在ASP.NET中我们经常需要输出一些JS脚本,比如弹出一个警告窗口,返回到历史页面等JS功能,我看到网上流传得比较广的是马先光写的一个JScript类,这个类基本将经常用到的JS脚本包含了,非常方便,唯一的不足是作者采用的Response.Write(string msg)的办法,这样造成输出的js脚本在<html></html>标签之外,破坏了原有XHTML的结构,所以本人在满足原功能的情况下,对JScript类做了进一步的改善,这个改善采用了重载的办法,增加了一个System.Web.UI.Page类的实例作为参数,不会影响原来的程序代码。
整个程序的代码如下:
- using System;
- using System.Collections.Generic;
- using System.Text;
- using System.Web;
- using System.Web.UI;
- /// <summary>
- /// 一些常用的Js调用
- /// 添加新版说明:由于旧版普遍采用Response.Write(string msg)的方式输出js脚本,这种
- /// 方式输出的js脚本会在html元素的<html></html>标签之外,破坏了整个xhtml的结构,
- /// 而新版本则采用ClientScript.RegisterStartupScript(string msg)的方式输出,不会改变xhtml的结构,
- /// 不会影响执行效果。
- /// 为了向下兼容,所以新版本采用了重载的方式,新版本中要求一个System.Web.UI.Page类的实例。
- /// 创建时间:2006-9-13
- /// </summary>
- public class JScript
- {
- #region 旧版本
- /// <summary>
- /// 弹出JavaScript小窗口
- /// </summary>
- /// <param name="js">窗口信息</param>
- public static void Alert(string message)
- {
- #region
- string js = @"<Script language='JavaScript'>
- alert('" + message + "');</Script>";
- HttpContext.Current.Response.Write(js);
- #endregion
- }
- /// <summary>
- /// 弹出消息框并且转向到新的URL
- /// </summary>
- /// <param name="message">消息内容</param>
- /// <param name="toURL">连接地址</param>
- public static void AlertAndRedirect(string message, string toURL)
- {
- #region
- string js = "<script language=javascript>alert('{0}');window.location.replace('{1}')</script>";
- HttpContext.Current.Response.Write(string.Format(js, message, toURL));
- #endregion
- }
- /// <summary>
- /// 回到历史页面
- /// </summary>
- /// <param name="value">-1/1</param>
- public static void GoHistory(int value)
- {
- #region
- string js = @"<Script language='JavaScript'>
- history.go({0});
- </Script>";
- HttpContext.Current.Response.Write(string.Format(js, value));
- #endregion
- }
- /// <summary>
- /// 关闭当前窗口
- /// </summary>
- public static void CloseWindow()
- {
- #region
- string js = @"<Script language='JavaScript'>
- parent.opener=null;window.close();
- </Script>";
- HttpContext.Current.Response.Write(js);
- HttpContext.Current.Response.End();
- #endregion
- }
- /// <summary>
- /// 刷新父窗口
- /// </summary>
- public static void RefreshParent(string url)
- {
- #region
- string js = @"<Script language='JavaScript'>
- window.opener.location.href='" + url + "';window.close();</Script>";
- HttpContext.Current.Response.Write(js);
- #endregion
- }
- /// <summary>
- /// 刷新打开窗口
- /// </summary>
- public static void RefreshOpener()
- {
- #region
- string js = @"<Script language='JavaScript'>
- opener.location.reload();
- </Script>";
- HttpContext.Current.Response.Write(js);
- #endregion
- }
- /// <summary>
- /// 打开指定大小的新窗体
- /// </summary>
- /// <param name="url">地址</param>
- /// <param name="width">宽</param>
- /// <param name="heigth">高</param>
- /// <param name="top">头位置</param>
- /// <param name="left">左位置</param>
- public static void OpenWebFormSize(string url, int width, int heigth, int top, int left)
- {
- #region
- string js = @"<Script language='JavaScript'>window.open('" + url + @"','','height=" + heigth + ",width=" + width + ",top=" + top + ",left=" + left + ",location=no,menubar=no,resizable=yes,scrollbars=yes,status=yes,titlebar=no,toolbar=no,directories=no');</Script>";
- HttpContext.Current.Response.Write(js);
- #endregion
- }
- /// <summary>
- /// 转向Url制定的页面
- /// </summary>
- /// <param name="url">连接地址</param>
- public static void JavaScriptLocationHref(string url)
- {
- #region
- string js = @"<Script language='JavaScript'>
- window.location.replace('{0}');
- </Script>";
- js = string.Format(js, url);
- HttpContext.Current.Response.Write(js);
- #endregion
- }
- /// <summary>
