two or more timer with different intervals with C#

I have to a d.b entry in which the intervals are given,

Suppose 1 timer tm_5 will check the entries after every 5 mins开发者_StackOverflow & the timer tm_10 will check

the entries after every 10 mins,

The problem is that it checks only the entries for tm_5 not for the tm_10.

I am using C#.net 2005 & MS sql server 2005.

Try this (add label1 and label2 to form named TimerTester).

public partial class TimerTester : Form
{
    public TimerTester()
    {
        InitializeComponent();
    }
    Timer _t1;
    Timer _t2;
    int _it1 = 0, _it2 = 0;
    private void Form1_Load(object sender, EventArgs e)
    {
        _t1 = new Timer() { Interval = 1000 };            
        _t1.Tick += new EventHandler(_t1_Tick);
        _t2 = new Timer() { Interval = 2000 };
        _t2.Tick += new EventHandler(_t2_Tick);
        _t1.Start(); _t2.Start();
    }
    void _t1_Tick(object sender, EventArgs e)
    {
        label1.Text = "t1: " + (_it1++).ToString();
    }
    void _t2_Tick(object sender, EventArgs e)
    {
        label2.Text = "t2: " + (_it2++).ToString();
    }        
}

Also note that you should use Forms.Timer and not Threads.Timer (or use InvokeRequired and read & understand what it implicates).

You should change the text of the label in the UI thread so this code will work. See Control.Invoke and Control.InvokeRequired for help.