用C#类实现JavaScript的基本功能

本文介绍了一个 ASP.NET 应用中用于实现弹窗提示、页面跳转及窗口操作的实用类 JScript。该类提供了多种方法,如 JavaScript 弹窗提示、页面重定向、窗口关闭等,适用于各种 Web 开发场景。

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Web.SessionState;

/// <summary>
/// JScript 的摘要说明
/// 在开发过程中可以用的一些技巧文件
///本js也是从别的oa中提取来的
/// </summary>
public class JScript
{
    protected static HttpResponse Response;
    protected static HttpSessionState Session;
 public JScript()
 {
  //
  // TODO: 在此处添加构造函数逻辑
  //
 }
    /// <summary>
    /// 弹出JavaScript小窗口,并转向指定的页面
    /// </summary>
    /// <param name="message">弹出信息</param>
    /// <param name="toURL">专转向的网页</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));
  }
  /// <summary>
  /// 向客户端发送函数KendoPostBack(eventTarget, eventArgument)
  /// 服务器端可接收__EVENTTARGET,__EVENTARGUMENT的值
  /// </summary>
  /// <param name="page">System.Web.UI.Page 一般为this</param>
  public static void JscriptSender(System.Web.UI.Page page)
  {

   page.RegisterHiddenField("__EVENTTARGET","");
   page.RegisterHiddenField("__EVENTARGUMENT","");
   string s = @"  
<script language=Javascript>
      function KendoPostBack(eventTarget, eventArgument)
      {
    var theform = document.forms[0];
    theform.__EVENTTARGET.value = eventTarget;
    theform.__EVENTARGUMENT.value = eventArgument;
    theform.submit();
   }
</script>";
   
   page.RegisterStartupScript("sds",s);
  }
  /// <summary>
  /// 弹出JavaScript小窗口
  /// </summary>
  /// <param name="js">窗口信息</param>
  public static void Alert(string message)
  {
   message = StringUtil.DeleteUnVisibleChar(message);
   string js=@"<Script language='JavaScript'>
                    alert('"+ message +"');</Script>";
   HttpContext.Current.Response.Write(js);
  }
  public static void Alert(object message)
  {
   string js=@"<Script language='JavaScript'>
                    alert('{0}'); 
                  </Script>";
   HttpContext.Current.Response.Write(string.Format(js,message.ToString()));
  }
   
    /// <summary>
    /// 此js不明白具体的用法
    /// </summary>
    /// <param name="message"></param>
    /// <param name="strWinCtrl"></param>
  public static void RtnRltMsgbox(object message,string strWinCtrl)
  {  
   string js = @"<Script language='JavaScript'>
      strWinCtrl = true;
                     strWinCtrl = if(!confirm('"+ message +"'))return false;</Script>";
   HttpContext.Current.Response.Write(string.Format(js,message.ToString()));
  }
  
  /// <summary>
  /// 回到历史页面
  /// </summary>
  /// <param name="value">-1/1</param>
  public static void GoHistory(int value)
  {
   string js=@"<Script language='JavaScript'>
                    history.go({0}); 
                  </Script>";
   HttpContext.Current.Response.Write(string.Format(js,value));
  }

  /// <summary>
  /// 关闭当前窗口
  /// </summary>
  public static void CloseWindow()
  {
   string js=@"<Script language='JavaScript'>
                    window.close(); 
                  </Script>";
   HttpContext.Current.Response.Write(js);    
   HttpContext.Current.Response.End(); 
  }

  /// <summary>
  /// 刷新父窗口
  /// </summary>
  public static void RefreshParent()
  {
   string js=@"<Script language='JavaScript'>
                    parent.location.reload();
                  </Script>";
   HttpContext.Current.Response.Write(js);    
  }

  /// <summary>
  /// 格式化为JS可解释的字符串
  /// </summary>
  /// <param name="s"></param>
  /// <returns></returns>
  public static string JSStringFormat(string s)
  {
   return s.Replace("/r","//r").Replace("/n","//n").Replace("'","//'").Replace("/"","///"");
  }

  /// <summary>
  /// 刷新打开窗口
  /// </summary>
  public static void RefreshOpener()
  {
   string js=@"<Script language='JavaScript'>
                    opener.location.reload();
                  </Script>";
   HttpContext.Current.Response.Write(js);    
  }

  /// <summary>
  /// 打开窗口
  /// </summary>
  /// <param name="url"></param>
  public static void OpenWebForm(string url)
  {
   
