The IDisposable Interface : IDisposable : Class Interface C# Source Code


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The IDisposable Interface








    
 
using System;
public class MyClass : IDisposable
{
    private string name;
    public MyClass(string name) { this.name = name; }
    override public string ToString() { return name; }
   
    ~MyClass() 
    { 
        Dispose();
        Console.WriteLine("~MyClass(): " +name); 
    }
   
    public void Dispose()
    {
        Console.WriteLine("Dispose(): " +name);
        GC.SuppressFinalize(this);
    }
}


public class DisposableApp
{
    public static void Main(string[] args)
    {
        Console.WriteLine("start of Main, heap used: {0}", GC.GetTotalMemory(true));
        DoSomething();
        Console.WriteLine("end of Main, heap used: {0}", GC.GetTotalMemory(true));
    }
   
    public static void DoSomething()
    {
        MyClass[] ta = new MyClass[3];
   
        for (int i = 0; i < 3; i++)
        {
            ta[i] = new MyClass(String.Format("object #" +i));
            Console.WriteLine("Allocated {0} objects, heap used: {1}", i+1, GC.GetTotalMemory(true));
        }
   
        for (int i = 0; i < 3; i++)
        {
            ta[i].Dispose();
            ta[i] = null;
            GC.Collect();
            GC.WaitForPendingFinalizers();
            Console.WriteLine("Disposed {0} objects, heap used: {1}",i+1, GC.GetTotalMemory(true));
        }
    }
}

 
    
   
  
   







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