javascript 返回新窗口的值

<HTML>
    <HEAD>
        <title>NewOpen</title>
        <meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
        <meta name="CODE_LANGUAGE" Content="C#">
        <meta name="vs_defaultClientScript" content="JavaScript">
        <meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
        <script language="javascript">
         function OpenImage()
         {
            window.open("Open.aspx","sdf","width=600,height=400,status=yes,toolbar=no,menubar=no,location=no,scrollbars=yes,resizable=yes");
            return false;
         }
        </script>
    </HEAD>
    <body>
        <form id="Form1" method="post" runat="server">
            <a href="javascript:" onclick="return OpenImage();">打開新窗口</a><br>
            <asp:Image id="img1" runat="server" ImageUrl="image/001.gif"></asp:Image>
        </form>
    </body>
</HTML>

Open.aspx
<HTML>
    <HEAD>
        <title>Open</title>
        <meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
        <meta name="CODE_LANGUAGE" Content="C#">
        <meta name="vs_defaultClientScript" content="JavaScript">
        <meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
        <script language="javascript">
        function PI(url)
        {
            var a = opener.document.getElementById("img1");
            a.src = url;
            window.close();
        }
        </script>
    </HEAD>
    <body MS_POSITIONING="GridLayout">
        <form id="Form1" method="post" runat="server">
        </form>
    </body>
</HTML>

Open.aspx.cs
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;

namespace WebApplication1
{
    /// <summary>
    /// Summary description for Open.
    /// </summary>
    public class Open : System.Web.UI.Page
    {

        #region Web Form Designer generated code
        override protected void OnInit(EventArgs e)
        {
            //
            // CODEGEN: This call is required by the ASP.NET Web Form Designer.
            //
            InitializeComponent();
            base.OnInit(e);
        }
       
        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InitializeComponent()
        {   
            this.Load += new System.EventHandler(this.Page_Load);
        }
        #endregion
   

        private void Page_Load(object sender, System.EventArgs e)
        {
            // 在此处放置用户代码以初始化页面
            if(!IsPostBack)
            {
                Display();
            }
        }


        private void Display()
        {
            Response.Write("<table cellpadding=0 cellspacing=0 border=0 align='center' width='100%'><tr>");
            string appUrl;
 
            //得到应用程序路径
            if (Request.ApplicationPath == "/")
                appUrl = Request.ApplicationPath;
            else
                appUrl = Request.ApplicationPath + "/";
  
            Response.Write(imageFileLocation);
            string appPath = HttpContext.Current.Request.PhysicalApplicationPath;//获得应用程序物理路径
            string imageFolderPath = appPath + "image";//获得头像目录
            string[] filesArray = System.IO.Directory.GetFiles(imageFolderPath,"*");//得到所有的头像图片文件
            int i = 0;//用他来做循环,每行输出8个头像图片
            foreach(string imageFile in filesArray)
            {
                string imageFileName = imageFile.Substring(imageFile.LastIndexOf("\\")+1);//取的图片的真实名字,不包含路径
                string imageFileLocation = appUrl.Substring(appUrl.LastIndexOf("\\")+1);
                //取得头像图片路径
                imageFileLocation += "image";
                imageFileLocation += "/";
                imageFileLocation += imageFileName;
                string str = "<td align='center' width='25%'>"+"<a href=javascript:PI('"+imageFileLocation+"')><img border='0' src='"+imageFileLocation+"'></a>"+"</td>";
                Response.Write(str);
                i++;//每执行一次i加1
                if(i%5==0)
                {
                    Response.Write("</tr><tr>");//如果已经是5个头像了,就换行
                }
            }
            Response.Write("</tr></table>");
        }
    }

}
原文地址:https://www.cnblogs.com/Bluer/p/613388.html