asp.net一個事件中調用另一個事件

為ImageButton1註冊事件
protected void Page_Load(object sender, EventArgs e)
{
    ImageButton1.Click += new ImageClickEventHandler(Button1_Click);
}
protected void Button1_Click(object sender, EventArgs e)
{
    ClientScript.RegisterStartupScript(this.GetType(), "script", "alert('You Clicked the button');", true);
}
protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
{
     string strValue = "ABC";
}
這樣，點擊ImageButton1之後就會同時執行 ImageButton1_Click和Button1_Click兩個事件