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本文實(shí)例講述了ASP.NET中常用輸出JS腳本的類，針對過去輸出js腳本的類進(jìn)行了一定的改進(jìn)。在項(xiàng)目開發(fā)中非常具有實(shí)用價值。分享給大家供大家參考。具體如下：

很多時候在ASP.NET中我們經(jīng)常需要輸出一些JS腳本，比如彈出一個警告窗口，返回到歷史頁面等JS功能，我看到網(wǎng)上流傳得比較廣的是馬先光寫的一個JScript類，這個類基本將經(jīng)常用到的JS腳本包含了，非常方便，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>標(biāo)簽之外，破壞了原有XHTML的結(jié)構(gòu)，所以本人在滿足原功能的情況下，對JScript類做了進(jìn)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類的實(shí)例作為參數(shù)，不會影響原來的程序代碼。
整個程序的代碼如下：

復(fù)制代碼代碼如下:

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

/// summary>
/// 一些常用的Js調(diào)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lt;htmlgt;lt;/htmlgt;標(biāo)簽之外，破壞了整個xhtml的結(jié)構(gòu),
/// 而新版本則采用ClientScript.RegisterStartupScript(string msg)的方式輸出，不會改變xhtml的結(jié)構(gòu),
/// 不會影響執(zhí)行效果。
/// 為了向下兼容，所以新版本采用了重載的方式，新版本中要求一個System.Web.UI.Page類的實(shí)例。
/// 創(chuàng)建者：馬先光
/// 新版作者：周公
/// 修改版發(fā)布網(wǎng)址：http://blog.csdn.net/zhoufoxcn
/// /summary>
public class JScript
{
    #region 舊版本
    /// summary>
    /// 彈出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>
    /// 回到歷史頁面
    /// /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>
    /// 關(guān)閉當(dāng)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>
    /// 刷新打開窗口
    /// /summary>
    public static void RefreshOpener()
    {
        #region
        string js = @"Script language='JavaScript'>
                    opener.location.reload();
                  /Script>";
        HttpContext.Current.Response.Write(js);
        #endregion
    }

        HttpContext.Current.Response.Write(js);
        #endregion
    }

    /// summary>
    /// 轉(zhuǎn)向Url制定的頁面
    /// /summary>
    /// param name="url">連接地址/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>
    /// 打開指定大小位置的模式對話框
    /// /summary>
    /// param name="webFormUrl">連接地址/param>
    /// param name="width">寬/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)
    {
        #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>
    /// 彈出模態(tài)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>
    /// 彈出模態(tài)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>
    /// 彈出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>
    /// 彈出消息框并且轉(zhuǎn)向到新的URL
    /// /summary>
    /// param name="message">消息內(nèi)容/param>
    /// param name="toURL">連接地址/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>
    /// 回到歷史頁面
    /// /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>
    //        /// 關(guān)閉當(dāng)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>
    /// 刷新打開窗口
    /// /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>
    /// 打開指定大小的新窗體
    /// /summary>
    /// param name="url">地址/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, 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>
    /// 轉(zhuǎn)向Url制定的頁面
    /// /summary>
    /// param name="url">連接地址/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>
    /// 打開指定大小位置的模式對話框
    /// /summary>
    /// param name="webFormUrl">連接地址/param>
    /// param name="width">寬/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, 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>
    /// 彈出模態(tài)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>
    //        /// 彈出模態(tài)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
}

希望本文所述對大家的C#程序設(shè)計(jì)有所幫助。

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