public interface ICreationTracking
{
    DateTime CreatedDateTime { get; set; }
}

public interface IModificationTracking
{
    DateTime? ModifiedDateTime { get; set; }
}

public interface IHasRowIntegrity
{
    string Hash { get; set; }
}

public interface IHasRowVersion
{
    byte[] Version { get; set; }
}

public abstract class AggregateRoot<TKey> : Entity<TKey>, IAggregateRoot
    where TKey : IEquatable<TKey>
{
    private readonly List<IDomainEvent> _events = new List<IDomainEvent>();
    public IReadOnlyCollection<IDomainEvent> Events => _events.AsReadOnly();

    protected virtual void AddDomainEvent(IDomainEvent newEvent)
    {
        _events.Add(newEvent);
    }

    public virtual void ClearEvents()
    {
        _events.Clear();
    }
}

public static class EventBusExtensions
{
    public static Task TriggerAsync(this IEventBus bus, IEnumerable<IDomainEvent> events)
    {
        var tasks = events.Select(async domainEvent => await bus.TriggerAsync(domainEvent));
        return Task.WhenAll(tasks);
    }

    public static async Task PublishAsync(this IEventBus bus, IAggregateRoot aggregateRoot)
    {
        await bus.TriggerAsync(aggregateRoot.Events);
        aggregateRoot.ClearEvents();
    }
}

public interface IKeyValueService : IApplicationService
{
    Task SetValueAsync(string key, string value);
    Task<Maybe<string>> LoadValueAsync(string key);
    Task<bool> IsTamperedAsync(string key);
}

public class KeyValue : Entity, IModificationTracking, ICreationTracking, IHasRowIntegrity
{
    public string Key { get; set; }
    [Encrypted] public string Value { get; set; }
    public string Hash { get; set; }
    public DateTime CreatedDateTime { get; set; }
    public DateTime? ModifiedDateTime { get; set; }
}

    public class ExceptionOptions
    {
        public List<ExceptionMapItem> Mappings { get; } = new List<ExceptionMapItem>();

        [Required] public string DbException { get; set; }
        [Required] public string DbConcurrencyException { get; set; }
        [Required] public string InternalServerIssue { get; set; }

        public bool TryFindMapping(DbException dbException, out ExceptionMapItem mapping)
        {
            mapping = null;

            var words = new HashSet<string>(Regex.Split(dbException.ToStringFormat(), @"\W"));

            var mappingItem = Mappings.FirstOrDefault(a => a.Keywords.IsProperSubsetOf(words));
            if (mappingItem == null)
            {
                return false;
            }

            mapping = mappingItem;

            return true;
        }
    }

تغییرات کتابخانه DNTFrameworkCore.EFCore

public abstract class TrackableEntity<TKey> : Entity<TKey>, ITrackable where TKey : IEquatable<TKey>
{
    [NotMapped] public TrackingState TrackingState { get; set; }
    [NotMapped] public ICollection<string> ModifiedProperties { get; set; }
}

public static class ConfigurationBuilderExtensions
{
    public static IConfigurationBuilder AddEFCore(this IConfigurationBuilder builder,
        IServiceProvider provider)
    {
        return builder.Add(new EFConfigurationSource(provider));
    }
}

protected DbContextCore(DbContextOptions options, IEnumerable<IHook> hooks) : base(options)
{
    _hooks = hooks ?? throw new ArgumentNullException(nameof(hooks));
}

public void IgnoreHook(string hookName)
{
    _ignoredHookList.Add(hookName);
}

internal sealed class RowIntegrityHook : PostActionHook<IHasRowIntegrity>
{
    public override string Name => HookNames.RowIntegrity;
    public override int Order => int.MaxValue;
    public override EntityState HookState => EntityState.Unchanged;

    protected override void Hook(IHasRowIntegrity entity, HookEntityMetadata metadata, IUnitOfWork uow)
    {
        metadata.Entry.Property(EFCore.Hash).CurrentValue = uow.EntityHash(entity);
    }
}

