从父aspx页面调用子iframe方法

Question

I've created one aspx page Default.aspx. 我创建了一个aspx页面Default.aspx。 It contains iframe with child.aspx. 它包含带有child.aspx的iframe。 File Child.cs contains web methods which should be called by parent page. 文件Child.cs包含应由父页面调用的Web方法。

As I understand I need to receive the instance of Child class so then I'll be able to them call. 据我了解，我需要接收Child类的实例，这样我就可以调用它们。 How can I make this? 我该怎么做？

I will be really appreciated for constructive solution, 对于建设性的解决方案，我将非常感激，

Default.aspx (Parent page) Default.aspx（父页面）

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Parent_Child_Iframe._Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:ScriptManager ID="ScriptManager1" runat="server">
        </asp:ScriptManager>
        <asp:Button ID="btGetDataFromChild" runat="server" Text="Get Data from Child" />
        <asp:UpdatePanel ID="UpdatePanel1" runat="server">
            <ContentTemplate>
                <iframe id="I1" height="300px" name="I1" src="child.aspx" width="400px"></iframe>
            </ContentTemplate>
        </asp:UpdatePanel>
    </div>
    </form>
</body>
</html>

Child.aspx Child.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Child.aspx.cs" Inherits="Parent_Child_Iframe.Child" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
        <br />
        <br />
        <br />
        <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
    </div>
    </form>
</body>
</html>

Child.aspx.cs Child.aspx.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace Parent_Child_Iframe
{
    public partial class Child : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }
        public string getResultData ()
        {
            return TextBox1.Text + TextBox2.Text;
        }
    }
}

So How I can call getResultData () from Child.aspx.cs by clicking Button on the parent page. 因此，如何通过单击父页面上的Button从Child.aspx.cs调用getResultData（）。 The main difficulty is that I can't use Javascript to collect the information from TextBoxes because the task is more complicated and I can use only server methods. 主要的困难是我不能使用Javascript从TextBoxes收集信息，因为任务更加复杂并且只能使用服务器方法。

Thank you in advance, Best wishes, Greg. 预先感谢您，格雷格。

Answer 1

Thats not really the way iframes work. 那不是iframe运作的方式。 Remember, HTTP is a stateless protocol, which means that each request for a page is an independent request, and won't have any context of the previous request. 请记住，HTTP是一个无状态协议，这意味着对页面的每个请求都是一个独立的请求，并且不会包含先前请求的任何上下文。 What I think you would need to do, is either request the Child.aspx page with specific form or request variables, and the Child page should output the correct page accordingly. 我认为您需要做的是请求具有特定形式的Child.aspx页面或请求变量，并且Child页面应相应地输出正确的页面。

Could you explain what it is you want to achieve? 您能解释一下您要实现的目标吗？

从父aspx页面调用子iframe方法

问题描述

1 个解决方案

解决方案1
0 2010-07-26 13:38:59

从父aspx页面调用子iframe方法

问题描述

1 个解决方案

解决方案1 0 2010-07-26 13:38:59

解决方案1
0 2010-07-26 13:38:59