Timer add To Thread

Question

Hi good afternoon ,

i created one Form1 inside Form1 create one button1 when i click button new Form2 will open

and it will terminate after 3 minutes i am using timer control and set time working good

i took one label in Form2 and add Decrese Time 02:59 Min and seconds format ,what ever i wrote code working good,

but I want to time interval put threads process how we add to thread this code

if any body knows please replay me

Thanks in Advance.

//Form1 Button Code

private void button1_Click(object sender, EventArgs e)

{

Form2 fr = new Form2();

fr.ShowDialog();

}

//Form2 Code

private void Form4_Load(object sender, EventArgs e)

{

timer1.Interval = 1000;

timer1.Tick += new EventHandler(timer1_Tick);

timer1.Enabled = true;

timer1.Start();

}

void timer1_Tick(object sender, EventArgs e)

{

seconds--;

label1.Text = ((seconds / 60).ToString().Length == 2 ? (seconds / 60).ToString() : "0" + (seconds / 60).ToString()) + ":" + ((seconds % 60).ToString().Length == 2 ? (seconds % 60).ToString() : "0" + (seconds % 60).ToString());

if (seconds == 0)

{

this.close();

}

}