button1.Click = new EventHandler(Button_Click); Label label1 = new Label(); 字串6 label1.ID = "Label1"; label1.Text = "A full page postback occurred."; 字串4
up1.ContentTemplateContainer.Controls.Add(button1); up1.ContentTemplateContainer.Controls.Add(label1); Page.Form.Controls.Add(up1);
} 字串4
protected void Button_Click(object sender, EventArgs e)
{ 字串3