   /*…………………………………………………………………………………………*/
   /*修改人员:   */
   /*修改时间:  */
   /*修改目的: 新开页面去掉ie的菜单。。。      */
   /*注释内容:        */
   /*开始*/
   string js=@"<Script language='JavaScript'>
   //window.open('"+url+@"');
   window.open('"+url+@"','','height=0,width=0,top=0,left=0,location=no,menubar=no,resizable=yes,scrollbars=yes,status=yes,titlebar=no,toolbar=no,directories=no');
   </Script>";
   /*结束*/
   /*…………………………………………………………………………………………*/
   HttpContext.Current.Response.Write(js);    
  }
  public static void OpenWebForm(string url,string name,string future)
  {
   string js=@"<Script language='JavaScript'>
                     window.open('"+url+@"','"+name+@"','"+future+@"')
                  </Script>";
   HttpContext.Current.Response.Write(js);    
  }
  public static void OpenWebForm(string url,string formName)
  {
   /*…………………………………………………………………………………………*/
   /*修改人员:       */
   /*修改时间: 
   /*修改目的: 新开页面去掉ie的菜单。。。      */
   /*注释内容:        */
   /*开始*/
   string js=@"<Script language='JavaScript'>
   //window.open('"+url+@"','"+formName+@"');
   window.open('"+url+@"','"+formName+@"','height=0,width=0,top=0,left=0,location=no,menubar=no,resizable=yes,scrollbars=yes,status=yes,titlebar=no,toolbar=no,directories=no');
   </Script>";
   /*结束*/
   /*…………………………………………………………………………………………*/

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

  /// <summary>  
  /// 函数名:OpenWebForm 
  /// 功能描述:打开WEB窗口 
  /// 处理流程:
  /// 算法描述:
  /// 作 者:
  /// 日 期:
  /// 修 改:
  /// 日 期:
  /// 版 本:
  /// </summary>
  /// <param name="url">WEB窗口</param>
  /// <param name="isFullScreen">是否全屏幕</param>
  public static void OpenWebForm(string url,bool isFullScreen)
  {   
   string js=@"<Script language='JavaScript'>";
   if(isFullScreen)
   {
    js+="var iWidth = 0;";
    js+="var iHeight = 0;";
    js+="iWidth=window.screen.availWidth-10;";
    js+="iHeight=window.screen.availHeight-50;";
    js+="var szFeatures ='width=' + iWidth + ',height=' + iHeight + ',top=0,left=0,location=no,menubar=no,resizable=yes,scrollbars=yes,status=yes,titlebar=no,toolbar=no,directories=no';";
    js+="window.open('"+url+@"','',szFeatures);";
   }
   else
   {
    js+="window.open('"+url+@"','','height=0,width=0,top=0,left=0,location=no,menubar=no,resizable=yes,scrollbars=yes,status=yes,titlebar=no,toolbar=no,directories=no');";
   }
   js+="</Script>";
   HttpContext.Current.Response.Write(js);    
  }
  /// <summary>
  /// 转向Url制定的页面
  /// </summary>
  /// <param name="url"></param>
  public static void JavaScriptLocationHref(string url)
  {
   string js=@"<Script language='JavaScript'>
                    window.location.replace('{0}');
                  </Script>";
   js=string.Format(js,url);
   HttpContext.Current.Response.Write(js); 
  }

  /// <summary>
  /// 指定的框架页面转换
  /// </summary>
  /// <param name="FrameName"></param>
  /// <param name="url"></param>
  public static void JavaScriptFrameHref(string FrameName,string url)
  {
   string js=@"<Script language='JavaScript'>
     
                    @obj.location.replace(""{0}"");
                  </Script>";
   js = js.Replace("@obj",FrameName );
   js=string.Format(js,url);
   HttpContext.Current.Response.Write(js); 
  }

  /// <summary>
  ///重置页面
  /// </summary>
  public static void JavaScriptResetPage(string strRows)
  {
   string js=@"<Script language='JavaScript'>
                    window.parent.CenterFrame.rows='"+strRows+"';</Script>";
   HttpContext.Current.Response.Write(js);
  }
  /// <summary>
  /// 函数名:JavaScriptSetCookie
  /// 功能描述:客户端方法设置Cookie
  /// 作者:
  /// 日期:
  /// 版本:
  /// </summary>
  /// <param name="strName">Cookie名</param>
  /// <param name="strValue">Cookie值</param>
  public static void JavaScriptSetCookie(string strName,string strValue)
  {
   string js=@"<script language=Javascript>
   var the_cookie = '"+strName+"="+strValue+@"'
   var dateexpire = 'Tuesday, 01-Dec-2020 12:00:00 GMT';
   //document.cookie = the_cookie;//写入Cookie<BR>} <BR>
   document.cookie = the_cookie + '; expires='+dateexpire;   
   </script>";
   HttpContext.Current.Response.Write(js);
  }

