C# - How To Attach An Event Handler To Control Created At Runtime

I have a question connected with controls and event handling. Lets say I want to create a LinkButton.

protected void loadLinkButton()
{
ContentPlaceHolder content = (ContentPlaceHolder)this.Master.FindControl("MainContent");
LinkButton lnk = new LinkButton();
lnk.ID = "lnikBtn";
lnk.Text = "LinkButton";
lnk.Click += new System.EventHandler(lnk_Click);
content.Controls.Add(lnk);
}

Here is the event handler:

protected void lnk_Click(object sender, EventArgs e)
{
Label1.Text = "ok!";
}

If I run the loadLinkButton function inside Page_Load everything is ok. But when I try to run the loadLinkButton by clicking simple button, link button is created but event is not handled.

protected void Button1_Click(object sender, EventArgs e)
{
loadLinkButton();
}

I there any way to solve it? Or loadLinkButton must always regenerated on Page_Load, Page_init etc.