使用Timer EventHandler时遇到问题 [英] getting an issue while using Timer EventHandler

问题描述

我正在尝试使用sql查询将数据插入数据库中，同时在Form1_Load，Button等中执行该方法时一切正常，但是当我尝试在计时器事件处理程序中执行此方法时，计时器执行两次查询

我需要的是以下内容:-

1.为什么会这样
2.此问题的解决方案

谢谢，

问候，

Snake.您的计时器将一直触发直到停止为止.因此，请在事件的第一行停止计时器触发(它还具有是否会触发一次以上的属性，但可以肯定的是，在事件中我总是将其关闭).但是，由于您提供的信息不足，我正在猜测原因是什么.

尝试将您的方法移出计时器刻度事件

计时器MyTimer = 新 Timer();

MyTimer_Tick(对象发​​送者，EventArgs e)
{
MyTimer.Enabled =  false ;
DoMyAction();
}

无效 DoMyAction()
{
// 您在此处执行操作
MyTimer.Enabled =  true ;
} 

i was trying to insert data into database using sql query ,while executing the method in Form1_Load,Button,etc everything is going fine, but when i try to execute this method into the timer eventhandler, the timer execute the query 2 times

What do i need is the following:-

1.Why is this happening
2.A solution for this issue

Thanks,

Regards,

Snake.

解决方案

Well, I''m not sure if you want help, because if you did, you''d surely post some code ? Your timer will keep firing until you stop it. So, stop the timer firing as the first line of your event ( it also has a property as to if it will fire more than once, but I always turn them off in the event, to be sure ). But, I am guessing as to what the cause is, based on the lack of info you provided.

try moving your method out of the timer tick event

Timer MyTimer = new Timer();

MyTimer_Tick(object sender, EventArgs e)
{
MyTimer.Enabled = false;
DoMyAction();
}

void DoMyAction()
{
//do you actions here
MyTimer.Enabled = true;
}

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