  /// <summary>  
  /// 函数名:GotoParentWindow 
  /// 功能描述:返回父窗口 
  /// 处理流程:
  /// 算法描述:
  /// 作 者:
  /// 日 期: 2003-04-30 10:00
  /// 修 改:
  /// 日 期:
  /// 版 本:
  /// </summary>
  /// <param name="parentWindowUrl">父窗口</param>  
  public static void GotoParentWindow(string parentWindowUrl)
  {   
   string js=@"<Script language='JavaScript'>
                    this.parent.location.replace('"+parentWindowUrl+"');</Script>";
   HttpContext.Current.Response.Write(js);    
  }

  /// <summary>  
  /// 函数名:ReplaceParentWindow 
  /// 功能描述:替换父窗口 
  /// 处理流程:
  /// 算法描述:
  /// 作 者:
  /// 日 期: 2003-04-30 10:00
  /// 修 改:
  /// 日 期:
  /// 版 本:
  /// </summary>
  /// <param name="parentWindowUrl">父窗口</param>
  /// <param name="caption">窗口提示</param>
  /// <param name="future">窗口特征参数</param>
  public static void ReplaceParentWindow(string parentWindowUrl,string caption,string future)
  { 
   string js="";
   if(future!=null&&future.Trim()!="")
   {
    js=@"<script language=javascript>this.parent.location.replace('"+parentWindowUrl+"','"+caption+"','"+future+"');</script>";
   }
   else
   {
    js=@"<script language=javascript>var iWidth = 0 ;var iHeight = 0 ;iWidth=window.screen.availWidth-10;iHeight=window.screen.availHeight-50;
       var szFeatures = 'dialogWidth:'+iWidth+';dialogHeight:'+iHeight+';dialogLeft:0px;dialogTop:0px;center:yes;help=no;resizable:on;status:on;scroll=yes';this.parent.location.replace('"+parentWindowUrl+"','"+caption+"',szFeatures);</script>";
   }

   HttpContext.Current.Response.Write(js);
  }
  
  
  /// <summary>  
  /// 函数名:ReplaceOpenerWindow 
  /// 功能描述:替换当前窗体的打开窗口 
  /// 处理流程:
  /// 算法描述:
  /// 作 者:
  /// 日 期: 2003-04-30 16:00
  /// 修 改:
  /// 日 期:
  /// 版 本:
  /// </summary>
  /// <param name="openerWindowUrl">当前窗体的打开窗口</param>  
  public static void ReplaceOpenerWindow(string openerWindowUrl)
  {   
   string js=@"<Script language='JavaScript'>
                    window.opener.location.replace('"+openerWindowUrl+"');</Script>";
   HttpContext.Current.Response.Write(js);    
  }

  /// <summary>  
  /// 函数名:ReplaceOpenerParentWindow 
  /// 功能描述:替换当前窗体的打开窗口的父窗口 
  /// 处理流程:
  /// 算法描述:
  /// 作 者:
  /// 日 期: 2003-07-03 19:00
  /// 修 改:
  /// 日 期:
  /// 版 本:
  /// </summary>
  /// <param name="openerWindowUrl">当前窗体的打开窗口的父窗口</param>  
  public static void ReplaceOpenerParentFrame(string frameName,string frameWindowUrl)
  {   
   string js=@"<Script language='JavaScript'>
                    window.opener.parent." + frameName + ".location.replace('"+frameWindowUrl+"');</Script>";
   HttpContext.Current.Response.Write(js);    
  }

  /// <summary>  
  /// 函数名:ReplaceOpenerParentWindow 
  /// 功能描述:替换当前窗体的打开窗口的父窗口 
  /// 处理流程:
  /// 算法描述:
  /// 作 者:
  /// 日 期:
  /// 修 改:
  /// 日 期:
  /// 版 本:
  /// </summary>
  /// <param name="openerWindowUrl">当前窗体的打开窗口的父窗口</param>  
  public static void ReplaceOpenerParentWindow(string openerParentWindowUrl)
  {   
   string js=@"<Script language='JavaScript'>
                    window.opener.parent.location.replace('"+openerParentWindowUrl+"');</Script>";
   HttpContext.Current.Response.Write(js);    
  }

