在ASP.NET中我們經常需要輸出一些JS腳本,比如彈出一個警告視窗,傳回到曆史頁面等JS功能,我看到網上流傳得比較廣的是馬先光寫的一個 JScript類,這個類基本将經常用到的JS腳本包含了,非常友善,唯一的不足是作者采用的Response.Write(string msg)的辦法,這樣造成輸出的js腳本在<html></html>标簽之外,破壞了原有XHTML的結構,是以本人在滿足原功能的情況下,對JScript類做了進一步的改善,這個改善采用了重載的辦法,增加了一個System.Web.UI.Page類的執行個體作為參數,不會影響原來的程式代碼。
整個程式的代碼如下:
代碼
using System;
using System.Collections.Generic;
using System.Text;
using System.Web;
using System.Web.UI;
/// <summary>
/// 一些常用的Js調用
/// 添加新版說明:由于舊版普遍采用Response.Write(string msg)的方式輸出js腳本,這種
/// 方式輸出的js腳本會在html元素的<html></html>标簽之外,破壞了整個xhtml的結構,
/// 而新版本則采用ClientScript.RegisterStartupScript(string msg)的方式輸出,不會改變xhtml的結構,
/// 不會影響執行效果。
/// 為了向下相容,是以新版本采用了重載的方式,新版本中要求一個System.Web.UI.Page類的執行個體。
/// 建立時間:2006-9-13
/// 建立者:馬先光
/// 新版作者:周公
/// 修改日期:2007-4-17
/// 修改版釋出網址:
/// </summary>
public class JScript
{
#region 舊版本
/// <summary>
/// 彈出JavaScript小視窗
/// </summary>
/// <param name="js">視窗資訊</param>
public static void Alert(string message)
{
#region
string js = @"<Script language='JavaScript'>
alert('" + message + "');</Script>";
HttpContext.Current.Response.Write(js);
#endregion
}
/// 彈出消息框并且轉向到新的URL
/// <param name="message">消息内容</param>
/// <param name="toURL">連接配接位址</param>
public static void AlertAndRedirect(string message, string toURL)
string js = "<script language=javascript>alert('{0}');window.location.replace('{1}')</script>";
HttpContext.Current.Response.Write(string.Format(js, message, toURL));
/// 回到曆史頁面
/// <param name="value">-1/1</param>
public static void GoHistory(int value)
history.go({0});
</Script>";
HttpContext.Current.Response.Write(string.Format(js, value));
/// 關閉目前視窗
public static void CloseWindow()
parent.opener=null;window.close();
HttpContext.Current.Response.End();
/// 重新整理父視窗
public static void RefreshParent(string url)
window.opener.location.href='" + url + "';window.close();</Script>";
/// 重新整理打開視窗
public static void RefreshOpener()
opener.location.reload();
/// 打開指定大小的新窗體
/// <param name="url">位址</param>
/// <param name="width">寬</param>
/// <param name="heigth">高</param>
/// <param name="top">頭位置</param>
/// <param name="left">左位置</param>
public static void OpenWebFormSize(string url, int width, int heigth, int top, int left)
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>";
/// 轉向Url制定的頁面
/// <param name="url">連接配接位址</param>
public static void JavaScriptLocationHref(string url)
window.location.replace('{0}');
js = string.Format(js, url);
/// 打開指定大小位置的模式對話框
/// <param name="webFormUrl">連接配接位址</param>
/// <param name="height">高</param>
/// <param name="top">距離上位置</param>
/// <param name="left">距離左位置</param>
public static void ShowModalDialogWindow(string webFormUrl, int width, int height, int top, int left)
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);
/// 彈出模态視窗
/// <param name="webFormUrl"></param>
/// <param name="features"></param>
public static void ShowModalDialogWindow(string webFormUrl, string features)
string js = ShowModalDialogJavascript(webFormUrl, features);
/// <returns></returns>
public static string ShowModalDialogJavascript(string webFormUrl, string features)
string js = @"<script language=javascript>
showModalDialog('" + webFormUrl + "','','" + features + "');</script>";
return js;
#endregion
#region 新版本
public static void Alert(string message, Page page)
//HttpContext.Current.Response.Write(js);
if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "alert"))
{
page.ClientScript.RegisterStartupScript(page.GetType(), "alert", js);
}
public static void AlertAndRedirect(string message, string toURL, Page page)
//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));
public static void GoHistory(int value, Page page)
//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));
// /// <summary>
// /// 關閉目前視窗
// /// </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
// }
public static void RefreshParent(string url, Page page)
if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "RefreshParent"))
page.ClientScript.RegisterStartupScript(page.GetType(), "RefreshParent", js);
public static void RefreshOpener(Page page)
if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "RefreshOpener"))
page.ClientScript.RegisterStartupScript(page.GetType(), "RefreshOpener", js);
public static void OpenWebFormSize(string url, int width, int heigth, int top, int left, Page page)
if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "OpenWebFormSize"))
page.ClientScript.RegisterStartupScript(page.GetType(), "OpenWebFormSize", js);
public static void JavaScriptLocationHref(string url, Page page)
if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "JavaScriptLocationHref"))
page.ClientScript.RegisterStartupScript(page.GetType(), "JavaScriptLocationHref", js);
public static void ShowModalDialogWindow(string webFormUrl, int width, int height, int top, int left, Page page)
ShowModalDialogWindow(webFormUrl, features, page);
public static void ShowModalDialogWindow(string webFormUrl, string features, Page page)
if (!page.ClientScript.IsStartupScriptRegistered(page.GetType(), "ShowModalDialogWindow"))
page.ClientScript.RegisterStartupScript(page.GetType(), "ShowModalDialogWindow", js);
// /// 彈出模态視窗
// /// <param name="webFormUrl"></param>
// /// <param name="features"></param>
// /// <returns></returns>
// public static string ShowModalDialogJavascript(string webFormUrl, string features)
// string js = @"<script language=javascript>
// showModalDialog('" + webFormUrl + "','','" + features + "');</script>";
// return js;
}