给button添加事件没反应？该怎么处理

  protected void Page_Load(object sender, EventArgs e)   {  sda = new SqlDataAdapter("select faci_id, faci_name from facilities where display='1'", conn);        sda.Fill(ds, "facilities");  for (int i = 0; i < ds.Tables["facilities"].Rows.Count; i++)        {            myButton = new Button();            myButton.Width = 85;            myButton.Text = ds.Tables["facilities"].Rows[i][1].ToString();            myButton.ID = ds.Tables["facilities"].Rows[i][0].ToString();            myButton.Click += new EventHandler(myButton_Click);            this.Panel1.Controls.Add(myButton);        }   } protected void myButton_Click(object sender,EventArgs e)    {        Button myBtn = (Button)sender;        selectButton(myBtn.Text.ToString().Trim());         Label1.Text = "您点击了" +myBtn.Text.ToString()+ "这个按钮";    }    private void selectButton(string myButtonText)    {        ds.Tables.Clear();        string sql = "SELECT * FROM faci_orders INNER JOIN facilities ON faci_orders.faci_id = "+        "facilities.faci_id WHERE (facilities.faci_name = '" + myButtonText + "')";        sda = new SqlDataAdapter(sql,conn);        sda.Fill(ds,"faci_orders");       //动态添加命令按钮并添加属性事件        for (int i = 0; i < ds.Tables["faci_orders"].Rows.Count; i++)        {            myButton = new Button();            myButton.Text = ds.Tables["faci_orders"].Rows[i]["order_name"].ToString();            myButton.ID = ds.Tables["faci_orders"].Rows[i]["order_id"].ToString();            //设置按钮大小以及委托事件            myButton.Width = 85;            myButton.Height = 30;            myButton.Click += new EventHandler(orderBtn_Click);            Panel2.Controls.Add(myButton);        }    }    protected void orderBtn_Click(object sender,EventArgs e)    {     //根据所点击按钮传送指令        Button myOrderBtn = (Button)sender;        Label2.Text =“你点击了按钮："+ myOrderBtn.Text.ToString();//没反应了？？    }