c# windows form - How received a tag value data into my textbox1?

Question

<input name="chkFile" value="2062223616_7147073260_1440589192619132.WMA" type="checkbox">

from this code I want only the value data

Example:

2062223616_7147073260_1440589192619132.WMA

below my code not working so please help me.

My code

HtmlElementCollection bColl = webBrowser2.Document.GetElementsByTagName("input");
            foreach (HtmlElement bEl in bColl)
            {
                if (bEl.GetAttribute("name").Equals("chkFile"))
                    showaudiourl.Text = bEl.OuterHtml.Split('"')[3];
            }

I am new in there so give me full details about regex solution. — krystin papadopoulos, Aug 26 '15 at 13:54
Please write full code & show me then I am putting this in my coding & trying. I am new so please give me full details pls. — krystin papadopoulos, Aug 26 '15 at 13:55

score 0 · Answer 1 · answered Aug 26 '15 at 14:14

Use webBrowser2.GetAttribute("value") to get the value you want.

HtmlElementCollection bColl = webBrowser2.Document.GetElementsByTagName("input");
foreach (HtmlElement bEl in bColl) {
    if (bEl.GetAttribute("name").Equals("chkFile")) {
        showaudiourl.Text = bEl.GetAttribute("value");    //Changes here
    }
}

score 0 · Answer 2 · answered Aug 26 '15 at 14:31

All you need is add a piece of code telling the app to wait until the web browser document gets initialized:

webBrowser2.Navigate(@"C:\tmp.html");                        // Use your own URL here
while (webBrowser2.ReadyState != WebBrowserReadyState.Complete) // Without it, 
   Application.DoEvents();                                // the document will be null

HtmlElementCollection bColl = webBrowser2.Document.GetElementsByTagName("input");
foreach (HtmlElement bEl in bColl)
{
   if (bEl.GetAttribute("name").Equals("chkFile"))
      showaudiourl.Text = bEl.GetAttribute("value");
}

The value should be accessed with bEl.GetAttribute("value").

Alternatively, you could use a webBrowser2_DocumentCompleted event to process the HTML document there.

And surely you do not need a regex. On SO, a lot of people would downvote your question if you ask to parse an HTML document with regex linking to [RegEx match open tags except XHTML self-contained tags](http://stackoverflow.com/a/1732454/3832970) post. — Wiktor Stribiżew, Aug 26 '15 at 14:32

c# windows form - How received a tag value data into my textbox1?

2 Answers2