asp.net中常用提示对话框

    /// <summary>
        /// 服务器端弹出alert对话框
        /// </summary>
        /// <param name="str_Message">提示信息</param>
        /// <param name="page">Page类</param>
        public static void Alert(string str_Message,Page page)
        {
            page.RegisterStartupScript("","<script>alert('"+str_Message+"');</script>");
        }
        /// <summary>
        /// 服务器端弹出alert对话框
        /// </summary>
        /// <param name="page">Page类</param>
        /// <param name="str_Message">提示信息</param>
        /// <param name="redirectPageUrl">关闭对话框后要跳转页的Url</param>
        public static void Alert(Page page,string str_Message,string redirectPageUrl)
        {
            page.RegisterStartupScript("","<script>alert('" + str_Message + "');document.location.href='"+redirectPageUrl + "';</script>");
        }
        /// <summary>
        /// 服务器端弹出alert对话框
        /// </summary>
        /// <param name="str_Ctl_Name">获得焦点控件Id值</param>
        /// <param name="str_Message">提示信息</param>
        /// <param name="page">Page类</param>
        public static void Alert(string str_Ctl_Name,string str_Message,Page page)
        {
            page.RegisterStartupScript("","<script>alert('"+str_Message+"');document.forms(0)."+str_Ctl_Name+".focus(); document.forms(0)."+str_Ctl_Name+".select();</script>");
        }
        /// <summary>
        /// 关闭窗体
        /// </summary>
        public static void Close()
        {
            HttpContext.Current.Response.Write("<script  language = 'javascript'>window.close()</script>");
        }

确认取消提示框：

     /// <summary>
    /// 控件点击消息确认提示框
    /// 说明：ShowIsConfirm方法要写在Page_Load里面。 如果写在 Control控件的Click下点两次控件才能弹出提示框 不知道什么原因，知道的给讲讲。
    /// </summary>
    /// <param name="Control">执行控件的ID</param>
    /// <param name="msg">提示信息</param>
    public static void ShowIsConfirm(System.Web.UI.WebControls.WebControl Control, string str_Message)
    {
        Control.Attributes.Add("onclick", "return confirm('" + str_Message + "');");
    }