C# Dispose: Resource Management Guide

In C#, Dispose is a method typically used to release the resources occupied by an object. This method is commonly implemented with the IDisposable interface, which requires the implementation of a Dispose method to release resources when the object is no longer needed. The Dispose method can be called manually when the object is no longer in use, or it can be automatically called using the using statement.

The Dispose method is typically used to release unmanaged resources such as file handles, database connections, network connections, etc. In the Dispose method, developers can manually release these resources to ensure they are released promptly when the object is no longer in use, avoiding resource leaks and memory leak issues.

Here is the sample code:

public class MyResource : IDisposable
{
    // 非托管资源
    private IntPtr handle;
    
    // 实现IDisposable接口中的Dispose方法
    public void Dispose()
    {
        Dispose(true);
        GC.SuppressFinalize(this);
    }

    protected virtual void Dispose(bool disposing)
    {
        if (disposing)
        {
            // 释放非托管资源
            CloseHandle(handle);
        }
    }

    // 使用using语句调用Dispose方法
    public void DoSomething()
    {
        using (var resource = new MyResource())
        {
            // 使用资源
        }
    }
}