LinkButton

I am dynamically creating a link button and attaching a event to it. But its not invoking event. I am not clear. Could anybody help me please.
my code is -

protected void check()
{
d = test();

int r = d.Tables["House_hold"].Rows.Count;
for (int i = 0; i < r; i++)
{

LinkButton lnk = new LinkButton();

lnk.ID = "lnk";

lnk.Text = "LinkButton";



lnk.Text = d.Tables["House_hold"].Rows[6].ToString() + "<br /><br />";


lnk.Attributes.Add("runat", "server");
lnk.Click += new System.EventHandler(Lnkbut_Click);

Panel1.Controls.Add(lnk);



}

void Lnkbut_Click(object sender, EventArgs e)
{

Label1.Text = "hello";

Response.Write(e.ToString());
Response.Write("hello");
}






}