- /// 打开指定大小位置的模式对话框
- /// </summary>
- /// <param name="webFormUrl">连接地址</param>
- /// <param name="width">宽</param>
- /// <param name="height">高</param>
- /// <param name="top">距离上位置</param>
- /// <param name="left">距离左位置</param>
- public static void ShowModalDialogWindow(string webFormUrl, int width, int height, int top, int left)
- {
- #region
- string features = "dialogWidth:" + width.ToString() + "px"
- + ";dialogHeight:" + height.ToString() + "px"
- + ";dialogLeft:" + left.ToString() + "px"
- + ";dialogTop:" + top.ToString() + "px"
- + ";center:yes;help=no;resizable:no;status:no;scroll=yes";
- ShowModalDialogWindow(webFormUrl, features);
- #endregion
- }
- /// <summary>
- /// 弹出模态窗口
- /// </summary>
- /// <param name="webFormUrl"></param>
- /// <param name="features"></param>
- public static void ShowModalDialogWindow(string webFormUrl, string features)
- {
- string js = ShowModalDialogJavascript(webFormUrl, features);
- HttpContext.Current.Response.Write(js);
- }
- /// <summary>
- /// 弹出模态窗口
- /// </summary>
- /// <param name="webFormUrl"></param>
- /// <param name="features"></param>
- /// <returns></returns>
- public static string ShowModalDialogJavascript(string webFormUrl, string features)
- {
- #region
- string js = @"<script language=javascript>
- showModalDialog('" + webFormUrl + "','','" + features + "');</script>";
- return js;
- #endregion
- }
- #endregion
- #region 新版本
- /// <summary>
- /// 弹出JavaScript小窗口
- /// </summary>
- /// <param name="js">窗口信息</param>
- public static void Alert(string message, Page page)
- {
- #region
- string js = @"<Script language='JavaScript'>
- alert('" + message + "');</Script>";
- //HttpContext.Current.Response.Write(js);
- if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "alert"))
- {
- page.ClientScript.RegisterStartupScript(page.GetType(), "alert", js);
- }
- #endregion
- }
- /// <summary>
- /// 弹出消息框并且转向到新的URL
- /// </summary>
- /// <param name="message">消息内容</param>
- /// <param name="toURL">连接地址</param>
- public static void AlertAndRedirect(string message, string toURL, Page page)
- {
- #region
- string js = "<script language=javascript>alert('{0}');window.location.replace('{1}')</script>";
- //HttpContext.Current.Response.Write(string.Format(js, message, toURL));
- if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "AlertAndRedirect"))
- {
- page.ClientScript.RegisterStartupScript(page.GetType(), "AlertAndRedirect", string.Format(js, message, toURL));
- }
- #endregion
- }
- /// <summary>
- /// 回到历史页面
- /// </summary>
- /// <param name="value">-1/1</param>
- public static void GoHistory(int value, Page page)
- {
- #region
- string js = @"<Script language='JavaScript'>
- history.go({0});
- </Script>";
- //HttpContext.Current.Response.Write(string.Format(js, value));
- if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "GoHistory"))
- {
- page.ClientScript.RegisterStartupScript(page.GetType(), "GoHistory", string.Format(js, value));
- }
- #endregion
- }
- // /// <summary>
- // /// 关闭当前窗口
- // /// </summary>
- // public static void CloseWindow()
- // {
- // #region
- // string js = @"<Script language='JavaScript'>
- // parent.opener=null;window.close();
- // </Script>";
- // HttpContext.Current.Response.Write(js);
- // HttpContext.Current.Response.End();
- // #endregion
- // }
- /// <summary>
- /// 刷新父窗口
- /// </summary>
- public static void RefreshParent(string url, Page page)
- {
- #region
- string js = @"<Script language='JavaScript'>
- window.opener.location.href='" + url + "';window.close();</Script>";
- //HttpContext.Current.Response.Write(js);
