Read HTML code from iframe using Webbrowser C#

Question

How to read IFRAME html code using WebBrowser?

I have site with iframe, and after few clicks new URL opens inside this IFRAME with some portion of HTML CODE. Is there a possiblity to read this?. When I am trying to Navigate() to this URL, I am redirected to main page of this site (it is not possible to open this link twice).

Uri IFRAME_URL = webBrowser1.Document.Window.Frames[0].Url;

Maybe there is something similar to:

Uri IFRAME_URL = webBrowser1.Document.Window.Frames[0].  ... DOCUMENTTEXT;

@Kiquenet see this answer http://stackoverflow.com/questions/20013498/webbrowser-iframe-access-causing-unauthorized-access/20494120#20494120 — David Thompson, Dec 10 '13 at 18:25

score 4 · Answer 1 · answered Nov 10 '10 at 16:12

4

Try:

string content = webBrowser1.Document.Window.Frames[0].WindowFrameElement.InnerText;

answered Nov 10 '10 at 16:12

string content = webBrowser1.Document.Window.Frames[0].WindowFrameElement.InnerText; – Luke Nov 10 '10 at 16:49
I used this and displayed content. I received URL of iframe ;-) – Luke Nov 10 '10 at 16:50
Ah, sorry I meant "content" as variable. Instead of HTML code (source) I received URL of my iframe. But thanks anyway! – Luke Nov 10 '10 at 22:28

score 1 · Answer 2 · answered Jun 30 '12 at 09:01

1

try:

string content = webBrowser1.Document.Window.Frames[0].Document.Body.InnerText

answered Jun 30 '12 at 09:01

o17t H1H' S'k

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score 1 · Answer 3 · answered Dec 01 '10 at 01:34

1

You can also acquire various items via mshtml types:

Set a reference to the "Microsoft HTML Object Library" under COM references.

Set your using statement:

using mshtml;

Then tap into the mshtml API to snatch the source:

HTMLFrameBase frame = yourWebBrowserControl.Document.GetElementById( "yourFrameId" ).DomElement as HTMLFrameBase;

If "frame" isn't null after that line, it has a lot of items hanging off it for your use.

answered Dec 01 '10 at 01:34

TheHolyTerrah

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That's because of constraints restricting access between frames to circumvent cross-site scripting attacks. – TheHolyTerrah Oct 01 '12 at 15:13

score 0 · Answer 4 · answered Mar 02 '13 at 22:52

A WebBrowser Control window can contain more that one iframe and .net supports frame collection so why not use something like this:

// Setup a string variable...
string html = string.Empty;

// webBrowser1.Document.Window.Frames gets a collection of iframes contained in the current document...
// HTMLWindow is the iterator for the Collection...
foreach (HtmlWindow frame in webBrowser1.Document.Window.Frames)
{
html += frame.Document.Body.OuterHtml;
}

This way, maybe with a little adjustment you can get all you need from the iframe containers you need.

Read HTML code from iframe using Webbrowser C#

4 Answers4

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