C# multithreading visual-studio-2008 timer

从 C# 中的不同线程启动计时器

发布于 2024-11-02 07:18:38 字数 877 浏览 1 评论 0原文

您好，我遇到了一些与计时器相关的问题。希望有人可以提供帮助..

我有一个包含按钮的Windows窗体
，当我单击该按钮时，我启动一个参数化线程，

Thread thread1 = new Thread(new ParameterizedThreadStart( execute2));
thread1.Start(externalFileParams);

线程内的代码
在该线程的最后一行执行得很好，我启动一个计时器

。

public void execute2(Object ob)
{
    if (ob is ExternalFileParams)
    {
        if (boolean_variable== true)
          executeMyMethod();//this also executes very well if condition is true
        else
        {
            timer1.enabled = true;
            timer1.start();
            }
        }
    }
}

5 但计时器的滴答事件没有被触发

我正在 VS2008 3.5 框架上工作。我已从工具箱中拖动计时器并将其 Interval 设置为 300 还尝试设置 Enabled true/false 方法是 timer1_Tick(Object sender , EventArgs e) 但它没有被触发

有人可以建议我做错了什么吗？

原文

Hi i have stepped into some problem related to timer.
hope somebody can help..

I have a windows form containing a button
when i click on that button i start a parameterised thread

Thread thread1 = new Thread(new ParameterizedThreadStart( execute2));
thread1.Start(externalFileParams);

the code inside the thread executes very well
at the last line of this thread i start a timer

public void execute2(Object ob)
{
    if (ob is ExternalFileParams)
    {
        if (boolean_variable== true)
          executeMyMethod();//this also executes very well if condition is true
        else
        {
            timer1.enabled = true;
            timer1.start();
            }
        }
    }
}

5 but the tick event of the timer is not fired

I am working on VS2008 3.5 framework. I have dragged the timer from toolbox and set its Interval to 300 also tried to set Enabled true/false
method is timer1_Tick(Object sender , EventArgs e) but its not fired

can anybody suggest what I am doing wrong?

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草莓味的萝莉 2024-11-09 07:18:39

您可以尝试以这种方式启动计时器：

在表单构造函数中添加此方法：

System.Timers.Timer aTimer = new System.Timers.Timer();
 aTimer.Elapsed += new ElapsedEventHandler(OnTimedEvent);
 // Set the Interval to 1 second.
 aTimer.Interval = 1000;

将此方法添加到 Form1：

 private static void OnTimedEvent(object source, ElapsedEventArgs e)
 {
   //do something with the timer
 }

在按钮单击事件上添加此方法：

aTimer.Enabled = true;

此计时器已经是线程化的，因此无需启动新线程。

You could try to start the timer this way:

Add in form constructor this:

System.Timers.Timer aTimer = new System.Timers.Timer();
 aTimer.Elapsed += new ElapsedEventHandler(OnTimedEvent);
 // Set the Interval to 1 second.
 aTimer.Interval = 1000;

Add this method to Form1:

 private static void OnTimedEvent(object source, ElapsedEventArgs e)
 {
   //do something with the timer
 }

On button click event add this:

aTimer.Enabled = true;

This timer is already threaded so no need to start a new thread.

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写给空气的情书 2024-11-09 07:18:39

Matías Fidemraizer 所说的确实如此。但是，有一种解决方法......

当您的表单上有一个可调用的控件（例如状态栏）时，只需调用该控件即可！

C# 代码示例：

private void Form1_Load(object sender, EventArgs e)
{
    Thread sampleThread = new Thread(delegate()
    {
        // Invoke your control like this
        this.statusStrip1.Invoke(new MethodInvoker(delegate()
        {
            timer1.Start();
        }));
    });
    sampleThread.Start();
}

private void timer1_Tick(object sender, EventArgs e)
{
    MessageBox.Show("I just ticked!");
}

It is true what Matías Fidemraizer says. But, there is a work around...

When you have a control on your form that is invokable (eg. a statusbar), just invoke that one!

C# Code sample:

private void Form1_Load(object sender, EventArgs e)
{
    Thread sampleThread = new Thread(delegate()
    {
        // Invoke your control like this
        this.statusStrip1.Invoke(new MethodInvoker(delegate()
        {
            timer1.Start();
        }));
    });
    sampleThread.Start();
}

private void timer1_Tick(object sender, EventArgs e)
{
    MessageBox.Show("I just ticked!");
}

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