//DbContextCore : IUnitOfWork

public string EntityHash<TEntity>(TEntity entity) where TEntity : class
{
    var row = Entry(entity).ToDictionary(p => p.Metadata.Name != EFCore.Hash &&
                                              !p.Metadata.ValueGenerated.HasFlag(ValueGenerated.OnUpdate) &&
                                              !p.Metadata.IsShadowProperty());
    return EntityHash<TEntity>(row);
}

protected virtual string EntityHash<TEntity>(Dictionary<string, object> row) where TEntity : class
{
    var json = JsonConvert.SerializeObject(row, Formatting.Indented);
    using (var hashAlgorithm = SHA256.Create())
    {
        var byteValue = Encoding.UTF8.GetBytes(json);
        var byteHash = hashAlgorithm.ComputeHash(byteValue);
        return Convert.ToBase64String(byteHash);
    }
}

IsTamperedAsync
HasTamperedEntryAsync
TamperedEntryListAsync

protected override void OnModelCreating(ModelBuilder modelBuilder)
{  
    modelBuilder.NormalizeDateTime();
    modelBuilder.NormalizeDecimalPrecision(precision: 20, scale: 6);
    
    base.OnModelCreating(modelBuilder);
}

MigrateDbContext<TContext>(this IHost host)

services.AddEFCore<ProjectDbContext>()
    .WithTrackingHook<long>()
    .WithDeletedEntityHook()
    .WithRowIntegrityHook()
    .WithNumberingHook(options =>
    {
        options.NumberedEntityMap[typeof(Task)] = new NumberedEntityOption
        {
            Prefix = "Task",
            FieldNames = new[] {nameof(Task.BranchId)}
        };
    });

تغییرات کتابخانه DNTFrameworkCore.Web.Tenancy

services.AddTenancy()
    .WithTenantSession()
    .WithStore<InMemoryTenantStore>()
    .WithResolutionStrategy<HostResolutionStrategy>();

app.UseTenancy();

PM> Install-Package DNTFrameworkCore
PM> Install-Package DNTFrameworkCore.EFCore
PM> Install-Package DNTFrameworkCore.EFCore.SqlServer
PM> Install-Package DNTFrameworkCore.Web
PM> Install-Package DNTFrameworkCore.FluentValidation
PM> Install-Package DNTFrameworkCore.Web.Tenancy
PM> Install-Package DNTFrameworkCore.Licensing

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
 }
}

Get-Process | Where-Object { $_.Name -eq 'Dropbox' }

PS /Users/sirwanafifi/Desktop> $block = {
>> $newVar = 10
>> Write-Host $newVar
>> }

PS /Users/sirwanafifi/Desktop> & $block

PS /Users/sirwanafifi/Desktop> & "Get-Process"

PS /Users/sirwanafifi/Desktop> & "1 + 1"
or
PS /Users/sirwanafifi/Desktop> & "Get-Process -Name Slack"

Function Add-Something {
    Write-Host "$_ World"
}

"Hello" | Add-Something

Function Add-Something {
    [CmdletBinding()]
    Param(
        [Parameter(ValueFromPipeline = $true)]
        [string]$Name
    )

    Write-Host "$Name World"
}

"Hello" | Add-Something

$API_KEY = "...."

Function Read-WeatherData {
    [CmdletBinding()]
    Param(
        [Parameter(ValueFromPipeline = $true)]
        [string]$CityName
    )

    $Url = "https://api.openweathermap.org/data/2.5/forecast?q=$CityName&cnt=40&appid=$API_KEY&units=metric"
    Try {
        Write-Verbose "Reading weather data for $CityName"
        $Response = Invoke-RestMethod -Uri $Url
        $Response.list | ForEach-Object {
            Write-Verbose "Processing $($_.dt_txt)"
            [PSCustomObject]@{
                City               = $Response.city.name
                DateTime           = [DateTime]::Parse($_.dt_txt)
                Temperature        = $_.main.temp
                Humidity           = $_.main.humidity
                Pressure           = $_.main.pressure
                WindSpeed          = $_.wind.speed
                WindDirection      = $_.wind.deg
                Cloudiness         = $_.clouds.all
                Weather            = $_.weather.main
                WeatherDescription = $_.weather.description
            }
        } | Where-Object { $_.DateTime.Date -eq (Get-Date).Date }
        Write-Verbose "Done processing $CityName"
    }
    Catch {
        Write-Error $_.Exception.Message
    }
}

