Data Controls :: How To Create Dynamic Buttons On Click Of Dynamic Button

im creating dynamic buttons on page load and on the click event of button1 handlere iam creating more buttons this is going fine but on click event of button 2 work is not done so how to maintain a chain of creation of button on click events

protected void Button2_Click(object sender, EventArgs e)//

{
ClientScript.RegisterClientScriptBlock(this.GetType(), ((Button)sender).ID, "<script>alert('Button_Click');</script>");
Response.Write(DateTime.Now.ToString() + ": " + ((Button)sender).ID + " was clicked");
}

protected void Button_Click(object sender, EventArgs e)//this button click will call all the items related to department

[code]....