (7)

  // Public Methods (5) 

  /// <summary>
  /// display a numeric value using the equivalent text
  /// </summary>
  /// <param name="number">input number</param>
  /// <param name="language">local language</param>
  /// <returns>the equivalent text</returns>
  public static string NumberToText(this int number, Language language)
  {
   return NumberToText((long)number, language);
  }


  /// <summary>
  /// display a numeric value using the equivalent text
  /// </summary>
  /// <param name="number">input number</param>
  /// <param name="language">local language</param>
  /// <returns>the equivalent text</returns>
  public static string NumberToText(this uint number, Language language)
  {
   return NumberToText((long)number, language);
  }

  /// <summary>
  /// display a numeric value using the equivalent text
  /// </summary>
  /// <param name="number">input number</param>
  /// <param name="language">local language</param>
  /// <returns>the equivalent text</returns>
  public static string NumberToText(this byte number, Language language)
  {
   return NumberToText((long)number, language);
  }

  /// <summary>
  /// display a numeric value using the equivalent text
  /// </summary>
  /// <param name="number">input number</param>
  /// <param name="language">local language</param>
  /// <returns>the equivalent text</returns>
  public static string NumberToText(this decimal number, Language language)
  {
   return NumberToText((long)number, language);
  }

  /// <summary>
  /// display a numeric value using the equivalent text
  /// </summary>
  /// <param name="number">input number</param>
  /// <param name="language">local language</param>
  /// <returns>the equivalent text</returns>
  public static string NumberToText(this double number, Language language)
  {
   return NumberToText((long)number, language);
  }

  /// <summary>
  /// display a numeric value using the equivalent text
  /// </summary>
  /// <param name="number">input number</param>
  /// <param name="language">local language</param>
  /// <returns>the equivalent text</returns>
  public static string NumberToText(this long number, Language language)
  {
   if (number == 0)
   {
    return Zero[language];
   }

   if (number < 0)
   {
    return Negative[language] + NumberToText(-number, language);
   }

   return wordify(number, language, string.Empty, 0);
  }
  // Private Methods (2) 

  private static string getName(int idx, Language language, DigitGroup group)
  {
   return NumberWords.Where(x => x.Group == group && x.Language == language).First().Names[idx];
  }

  private static string wordify(long number, Language language, string leftDigitsText, int thousands)
  {
   if (number == 0)
   {
    return leftDigitsText;
   }

   var wordValue = leftDigitsText;
   if (wordValue.Length > 0)
   {
    wordValue += And[language];
   }

   if (number < 10)
   {
    wordValue += getName((int)number, language, DigitGroup.Ones);
   }
   else if (number < 20)
   {
    wordValue += getName((int)(number - 10), language, DigitGroup.Teens);
   }
   else if (number < 100)
   {
    wordValue += wordify(number % 10, language, getName((int)(number / 10 - 2), language, DigitGroup.Tens), 0);
   }
   else if (number < 1000)
   {
    wordValue += wordify(number % 100, language, getName((int)(number / 100), language, DigitGroup.Hundreds), 0);
   }
   else
   {
    wordValue += wordify(number % 1000, language, wordify(number / 1000, language, string.Empty, thousands + 1), 0);
   }

   if (number % 1000 == 0) return wordValue;
   return wordValue + getName(thousands, language, DigitGroup.Thousands);
  }

  #endregion Methods
 }
}

Intent.ACTION_VIEW

Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(https://github.com);

startActivity(intent);

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="net.zenconsult.mobile.testapp" >
<permission android:name="net.zenconsult.mobile.testapp.permission.PURGE_DATABASE"
android:label="@string/label_purgeDatabase"
android:description="@string/description_purgeDatabase"
android:protectionLevel="dangerous" />
...
</manifest>

android:name <attribute>

android:label
android:description

<string name=" label_purgeDatabase ">purge the application database </string>
<string name="permdesc_callPhone">Allows the application to purge the core database of
the information store. Malicious applications may be able to wipe your entire application
information store.</string>

android:permissionGroup=" android.permission-group.STORAGE"

SELECT EMPLOYEEKEY,FIRSTNAME,LASTNAME, MIDDLENAME,TITLE,HIREDATE, BIRTHDATE,EMAILADDRESS,PHONE,GENDER FROM DBO.DIMEMPLOYEE WHERE DEPARTMENTNAME=@DEPARTMENTNAME AND GENDER=@GENDER

public interface IBakery
    {
        string Bake();
        double GetPrice();
    }
    public class Cake: IBakery
    {
        public string Bake() { return "Cake baked"; }
        public double GetPrice() { return 2000; }
    }
    public class Bread: IBakery
    {
        public string Bake() { return "Bread baked"; }
        public double GetPrice() { return 100; }
    }

 public abstract class Decorator : IBakery
    {
        private readonly IBakery _bakery;
        protected string bake = "N/A";
        protected double price = -1;

        protected Decorator(IBakery bakery) { _bakery= bakery; }
        public virtual string Bake() { return _bakery.Bake() + "/" + bake; }
        public double GetPrice() { return _bakery.GetPrice() + price; }
    }
    public class Type1 : Decorator
    {
        public Type1(IBakery bakery) : base(bakery) { bake= "Type 1"; price = 1; }
    }
    public class Type2 : Decorator
    {
        private const string bakeType = "special baked";
        public Type2(IBakery bakery) : base(bakery) { name = "Type 2"; price = 2; }
        public override string Bake() { return base.Bake() + bakeType ; }
    }

