如何在c＃中访问iFrame的html内容？ [英] How do I access a html content of an iFrame in c#?

问题描述

我正在尝试访问iframe中的html元素，但它不起作用。

I am trying to access the html element inside an iframe but it doesnt work.

HtmlWindow hwMain = webBrowser1.Document.Window.Frames[0];
            HtmlElementCollection eleCaptcha = hwMain.Document.GetElementsByTagName("iframe");

            foreach (HtmlElement he in eleCaptcha)
            {
                if (he.GetAttribute("name").Equals("VerifyimageFrame"))
                {
                    writeLogs(he.OuterHtml != null ? he.OuterHtml.ToString() : "Can't Find Element!");
                    he.Focus();
                    //Clipboard.SetImage(he);
                    HtmlElementCollection o = he.Document.Body.GetElementsByTagName("img");
                    foreach (HtmlElement he1 in o)
                    {
                        if (he1.GetAttribute("title").Equals("Refresh verification code"))
                        {
                            writeLogs(he1.OuterHtml != null ? he1.OuterHtml.ToString() : "Can't Find Element!");

                        }
                        else
                        {
                            MessageBox.Show("null");
                        }
                    }

推荐答案

制作IFrame Runat服务器



试试这个



http://stackoverflow.com/questions/1277776/changing-an-iframes-innerhtml-from-codebehind [ ^ ]



http://stackoverflow.com/questions/3945176/talking-to-iframe-from-asp-net -code-behind [ ^ ]

Make IFrame Runat Server

try this

http://stackoverflow.com/questions/1277776/changing-an-iframes-innerhtml-from-codebehind[^]

http://stackoverflow.com/questions/3945176/talking-to-iframe-from-asp-net-code-behind[^]

HTTP ：//www.htmlgoodies.com/beyond/css/filtering-iframe-content-using-jquery.html [ ^ ]

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