如何将sender参数传递给system.timers.timer

本文关键字：system timers timer 参数传递 sender | 更新日期: 2023-09-27 17:59:12

如何将sender参数传递给.NET中的system.timers.timer？

timer1[timer] = new System.Timers.Timer(interval);
timer1[timer].AutoReset = true;
timer1[timer].Elapsed += new ElapsedEventHandler(datatransferEvent);
timer1[timer].Start();
GC.KeepAlive(timer1[timer]);

private void timer_Elapsed(object sender, ElapsedEventArgs e)
{
    try
    {
        serverreconnected.Stop();
        reconnect(_opcServer);
    }
    finally
    {
        serverreconnected.Start();
    }
}

示例：

System.Threading.Timer timer1;
timer1= new System.Threading.Timer(databaseTrensfer, row, dueTime, interval);
public void databaseTrensfer(object row)
{
    DataRow rowE = (DataRow)row;
}

函数databaseTrensfer() 参数的行传递

我想将sender参数传递给事件。

提前谢谢。

如何将sender参数传递给system.timers.timer

我喜欢zabulus的方法，但也有其他选择。创建自己的Timer类，该类继承自System.Timers.Timer，它可以容纳您想要的任何内容。我选择做基本的对象标记属性，这样它就可以在其他项目中重复使用。

public class MyTimer : System.Timers.Timer
{
    public MyTimer(double interval)
        : base(interval)
    {
    }
    public object Tag { get; set; }
}
MyTimer timer;
void test(object sender)
{
    timer = new MyTimer(1);
    timer.Tag = sender;
    timer.Elapsed += new System.Timers.ElapsedEventHandler(timer_Elapsed);
}
void timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
    MyTimer timer = (MyTimer)sender;
    object tag = timer.Tag;
    // do whatever you want with tag
}

然后调用test(with whatever value you want to pass)。

创建包含行的聚合类。

class RowHolderEventArgs : EventArgs
{
    public DataRow row;
    public RowHolderEventArgs(DataRow row)
    {
        this.row = row;
    }
};
public delegate void RowHolderEvent(object sender, RowHolderEventArgs e);
class RowHolder
{
    public event RowHolderEvent Elapsed;
    DataRow row;
    public RowHolder(DataRow row, Timer timer)
    {
        this.row = row;
        timer.Elapsed += new ElapsedEventHandler(timer_Elapsed);
    }
    void timer_Elapsed(object sender, ElapsedEventArgs e)
    {
        if (this.Elapsed != null)
        {
            Elapsed(sender, new RowHolderEventArgs(row));
        }
    }
}

使用

timer1[timer] = new System.Timers.Timer(interval);
rowHolder[timer] = new RowHolder(timer1[timer],row[timer]);
rowHolder.Elapsed+=new RowHolderEvent(databaseTrensfer)
public void databaseTrensfer(object sender, HolderEventArgs e)
{
 DataRow rowE = (DataRow)e.row;
}

之类的东西怎么样

static Timer timer;
static void Main(string[] args)
{
    var row = default(DataRow); // Some row
    timer = new Timer(30000);
    timer.Elapsed += (_, __) => databaseTrensfer(row);
}
static void databaseTrensfer(DataRow row)
{
    // Do something with 'row'
}
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