C#中的connection.Dispose()是什么意思? [英] What is meant by connection.Dispose() in C#?

问题描述

C#中的 connection.Dispose()是什么意思?

What is meant by connection.Dispose() in C#?

推荐答案

一个类实现

A class implements IDisposable interface contains a method called Dispose(), where you can release resources or do something else.

此外， using 语句可以帮助自动调用 Dispose()方法.

Also, a using statement can help to call Dispose() method automatically.

using (SqlConnection connection  = new SqlConnection(connStr))
{
   //do something
}// it will automatically Dispose() here

调用 myClass.Dispose()时会发生什么情况取决于您在 Dispose 方法中编写的内容.例如:

What happens when you call myClass.Dispose() depends on what you wrote in the Dispose method. For example:

public class MyClass : IDisposable
{
   //since MyClass implements IDisposable, it must contain a Dispose() method otherwise will compile error
   public void Dispose()
   {
      // do something
   }
}

因此，如果您想知道调用 connection.Dispose()时发生了什么，则必须查看连接类的 Dispose()方法(也许是SqlConnection?).如果它是.NET内置库(这意味着您无法轻松获取源代码)，则可以使用称为

so if you want to know what happened when you call connection.Dispose(), you must take a look at the Dispose() method of the class of connection(maybe it's a SqlConnection?). If it's a .NET built-in library(which means you can't get the source code easily), you can use a tool to help called Reflector

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