动态创建的button 没有执行响应事件
private void FillPreNext(int total,int list,int perpage){
Button btn=new Button();
btn.Text="2";
btn.CssClass="BTNHREF";
btn.ID="btn111";
btn.Click += new System.EventHandler(this.HREF_Click);
TDHREF.Controls.Add(btn);
}
private void HREF_Click(object sender, System.EventArgs e)
{
Response.Write("a");
}