我的班我的应用程序中的一个使用System.Timers.Timer的类。 我知道Timer类有Dispose方法从实现IDisposable接口父组件类继承。 下面是在我的应用程序生命周期创造了许多倍的类的实例;他们每个人都有类的生命周期中不断生成的事件经过的Timer类的一个实例。 我应该落实在使用Timer类处置计时器对象的类IDisposable接口? (我见过code,不这样做的话)。 恐怕一些非托管资源不会被释放,如果我使用的类下面是这样的:
SomeClass的SomeClass的=新SomeClass的();
someClass.DoSomething();
SomeClass的= NULL;
类:
使用System.Timers;
公共类SomeClass的
{
私人定时器m_timer;
公共SomeClass的()
{
m_timer =新的Timer();
m_timer.Interval = 1000;
m_timer.Elapsed + =新ElapsedEventHandler(m_timer_Elapsed);
m_timer.AutoReset = FALSE;
m_timer.Start();
}
公共无效DoSomething的()
{
}
私人无效m_timer_Elapsed(对象发件人,ElapsedEventArgs E)
{
尝试
{
//做一些任务
}
赶上(例外前)
{
//忽略
}
最后
{
如果(m_timer!= NULL)
{
//重新启动定时器
m_timer.Enabled = TRUE;
}
}
}
}
解决方案
一般来说,你应该总是处置可支配的资源。我当然会期待的情况下,你上面的概述。如果您在实现那么你可以使用这个类在using语句,意味着资源的计时器,当你的类配置将被明确释放类实现IDisposable。
I am using System.Timers.Timer class in one of the classes in my application. I know that Timer class has Dispose method inherited from the parent Component class that implements IDisposable interface. Instances of the class below are created many times during my application lifecycle; each of them has an instance of Timer class that generates Elapsed events continuously during the class's lifecycle. Should I implement IDisposable interface in the class that uses Timer class to dispose the timer object? (I have seen code that doesn't do this at all). I am afraid that some unmanaged resources will not be freed if I use the class below like this:
SomeClass someClass = new SomeClass();
someClass.DoSomething();
someClass = null;
The class:
using System.Timers;
public class SomeClass
{
private Timer m_timer;
public SomeClass()
{
m_timer = new Timer();
m_timer.Interval = 1000;
m_timer.Elapsed += new ElapsedEventHandler(m_timer_Elapsed);
m_timer.AutoReset = false;
m_timer.Start();
}
public void DoSomething()
{
}
private void m_timer_Elapsed(object sender, ElapsedEventArgs e)
{
try
{
//Do some task
}
catch (Exception ex)
{
//Ignore
}
finally
{
if (m_timer != null)
{
//Restart the timer
m_timer.Enabled = true;
}
}
}
}
解决方案
Generally speaking you should always dispose of disposable resources. I certainly would be looking to in the case you outline above. If you implement IDisposable on the class that implements the timer you can then use the class in a using statement, meaning resources will be explicitly released when your class is disposed.