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
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?
I am writing code to automate internet explorer. I have successfully done it for a few sites, essentially I need to be able to access the html, and elements such as input boxes to automatically fill out forms, and pull back the results. But for the current project the website has a framset and frames, I was wondering if there is a way to get access to the html and elements within the frame.
I am using Interop.SHDocVw to control internet explorer. I have been trying some code similar to the following, but after I get the frame I need and the documentElement off of it, I can't get the actual html inside the frame. I can get the outer page/framset html, but whenever I try to get inside the frame is comes up as Nothing. I was thinking it may have to do with IE frame security
I'm trying to get the HTML from a frame in a website which is loaded into a WebBrowser in my application.
I have this WebBrowser so that the user can login easily by putting the username and password on the login form of the page so that i can get the HTML code from the protected page.
However, i have to read the frame code while the WebBrowser being on the main page because if i enter the frame, it redirects me to the main page again so there is no way of reading the frame code by entering it.
So i don't know how to read the frame HTML code of a website[url]...
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.
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?
Using MS Visual Studio 2010 Express, when trying to debug, the build finishes and the following error below appears. It doesn't seem to effect the running of the program.
The error is:
An exception was encountered while constructing the content of this frame. This information is also logged by running the application with the /log parameter on the command line, which stores results in "C:Documents and SettingsCorkyApplication DataMicrosoftVBExpress10.0ActivityLog.xml".
Exception details:
System.Runtime.InteropServices.COMException (0x80040154): Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))[code].....
I can't find the "ActivityLog.xml" file the message references.
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.
I 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 ]*(</)
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?
i 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.
WebBrowser 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:
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 [Code] .....
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...
How to change the frame rate in Visual Basic 2008 Media Player? I have error: System.NullReferenceException was unhandled Message: Object reference not set to an instance of an object. IS there any way to fix this? Here's My Code
I thought I could use this, to loop through all checkboxes in a frame: For Each cb As CheckBox In Me.frameSearch.Controls cb.enabled = False Next But it walks through once, then it comes with error: Unable to cast object of type 'System.Windows.Forms.Label' to type 'System.Windows.Forms.CheckBox'.
There are indeed labels within 'frameSearch', but I thought that the "For Each cb as Checkbox" would loop only through all checkboxes..? Following does work, but it seems a bit of waste of CPU time, since it will loop through all controls!
For Each cb As Control In Me.frameSearch.Controls If TypeOf (cb) Is CheckBox Then cb.Enabled = False End If Next How to do this more effectively?
on installing a application which was packaged through inno setup on a windows xp machine X84 i am getting error as .net intialization error
what i made was while on try i had uninstalled the .net framework 2.0,3.0 and 3.5 and 4.0 and reinstalled frame work 3.5 and 4.0 + restarted the system and also i have tried to repair the frame work installation but no good results
I want to make a frame transparent, but not my forms only but of the whole system, for eg when I click on enable all frame and caption area must change to transparent?
Is there a way to see if a particular frame within the webbrowser control is finished loading? I know the functions webbrowser1.isbusyandebbrowser1.readystate=readystate_complete work for the main window, but it does not work when a frame is loading. It simply keeps saying the page is done loading. The event webbrowser1_documentcompleted sort of works, it registers when my frame has loaded, but it also registers when all the other frames are loaded. Is there a way to just check on the status of one particular frame.
I'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">
