关于Timer的问题

[thycloud]

关于Timer的问题

str 是5秒变一次

System.Timers.Timer aTimer = new System.Timers.Timer(500);
switch(str)
{

case "aa":
aTimer.Elapsed += new ElapsedEventHandler(aaTimedEvent);
aTimer.Interval = 500;
aTimer.Enabled = true;

break;
case "bb":
aTimer.Elapsed += new ElapsedEventHandler(bbTimedEvent);
aTimer.Interval = 500;
aTimer.Enabled = true;
break;
}

private void aaTimedEvent(object source, ElapsedEventArgs e)
{
System.Windows.Forms.Control.CheckForIllegalCrossThreadCalls = false;
label3.Visible = !label3.Visible;
}

private void bbTimedEvent(object source, ElapsedEventArgs e)
{

System.Windows.Forms.Control.CheckForIllegalCrossThreadCalls = false;
label4.Visible = !label4.Visible;
}

当变到bb时 aa的事件还在执行 怎么把他停掉？

[深海之蓝]

aTimer.Enabled = false;

[skison]

aTimer.Elapsed -= new ElapsedEventHandler(aaTimedEvent);

[relive_qiankai]

.start()
.close()

[relive_qiankai]

.start()
.close()

[relive_qiankai]

.start()
.close()

[thycloud]

aTimer.Enabled = false;
加在哪？ case "aa": 和 case "bb": 后面
我测试了不行

[thycloud]

aTimer.Elapsed -= new ElapsedEventHandler(aaTimedEvent);
也一样不可以

[whowhen21]

timer1.Start();//开始计时；
timer1.Stop();//停止计时

[baiyunyinv]

private void aaTimedEvent(object source, ElapsedEventArgs e) 
{ 
               if(aTimer.Elapsed !=null}
{
                aTimer.Elapsed -= new ElapsedEventHandler(bbTimedEvent); 
}
                System.Windows.Forms.Control.CheckForIllegalCrossThreadCalls = false; 
                label3.Visible = !label3.Visible; 
} 

private void bbTimedEvent(object source, ElapsedEventArgs e) 
{               
 if(aTimer.Elapsed !=null}
{
                aTimer.Elapsed -= new ElapsedEventHandler(aaTimedEvent); 
}            System.Windows.Forms.Control.CheckForIllegalCrossThreadCalls = false; 
            label4.Visible = !label4.Visible; 
} 

[homejiji]

case "aa":
aTimer.Elapsed += new ElapsedEventHandler(aaTimedEvent);
aTimer.Interval = 500;
aTimer.Enabled = true;

case "bb":
aTimer.Enabled = false;
aTimer.Elapsed -= new ElapsedEventHandler(aaTimedEvent);
aTimer.Elapsed += new ElapsedEventHandler(bbTimedEvent);
aTimer.Interval = 500;
aTimer.Enabled = true;
break;

[thycloud]

“System.Timers.Timer.Elapsed”只能出现在 += 或 -= 的左边

[thycloud]

175809646

[thycloud]

case "aa":
//aTimer1.Close();aTimer.Start();
//aTimer.Stop();
// aTimer.Start();

aTimer.Enabled = false;
aTimer.Elapsed -= new ElapsedEventHandler(aaTimedEvent);

aTimer.Elapsed += new ElapsedEventHandler(aaTimedEvent);
aTimer.Interval = 500;
aTimer.Enabled = true;
break;
case "bb":

//aTimer.Stop();
//aTimer.Start();
aTimer.Enabled = false;
aTimer.Elapsed -= new ElapsedEventHandler(aaTimedEvent);
aTimer.Elapsed += new ElapsedEventHandler(bbTimedEvent);
aTimer.Interval = 500;
aTimer.Enabled = true;
break;

依然不行 伤心

[birdlonger]

switch(str)
{

case "aa":
if (aTimer.Elapsed.GetInvocationList().Length >0 )
{
aTimer.Elapsed -= new ElapsedEventHandler(bbTimedEvent);
}
aTimer.Elapsed += new ElapsedEventHandler(aaTimedEvent);
aTimer.Interval = 500;
aTimer.Enabled = true;

break;
case "bb":
if (aTimer.Elapsed.GetInvocationList().Length >0 )
{
aTimer.Elapsed -= new ElapsedEventHandler(aaTimedEvent);
}
aTimer.Elapsed += new ElapsedEventHandler(bbTimedEvent);
aTimer.Interval = 500;
aTimer.Enabled = true;
break;
}

[justindreams]

System.Timers.Timer aTimer = new System.Timers.Timer(500); 
aTimer.Elapsed += new ElapsedEventHandler(aaTimedEvent); 
aTimer.Interval = 500; 
aTimer.Enabled = true; 

private void aaTimedEvent(object source, ElapsedEventArgs e) 
{
    switch(str)
    {
        case "aa": 
                System.Windows.Forms.Control.CheckForIllegalCrossThreadCalls = false; 
                label3.Visible = !label3.Visible; 
                break;
        case "bb":
            System.Windows.Forms.Control.CheckForIllegalCrossThreadCalls = false; 
            label4.Visible = !label4.Visible; 
            break;
    }
} 

[thycloud]

16楼 确实厉害 感谢大家 分全给16楼 大家不介意吧

[wenjie820]

看看16楼的