C# IDisposable接口的使用
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Data.SqlClient;
using System.Data;
namespace DisposeDemo
{
class Program
{
static void Main(string[] args)
{
PersonWrapper pw = new PersonWrapper();
pw.Dispose();
Console.WriteLine(pw.p == null);
Console.Read();
}
}
public class PersonWrapper:IDisposable
{
public Person p = new Person() { Name = "abc" };
public void Dispose()
{
Dispose(true);
GC.SuppressFinalize(this);
}
private bool disposed = false;
protected virtual void Dispose(bool disposing)
{
// Check to see if Dispose has already been called.
if (!this.disposed)
{
// If disposing equals true, dispose all managed
// and unmanaged resources.
if (disposing)
{
p = null;
// Dispose managed resources (like other .NET components)
}
// Dispose UNMANAGED resources (like P/Invoke functions)
GC.Collect();
GC.WaitForPendingFinalizers();
}
disposed = true;
}
}
public class Person
{
public string Name { get; set; }
}
}