Read-WeatherData -CityName "London" -Verbose

begin
process
end
dynamicparam

function Show-Pipeline {
    begin { 
        Write-Host "Pipeline start" 
    }
    process { 
        Write-Host  "Pipeline process $_" 
    }
    end { 
        Write-Host  "Pipeline end $_" 
    }
}

PS /> 1..2 | Show-Pipeline                                   
Pipeline start 
Pipeline process 1
Pipeline process 2
Pipeline end 2

Function Ping-Website {
    [CmdletBinding()]
    Param(
        # As before
    )
    process {
        # As before
    }
}

PS /> "www.google.com", "www.yahoo.com" | Ping-Website

Website        Result  Number Of Attempts
-------        ------  ------------------
www.google.com Success                  3
www.yahoo.com  Success                  3

PS /> Read-Csv ./users.csv -Columns name

using namespace System.Management.Automation
Function Read-Csv {
    Param (
        [Parameter(Mandatory = $true, Position = 0)]
        [string]$Path
    )
    DynamicParam {
        $firstLine = Get-Content $Path | Select-Object -First 1
        [String[]]$headers = $firstLine -split ', '
        $parameters = [RuntimeDefinedParameterDictionary]::new()
        $parameter = [RuntimeDefinedParameter]::new(
            'Columns', [String[]], [Attribute[]]@(
                [Parameter]@{ Mandatory = $false; Position = 1 }
                [ValidateSet]::new($headers)
            )
        )
        $parameters.Add($parameter.Name, $parameter) 
        Return $parameters
    }
    Begin {
        $csvContent = Import-Csv $Path
        If ($PSBoundParameters.ContainsKey('Columns')) {
            $columns = $PSBoundParameters['Columns']
            $csvContent | Select-Object -Property $columns
        }
        Else {
            $csvContent
        }
    }
}

byte[] data = new byte[maxSize];
RNGCryptoServiceProvider crypto = new RNGCryptoServiceProvider();
crypto.GetNonZeroBytes(data);

public class News
    {
        public int Id;
        public string Body;
        public DateTime NewsDate;
    }

using System.Runtime.Serialization;
using System.Xml;
using System;
using System.IO;
namespace ConsoleApplication1
{  
    [DataContract]
    public class News
    {
        [DataMember] public int Id;
        [DataMember] public string Body;
        [DataMember] public DateTime NewsDate;
    }
}

var news = new News
                           {
                               Id = 1,
                               Body = "NewsBody",
                               NewsDate = new DateTime(2012, 10, 4)
                           };
 var ds = new DataContractSerializer(typeof (News));
 using (Stream s=File.Create("News.Xml"))
 {
        ds.WriteObject(s, news);//سریالی‌کردن
 }

<News xmlns="http://schemas.datacontract.org/2004/07/ConsoleApplication7" xmlns:i="http://www.w3.org/2001/XMLSchema-instance"><Body>NewsBody</Body><Id>1</Id><NewsDate>2012-10-04T00:00:00</NewsDate></News>

News deserializednews;
using (Stream s = File.OpenRead("News.Xml"))
{
       deserializednews = (News)ds.ReadObject(s);//Deserializing
}
Console.WriteLine(deserializednews.Body);

XmlWriterSettings settings = new XmlWriterSettings {Indent = true}; 
using (XmlWriter writer = XmlWriter.Create("News.Xml", settings))
{
          ds.WriteObject(writer, news);
}
System.Diagnostics.Process.Start("News.Xml");

<?xml version="1.0" encoding="utf-8"?>
<News xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.datacontract.org/2004/07/ConsoleApplication7">
  <Body>NewsBody</Body>
  <Id>1</Id>
  <NewsDate>2012-10-04T00:00:00</NewsDate>
</News>