正确实现 IDisposable [英] Implementing IDisposable correctly

问题描述

在我的课程中，我实现了 IDisposable 如下:

In my classes I implement IDisposable as follows:

public class User : IDisposable
{
    public int id { get; protected set; }
    public string name { get; protected set; }
    public string pass { get; protected set; }

    public User(int UserID)
    {
        id = UserID;
    }
    public User(string Username, string Password)
    {
        name = Username;
        pass = Password;
    }

    // Other functions go here...

    public void Dispose()
    {
        // Clear all property values that maybe have been set
        // when the class was instantiated
        id = 0;
        name = String.Empty;
        pass = String.Empty;
    }
}

在 VS2012 中，我的代码分析说要正确实现 IDisposable，但我不确定我在这里做错了什么.
具体内容如下:

In VS2012, my Code Analysis says to implement IDisposable correctly, but I'm not sure what I've done wrong here.
The exact text is as follows:

CA1063 正确实现 IDisposable 在用户"上提供可覆盖的 Dispose(bool) 实现或将类型标记为密封.调用 Dispose(false) 应该只清理本机资源.调用 Dispose(true) 应该清理托管资源和本机资源.stman User.cs 10

CA1063 Implement IDisposable correctly Provide an overridable implementation of Dispose(bool) on 'User' or mark the type as sealed. A call to Dispose(false) should only clean up native resources. A call to Dispose(true) should clean up both managed and native resources. stman User.cs 10

参考:CA1063:正确实现 IDisposable

我已经通读了这个页面，但恐怕我不太明白这里需要做什么.

I've read through this page, but I'm afraid I don't really understand what needs to be done here.

如果有人能更通俗地解释问题是什么和/或应该如何实现 IDisposable，那真的很有帮助！

If anyone can explain in more layman's terms what the problem is and/or how IDisposable should be implemented, that will really help!

推荐答案

这将是正确的实现，尽管我在您发布的代码中没有看到您需要处理的任何内容.您只需要在以下情况下实现 IDisposable:

This would be the correct implementation, although I don't see anything you need to dispose in the code you posted. You only need to implement IDisposable when:

1. 您有非托管资源
2. 你坚持引用本身是一次性的东西.

您发布的代码中没有任何内容需要处理.

Nothing in the code you posted needs to be disposed.

public class User : IDisposable
{
    public int id { get; protected set; }
    public string name { get; protected set; }
    public string pass { get; protected set; }

    public User(int userID)
    {
        id = userID;
    }
    public User(string Username, string Password)
    {
        name = Username;
        pass = Password;
    }

    // Other functions go here...

    public void Dispose()
    {
        Dispose(true);
        GC.SuppressFinalize(this);
    }

    protected virtual void Dispose(bool disposing)
    {
        if (disposing) 
        {
            // free managed resources
        }
        // free native resources if there are any.
    }
}

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