C＃呼叫类失败

Question

我有一个使用其他类（在seprated DLL）中的winform应用程序 它看起来像：

public Form1() 

    { 

     foo = new Foo(2500, this.refreshGrid); 
    } 
    private void refreshGrid(List<int> source) 
    { 
     dgvDrivers.AutoGenerateColumns = true; 
     dgvDrivers.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.AllCells; 

     dgvDrivers.SynchronizedInvoke(() => dgvDrivers.DataSource = source); 
     dgvDrivers.AutoResizeColumns(); 
    } 

和扩展方法：

public static void SynchronizedInvoke(this ISynchronizeInvoke sync, Action action) 
    { 
     // If the invoke is not required, then invoke here and get out. 
      if (!sync.InvokeRequired) 
      { 
       // Execute action. 
       action(); 

       // Get out. 
       return; 
      } 

      // Marshal to the required context. 
      sync.Invoke(action, new object[] { }); 
     } 

现在我有一个初始化新System.Threading.Timer在specfic时间运行一次类：

public CreateTimer(int dueTime) 
{ 
     new System.Threading.Timer(SchudleStatusChange, null, dueTime, System.Threading.Timeout.Infinite); 
    } 

回到用户界面 - 有按钮，每次点击调用CreateTimer（）10次 但定时器调用次数少于我的预期。 我想这是使用winforms和调用主线程的事情。

任何ideads？

Answer 1

你没有挂在你的计时器的引用上，所以垃圾收集器将它关闭并关闭它。

As long as you are using a Timer, you must keep a reference to it. As with any managed object, a Timer is subject to garbage collection when there are no references to it. The fact that a Timer is still active does not prevent it from being collected.