App_Code/JavaScriptHelper.cs

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using System;
using System.Collections.Generic;
using System.Text;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;

namespace CommonLib
{
    public class JavaScriptHelper
    {
        /// <summary>
        /// 弹出JavaScript小窗口
        /// </summary>
        /// <param name="strMessage">提示信息</param>
        public static void Alert(string strMessage)
        {
            System.Web.HttpContext.Current.Response.Write("<script language=\"javascript\">alert(\"" + strMessage + "\");</script>");
        }

        /// <summary>
        /// 弹出JavaScript小窗口
        /// </summary>
        /// <param name="strMessage">提示信息</param>
        public static void Alert(string strMessage, Page page)
        {
            string key = "";
            string strScript = "<script language=\"javascript\">alert(\"" + strMessage + "\");</script>";
            ClientScriptManager cs = page.ClientScript;
            Type type = page.GetType();
            if (!cs.IsStartupScriptRegistered(key))
            {
                cs.RegisterStartupScript(type, key, strScript);
            }
        }

        /// <summary>
        /// 弹出JavaScript小窗口并重新定向到新的URL
        /// </summary>
        /// <param name="strMessage">提示信息</param>
        /// <param name="strRedirectUrl">新URL</param>
        public static void AlertAndRedirect(string strMessage, string strRedirectUrl)
        {
            System.Web.HttpContext.Current.Response.Write(String.Format("<script language=\"javascript\">alert(\"{0}\");window.location.replace(\"{1}\")</script>", strMessage, strRedirectUrl));
        }

        /// <summary>
        /// 弹出JavaScript小窗口并重新定向到新的URL
        /// </summary>
        /// <param name="strMessage">提示信息</param>
        /// <param name="strRedirectUrl">新URL</param>
        public static void AlertAndRedirect(string strMessage, string strRedirectUrl, Page page)
        {
            string key = "";
            string strScript = String.Format("<script language=\"javascript\">alert(\"{0}\");window.location.replace(\"{1}\")</script>", strMessage, strRedirectUrl);
            ClientScriptManager cs = page.ClientScript;
            Type type = page.GetType();
            if (!cs.IsStartupScriptRegistered(key))
            {
                cs.RegisterStartupScript(type, key, strScript);