 Cake cc1 = new Cake();
 Console.WriteLine(cc1.Bake() + " ," + cc1.GetPrice());

 Type1 cd1 = new Type1 (cc1);
 Console.WriteLine(cd1.Bake() + " ," + cd1.GetPrice());

 Type2 cd2 = new Type2(cc1);
 Console.WriteLine(cd2.Bake() + " ," + cd2.GetPrice());

• نمونه مبتنی بر تقاضا: نرخ ساعتی بدون التزام طولانی مدت
  

• نمونه رزرو شده: خرید قراردادی هر نمونه با هزینه به مراتب پایین‌تر به ازای هر ساعت بعد از رزرو اولیه

• نمونه نقطه­‌ای: این متد برای قیمت گذاری بر روی ظرفیت استفاده نشده EC2 بر مبنای قیمت نقطه فعلی است. این قابلیت، قیمت­‌های بسیار پایین را به همراه خواهد داشت اما در زمان­‌های مختلف فرق می­کند یا در زمانی که ظرفیت مازادی نباشد، در دسترس نخواهد بود. 

using System.Diagnostics;

using System.IO;

using iTextSharp.text;

using iTextSharp.text.html.simpleparser;

using iTextSharp.text.pdf;



namespace HeadersAndFooters

{

    class Program

    {

        static void Main(string[] args)

        {

            using (var pdfDoc = new Document(PageSize.A4))

            {

                PdfWriter.GetInstance(pdfDoc, new FileStream("Test.pdf", FileMode.Create));

                pdfDoc.Open();



                var html = @"<span style='color:blue'><b>Testing</b></span>

                             <i>iTextSharp's</i> <u>HTML to PDF capabilities</u>";

                var parsedHtmlElements = HTMLWorker.ParseToList(new StringReader(html), null);



                foreach (var htmlElement in parsedHtmlElements)

                {

                    pdfDoc.Add(htmlElement);

                }

            }



            //open the final file with adobe reader for instance.

            Process.Start("Test.pdf");

        }

    }

}

using System.Diagnostics;

using System.IO;

using iTextSharp.text;

using iTextSharp.text.html.simpleparser;

using iTextSharp.text.pdf;

using iTextSharp.text.html;



namespace HeadersAndFooters

{

    class Program

    {

        static void Main(string[] args)

        {

            using (var pdfDoc = new Document(PageSize.A4))

            {

                PdfWriter.GetInstance(pdfDoc, new FileStream("Test.pdf", FileMode.Create));

                pdfDoc.Open();                



                //روش صحیح تعریف فونت

                FontFactory.Register("c:\\windows\\fonts\\tahoma.ttf");



                StyleSheet styles = new StyleSheet();

                styles.LoadTagStyle(HtmlTags.BODY, HtmlTags.FONTFAMILY, "tahoma");

                styles.LoadTagStyle(HtmlTags.BODY, HtmlTags.ENCODING, "Identity-H");                



                var html = @"<span style='color:blue'><b>آزمایش</b></span>

                                کتابخانه <i>iTextSharp</i> <u>جهت بررسی فارسی نویسی</u>";

                var parsedHtmlElements = HTMLWorker.ParseToList(new StringReader(html), styles);



                PdfPCell pdfCell = new PdfPCell { Border = 0 };

                pdfCell.RunDirection = PdfWriter.RUN_DIRECTION_RTL;



                foreach (var htmlElement in parsedHtmlElements)

                {

                    pdfCell.AddElement(htmlElement);

                }



                var table1 = new PdfPTable(1);

                table1.AddCell(pdfCell);

                pdfDoc.Add(table1);

            }



            //open the final file with adobe reader for instance.

            Process.Start("Test.pdf");

        }

    }

}

foreach (var htmlElement in parsedHtmlElements)

                {

                    if (htmlElement is PdfPTable)

                    {

                        var table = (PdfPTable)htmlElement;

                        table.RunDirection = PdfWriter.RUN_DIRECTION_RTL;

                        foreach (var row in table.Rows)

                        {

                            foreach (var cell in row.GetCells())

                            {

                                cell.RunDirection = PdfWriter.RUN_DIRECTION_RTL;                               

                            }

                        }

                    }



                    pdfCell.AddElement(htmlElement);

                }