  /// <summary>  
  /// 函数名:CloseParentWindow 
  /// 功能描述:关闭窗口 
  /// 处理流程:
  /// 算法描述:
  /// 作 者:
  /// 日 期: 2003-04-30 16:00
  /// 修 改:
  /// 日 期:
  /// 版 本:
  /// </summary>
  public static void CloseParentWindow()
  {   
   string js=@"<Script language='JavaScript'>
                    window.parent.close(); 
                  </Script>";
   HttpContext.Current.Response.Write(js);
  }
  
  public static void CloseOpenerWindow()
  {   
   string js=@"<Script language='JavaScript'>
                    window.opener.close(); 
                  </Script>";
   HttpContext.Current.Response.Write(js);
  }  

  /// <summary>
  /// 函数名:ShowModalDialogJavascript 
  /// 功能描述:返回打开模式窗口的脚本 
  /// 处理流程:
  /// 算法描述:
  /// 作 者:
  /// 日 期:
  /// 修 改:
  /// 日 期:
  /// 版 本:
  /// </summary>
  /// <param name="webFormUrl"></param>
  /// <returns></returns>
  public static string ShowModalDialogJavascript(string webFormUrl)
  {
   string js=@"<script language=javascript>
       var iWidth = 0 ;
       var iHeight = 0 ;
       iWidth=window.screen.availWidth-10;
       iHeight=window.screen.availHeight-50;
       var szFeatures = 'dialogWidth:'+iWidth+';dialogHeight:'+iHeight+';dialogLeft:0px;dialogTop:0px;center:yes;help=no;resizable:on;status:on;scroll=yes';
       showModalDialog('"+webFormUrl+"','',szFeatures);</script>";
   return js;
  }

  public static string ShowModalDialogJavascript(string webFormUrl,string features)
  {
   string js=@"<script language=javascript>       
       showModalDialog('"+webFormUrl+"','','"+features+"');</script>";
   return js;
  }

  /// <summary>
  /// 函数名:ShowModalDialogWindow 
  /// 功能描述:打开模式窗口 
  /// 处理流程:
  /// 算法描述:
  /// 作 者:
  /// 日 期:
  /// 修 改:
  /// 日 期:
  /// 版 本:
  /// </summary>
  /// <param name="webFormUrl"></param>
  /// <returns></returns>
  public static void ShowModalDialogWindow(string webFormUrl)
  {
   string js=ShowModalDialogJavascript(webFormUrl);
   HttpContext.Current.Response.Write(js);
  }

  public static void ShowModalDialogWindow(string webFormUrl,string features)
  {
   string js=ShowModalDialogJavascript(webFormUrl,features);
   HttpContext.Current.Response.Write(js);
  }
  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=no";
   ShowModalDialogWindow(webFormUrl,features);   
  }

  public static void SetHtmlElementValue(string formName,string elementName,string elementValue)
  {   
   string js=@"<Script language='JavaScript'>if(document."+formName+"." + elementName +"!=null){document."+formName+"." + elementName +".value ="+ elementValue +";}</Script>";
   HttpContext.Current.Response.Write(js);
  }

        /// <summary>
        /// 判断Session中某键值是否存在,如果不存在,输出提示信息
        /// 并且转向相应页面
        /// </summary>
        /// <param name="SessionName">Session中键名称</param>
        /// <param name="Message">提示信息</param>
        /// <param name="RedirectUrl">要转向的页面</param>
    public static void CheckSession(string SessionName, string Message, string RedirectUrl)
        {
            Session = HttpContext.Current.Session;
            Response = HttpContext.Current.Response;
            if (Session[SessionName] == null)
            {
                WriteMessage(Message, false, false);
                string js = "top.document.location='" + RedirectUrl + "';";
                WriteJavaScript(js); ;
            }
        }

        /// <summary>
        /// 用Javascript的Window.alert()方法输出提示信息
        /// </summary>
        /// <param name="strMsg">要输出的信息</param>
        /// <param name="Back">输出信息后是否要history.back()</param>
        /// <param name="End">输出信息后是否要Response.end()</param>
    public static  void WriteMessage(string strMsg, bool Back, bool End)
        {
            Response = HttpContext.Current.Response;
            //将单引号替换,防止javascript出错
            strMsg = strMsg.Replace("'", "“");
            //将回车换行符去掉,防止javascript出错
            strMsg = strMsg.Replace("/r/n", "");
            Response.Write("<script language=javascript>alert('" + strMsg + "');</script>");
            if (Back)
                Response.Write("<script language=javascript>history.back();</script>");
            if (End)
                Response.End();
        }

        /// <summary>
        /// 以Response.Write()方式输出一条JavaScript语句
        /// </summary>
        /// <param name="strJavaScript">要输出的JavaScript语句</param>
    public static void WriteJavaScript(string strJavaScript)
        {
            Response = HttpContext.Current.Response;
            Response.Write("<script language=javascript>" + strJavaScript + "</script>");
        }
 }
 

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