الأنواع والملفات الجزئية

نظرة عامة على الأنواع الجزئية

أجزاء partial class

using System;

namespace Demo
{
  // Part 1: data
  public partial class Person
  {
    public string Name { get; private set; }
    public Person(string name) { Name = name; }
  }

  // Part 2: behavior
  public partial class Person
  {
    public string Greet() { return "Hi " + Name; }
  }
}

public class Program
{
  public static void Main(string[] args)
  {
    Demo.Person p = new Demo.Person("Ada");
    Console.WriteLine(p.Greet());
  }
}

الأساليب الجزئية

using System;

namespace Demo
{
  public partial class Processor
  {
    // Partial method: implicitly private, must return void in C# 6
    partial void OnProcessed(string item);

    public void Run(string item)
    {
      // do work...
      OnProcessed(item); // call hook (removed by compiler if not implemented)
    }
  }

  public partial class Processor
  {
    // Implementation lives in another part (often another file)
    partial void OnProcessed(string item)
    {
      Console.WriteLine("Processed: " + item);
    }
  }
}

public class Program
{
  public static void Main(string[] args)
  {
    Demo.Processor p = new Demo.Processor();
    p.Run("report");
  }
}

متى تستخدمون partial

partial struct

using System;

namespace Demo
{
  public partial struct Pair
  {
    public int A;
  }

  public partial struct Pair
  {
    public int B;
    public int Sum() { return A + B; }
  }
}

public class Program
{
  public static void Main(string[] args)
  {
    Demo.Pair p = new Demo.Pair();
    p.A = 2; p.B = 3;
    Console.WriteLine("Sum = " + p.Sum());
  }
}

قواعد partial ونصائح

الغرض من partial class

مراجعة