- if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "RefreshParent"))
- {
- page.ClientScript.RegisterStartupScript(page.GetType(), "RefreshParent", js);
- }
- #endregion
- }
- /// <summary>
- /// 刷新打开窗口
- /// </summary>
- public static void RefreshOpener(Page page)
- {
- #region
- string js = @"<Script language='JavaScript'>
- opener.location.reload();
- </Script>";
- //HttpContext.Current.Response.Write(js);
- if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "RefreshOpener"))
- {
- page.ClientScript.RegisterStartupScript(page.GetType(), "RefreshOpener", js);
- }
- #endregion
- }
- /// <summary>
- /// 打开指定大小的新窗体
- /// </summary>
- /// <param name="url">地址</param>
- /// <param name="width">宽</param>
- /// <param name="heigth">高</param>
- /// <param name="top">头位置</param>
- /// <param name="left">左位置</param>
- public static void OpenWebFormSize(string url, int width, int heigth, int top, int left, Page page)
- {
- #region
- string js = @"<Script language='JavaScript'>window.open('" + url + @"','','height=" + heigth + ",width=" + width + ",top=" + top + ",left=" + left + ",location=no,menubar=no,resizable=yes,scrollbars=yes,status=yes,titlebar=no,toolbar=no,directories=no');</Script>";
- //HttpContext.Current.Response.Write(js);
- if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "OpenWebFormSize"))
- {
- page.ClientScript.RegisterStartupScript(page.GetType(), "OpenWebFormSize", js);
- }
- #endregion
- }
- /// <summary>
- /// 转向Url制定的页面
- /// </summary>
- /// <param name="url">连接地址</param>
- public static void JavaScriptLocationHref(string url, Page page)
- {
- #region
- string js = @"<Script language='JavaScript'>
- window.location.replace('{0}');
- </Script>";
- js = string.Format(js, url);
- //HttpContext.Current.Response.Write(js);
- if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "JavaScriptLocationHref"))
- {
- page.ClientScript.RegisterStartupScript(page.GetType(), "JavaScriptLocationHref", js);
- }
- #endregion
- }
- /// <summary>
- /// 打开指定大小位置的模式对话框
- /// </summary>
- /// <param name="webFormUrl">连接地址</param>
- /// <param name="width">宽</param>
- /// <param name="height">高</param>
- /// <param name="top">距离上位置</param>
- /// <param name="left">距离左位置</param>
- public static void ShowModalDialogWindow(string webFormUrl, int width, int height, int top, int left, Page page)
- {
- #region
- string features = "dialogWidth:" + width.ToString() + "px"
- + ";dialogHeight:" + height.ToString() + "px"
- + ";dialogLeft:" + left.ToString() + "px"
- + ";dialogTop:" + top.ToString() + "px"
- + ";center:yes;help=no;resizable:no;status:no;scroll=yes";
- ShowModalDialogWindow(webFormUrl, features, page);
- #endregion
- }
- /// <summary>
- /// 弹出模态窗口
- /// </summary>
- /// <param name="webFormUrl"></param>
- /// <param name="features"></param>
- public static void ShowModalDialogWindow(string webFormUrl, string features, Page page)
- {
- string js = ShowModalDialogJavascript(webFormUrl, features);
- //HttpContext.Current.Response.Write(js);
- if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "ShowModalDialogWindow"))
- {
- page.ClientScript.RegisterStartupScript(page.GetType(), "ShowModalDialogWindow", js);
- }
- }
- // /// <summary>
- // /// 弹出模态窗口
- // /// </summary>
- // /// <param name="webFormUrl"></param>
- // /// <param name="features"></param>
- // /// <returns></returns>
- // public static string ShowModalDialogJavascript(string webFormUrl, string features)
- // {
- // #region
- // string js = @"<script language=javascript>
- // showModalDialog('" + webFormUrl + "','','" + features + "');</script>";
- // return js;
- // #endregion
- // }
- #endregion
- }