Obtain HTML Content From Forums
Jun 9, 2011After trying to port a C++ program which was a console application where it crawled the forums with the url provided and in the end stored the result inside a database for further analysis.
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After trying to port a C++ program which was a console application where it crawled the forums with the url provided and in the end stored the result inside a database for further analysis.
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A ListView Column's with is set to -1 meaning its width is automatically set the width of the widest cell text in the column. I need the width automatcally set but I'd like to know the actual width of the column.
View 1 RepliesI want my application to open a web page that has an iframe within it named "test_iframe". Now I want to obtain the text being displayed in test_iframe. How do I get this content (I dont need the HTML code, only text being displayed in that page). Also if the iframe is hidden, can I obtain the content in such a scenario also?
View 6 RepliesI am attempting to obtain the price from a DIV tag in this HTML:[code].......
I've tried a few different combinations to get the price. I imagine I have to use .InnerText, but I can't seem to figure out how to split up the tag in order to use .InnerText.
I have another question.I have taken an HTML file called "template.html" and got its content. Then I change some variables and save it to a new file in the same directory. Afterwards, there is something else I need to do before saving but I don't know how.In the template.html file, I have a table which should represent a table from a SQL database which means I would need to loop it. But I don't know how to loop that.
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I have some formatted text and tables which I've copied to a Rich Text Box. Is there a .Net function or something to convert the RTF content into HTML?
View 4 RepliesI'm searching to match all the content between 2 tag <a and </a> My page is always the same,
<a class="applink" href="myLINK" target="..." onClick="..."><img src="..." border="0" alt="..." title="..." align=bottom hspace=3 width="32" height="32"><br>xxxxx</br></a>
A would like match all part of html code where code like this.
so <a class="applink" [...] </a> (!!!! with the tag <img for example --> no [^>]*)
What I would like to know is how to obtain form input elements during an httpwebrequest?
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Is it possible to obtain these input elements during an httpwebrequest without having to view the html code?
I have .html file in my local drive, i wish to read the content of a table in it and to be stored into sql table. how to code it using vb.net?
View 1 RepliesI want to get tags content in a string with regular expression. I wrote it for just one line. When the content changed into some lines from one line, Regex will never do pattern on the tag. I choose RegexOptions.Multiline + RegexOptions.Singleline for finding options.My pattern in low level: (>)[ a-z A-z 0-9 ]*(</)
View 2 RepliesI have parsed html code so it looks like this:
Quote:
<ul>
<li style="color:#cc3300">
<div class="myclass">
<span class="span"><strong>Content i need #1</strong></span>
<span class="span">
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I want get content from a website by url be input from textbox1 and output in textbox2 is this post content.
It isn't type html because I search and test but not show this post content, it show all code html pages of url.
Youtube video
demo :
Link content copy : Click Here
Link content source : Click Here
I want to read the HTML from a frame in a web page. I have started with a WebBrowser, which I browse through manually, attempting to scrape the details as I go. The reasn for using Web Browser is that it involves a complex form, which I can't really replicate in code.If I directly query the WebBrowser info I get very little, and the frame data id represented simply by a FRAME TAG, and a simple URI with no form data (it needs the data to return the content)I tried the Web Browser documentStream, and again I get very little.The closest I got to the full HTML is the following code. However it is missing the OBJECT tag and it's contents, which is what I absolutely need:
htmlwin = wb.Document.Window
For Each frame As HtmlWindow In htmlwin.Frames
For Each el In frame.Document.All
[code]......
Trying to print HTML dynamically but prints the source code of the page instead of HTML content.
I tried to use "System.Drawing.Printing" name space, but the only printing that i get is the actual html code.
Does anyone know the way to dynamically print those files from my application ?
I am writing a code to automate a webside. i succeeded in one website which have no frames. But if there is a frames, the code reads the element outside the frames.this code is used to get elements from one form a = f.IHTMLFormElement_item(count)How can we read the elements inside the frame?
View 2 RepliesI want to show html formatted string in my winform application. What control should I use?
View 5 Repliesi am putting this article in the right section. Actually i need a way to import all the controls i have in my html file on the vb.net application windows form.Basically i want a way to have a replica of my html page on to the vb.net windows form.in finding a way to read the content of the html file as we read the content of the xml file in vb.net.
View 1 RepliesWebBrowser Example.zip IntroductionBecause the WebBrowser control that we use in .NET is a COM control, not all of its uses are straightforward and some of them (even those which seem like they should be easy) require that we dip into our Interop toolbox in order to properly implement them.
A perfect example of this is loading HTML content into the WebBrowser from memory, rather than a file or a URL. Anyone who's ever used the WebBrowser control before is familiar with the Navigate2 method, which tells the control to load content from a URL (or path to a file). Loading HTML content from memory, however, is a rather elusive practice because of the many steps involved in making it work.
MSHTML.HTMLDocumentYou might notice that the WebBrowser control exposes a "document" property. The object returned by this property can be coerced to the type of "mshtml.HTMLDocument" (you must add a reference to MSHTML to your project in order to make this work) as follows:
Code:Dim clsDocument As mshtml.HTMLDocument = CType(WebBrowser.Document, mshtml.HTMLDocument)
(NOTE: You will have to add a reference to the COM library MSHTML to your project to make this compile)
Once we create an instance of HTMLDocument, a whole new world opens up to us, providing all sorts of DOM access to the content of any given Web page.
