HtmlGenericControl control = new HtmlGenericControl("input");
control.Attributes.Add("type", "button");
control.Attributes.Add("onclick",Page.ClientScript.GetPostBackEventReference(this, "btnMyQuery")

if (Page.IsPostBack){ //獲得回發參數 string eventArgument = Page.Request.Form["__EVENTARGUMENT"]; if (!String.IsNullOrEmpty(eventArgument)   && eventArgument.Equals("btnMyQuery")) {   //執行您的回發處理代碼 }}