If we were to create our own HTMLDocument object from memory, we could use the "write" method to write HTML content to the document from a string variable, like this:
Code:'initialize the document object within the HTMLDocument class... clsDocument.close() clsDocument.open("about:blank")
'write the HTML to the document using the MSHTML "write" method... Dim clsHTML() As Object = {sHTML} m_clsDocument.write(clsHTML) clsHTML= Nothing
WebBrowser Control ImplementationUsing the HTMLDocument returned by the "document" property of the WebBrowser control, however, is not as straight-forward. Because of the way that this object is created and initialized in memory (by the COM WebBrowser control), the "write" method fails when called as above. In order to write content to the HTMLDocument exposed by the WebBrowser control, we must first marshal the string value to a memory space that is compatible with COM. Once the string is properly marshalled, the COM interface IPersistStreamInit (implemented by the HTMLDocument class) must be used to pass the value into the object.
Interop DeclarationsIn order to pull all of this off, we must declare several Interop pieces, including an enumeration, a function, and two interfaces. The declarations for these pieces are as follows:
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I'm writing a small program that loads a folders contained file names into a list box, you then double click one of the file names listed and it appears within the programs text area where the user may freely edit it. I then have given the users options to export the data contained within the text box to a word template. What I'd like to do is add a button which the user can click in order to strip away all the html within the text areas content. I found a solution but for some reason I can't make it work. There are no errors displaying nor does the program crash out, it simply isn't doing what it should be doing.
The function I'm using is below:
Function stripHTML(ByVal strHTML)
'Strips the HTML tags from strHTML using split and join
'Ensure that strHTML contains something
If len(strHTML) = 0 Then
stripHTML = strHTML
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I've used the below snippet in an attempt to put the function to work in the text box.
Private Sub btnHTMLstrip_click()
' calls function stripHTML, applies to text box
richTxtBox.Text = stripHTML(richTxtBox.Text)
End Sub
So, its not working as it should?
What is the best way to implement a rubber band /focus rectangle on a web page?In other words, I want to be able to navigate to a web page like people.com and use the rubber band / focus rectangle to some html content (images and/or text)......and I do realize I can simply highlight the content that I want but I am trying to do this via the rubber band / focus rectangle...
View 3 RepliesI've been seeing a lot of people reference getting HTML elements using the web browser control. And it seems to be something I may want to utilize in a program of mine.
a program which will get the html of an imageboard and check for updates, without loading any content other than the html (thus saving bandwidth). I've checked and this is not against any TOS.
But here's the thing, I don't want to actually navigate to the web page, because that'll load everything anyways. Is there a way I can search for HTML elements (and get their content) without actually "running" the page (for lack of a better word).
I am trying to implement a webservice but I am receiving this error :Client found response content type of 'text/html', but expected 'text/xml'.The request failed with the error message:Quote:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
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I have a regular application form with a WebBrowser control.I have strung together a .htm file (from a regular text file) which I then assign to the WebBrowser control. In the html file, I have filenames mentioned.I am trying to string together the html in such a way as to give a clickable link or button that will parse into html and open the corresponding file in another WebBrowser control in VB.I have tried using VBScript and JavaScript to put a button in the html.As long as the function or sub I call is also in the same html document, it works, but I really need to transfer the control back into visual basic where I can do the heavy lifting I need to.can I just not do this as a regular VB application? Any way to do it without adding the complication of requiring ActiveX?
View 3 RepliesI am trying to create an online forum inside of my application. Yes, I know I can make my own forum via PHP and then just use the browser object and link it back to the webpage, but my goal is to make an application that doesn't need to use a webpage (just a database, of course!)In PHP there are lines of code that will allow you to create a table and add the appropriate number of columns/rows needed to display the information in the same table (depending on how many elements are in the database).
So my question is: Can the VB.net application do a similar function? I've come up with a solution of just displaying information and either hiding/revealing objects depending on whether or not there is anything in the database to show. It's very messy and I'm desperately looking for another method.
Is there any way by adding to forums? ( like I click button1 & it goes to a new forum?)
View 17 RepliesTrying to make a call to another forum to chance some text boxes on it and update it. I had it working I thought but the values were not holding when I closed the box so I came up with this solution but Im getting null exceptions.[code]....
View 11 Repliesim trying to get a number/name from the user in 1 form and use that number again in a diffrent forum, but i'm having trouble.
*******************Form One
Dim strName As String '(general )
Private Sub cmdrun_Click()
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I have a sample app here I could use a hand with Basically I'm trying to update the TextBlock on the main page using MVVM when the content the frame updates the the property. Please find the code attached below:[URL]..How do i get the button inside the frame to change the variable and update the TextBlock on the parent control?
View 1 Repliesloop through a textbox control content and extract specific content from it
View 20 RepliesThis may sound really stupid but I have to ask cause I'm not finding this answer anywhere.I have an application where the user will need to sign up for a new user account on the website [URL]..However when I am using Firefox's plug-in Firebug to view html I am getting something totally different than when I just right click on the site and view the page source.
What I am trying to do is to get the captcha from the website and display it in a picturebox on the application so the user can view the captcha, solve the captcha and then the app post is back to the service for a response.
Here is the source that I am getting using Firefox's Firebug to inspect the element:
<td>
<input type="hidden" value="Oo3Jo1I8bgzK68agMqo3s79ZZib2OkbK" name="iden">
<img class="capimage" src="/captcha/Oo3Jo1I8bgzK68agMqo3s79ZZib2OkbK.png" alt="i wonder if these things even work">
</td>
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Why would the two be showing me two different versions of the HTML?
And how would you be able to grab that source to view in a picturebox using webclient?