Navigate To A Website And Download Html Then Parse Out Code To Only Display Input Elements?
Dec 13, 2011
I have tried a few things like converting HTML to XML and then using an XML navigator to get input elements but I get lost whenever I start this process.What I am trying to do is to navigate to a website which will be loaded using textbox1.text.Then download the html and parse out the input elements like . username, password, etc and place the element by type (id or name) into the richtextbox with the attribute beside the name.[code]Any clues or how to properly execute an HTML to XML conveter, reader, parser?
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Jan 6, 2009
I want to create a file upload client for uploading.com and I wanted to know if it is possible to make an application that lets you select a file from your hard drive, press an upload button and then the app will process it just like the website processes the file when you use a browser.Also I want the app to display the progress bar that the website displays when you upload, and when it's done, it has to get the URL for the uploaded file and display it in a textbox.Why not just use the website you ask? Well, I'm planning to make this into a bigger app but nothing will really work unless I get this to work first, so I have to start here.
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Dec 30, 2011
The info i need extracted is formatted:
<TD><A HREF="http://xxxxx.com/xxxxxx/index.html"><IMG SRC="../xxxxx/thumbnails/xxxxx.jpg"> </A></TD>
<TD>=== <B><A HREF="http://xxxxxxxxx.com/xxxxxxxx/index.html">LINE 0</A></B> ===<BR>
<FONT SIZE="2" COLOR="#400080">
[code]....
how do i extract the info between TD=== and /a and Line 1,2, and 3 and store it into a database from a live website?
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Apr 8, 2009
I`m making a program.I`d like to know how to make a code which will navigate to my website and find if there's a newer version of my launcher..I`ll search some codes now, If I find some interesting codes i`ll post here so u can upgrade or tell me how to correctly use them for my auto-update.I cannot publish my Launcher unless I`ve an Auto-Update in my Launcher.
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Nov 7, 2009
Here is the code I am playing around My problem is parse data from html table can;t display in my listview It always display in first column only.
[Code]...
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Feb 16, 2011
I am trying save a value from an input tag in some HTML source code. The tag looks like so:
<input name="user_status" value="3" />
I have the page source in a variable (pageSourceCode), and need to work out some regex to get the value (3 in this example). I have this so far: [Code] Which works fine most of the time, however this code is used to process source code from multiple sites (that use the same platform), and sometimes there are other attributes included in the input tag, or they are in a different order, eg:
<input class="someclass" type="hidden" value="3" name="user_status" />
I just dont understand regex enough to cope with these situations.
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Aug 3, 2009
I am new to VB and seeking to create a visual basic program which controls the display of several on-screen elements depending on a single value input by a user. The user can enter anyone of 2500 values and depending on the value entered, five different display elements on the screen will change color or text. The program's response to a given input value never changes, in other words if the user enters 279, the five different display items will always be the same. However, there is no real pattern to the display items that would allow for programming an anticipated response to the input value.
My thinking is to create a large and ponderous "lookup table" in visual basic - I am assuming this an be done but perhaps there is a different or better method. I plan on creating the lookup file in Excel but was assuming I'd need to export it to something that VB could easily read. Any suggestions on the best way to do this? Does the lookup table reside as a separate .txt files someplace or something like that? [Code]
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Jun 20, 2008
I want to get the links and images from an html code using the htmlDocument class available through webBrowser.So I retrieved and assigned the html code to the webBrowser trying each one of this 3
[Code]...
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Feb 15, 2012
How to parse HTML added by code behind using vb.net code ?[code]...
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Aug 20, 2009
I have a table that I'm creating in code behind with the final column containing a HTML checkbox with runat="server".
The code I'm using to do this is:
Do While reader.HasRows
Do While reader.Read
[code].....
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Aug 9, 2007
I want to catch the text from an html page.. you know that when you open any html page in the browser, you will see a text but with formatting.. because it's an html code having a lot of tags...
how to get the text from an html page and ignore all formatting and html code?
[Code]...
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May 5, 2012
I have a big problem with a software I'm creating for my own use.I have code in my software that downloads the source code of a webpage into a .txt file and filters out information it's looking for. For normal HTML code this works fine.The problem is when I can't target specific parameters in the HTML code because they're too vague.I can download this kind of unique HTML code and pass the variable (Brown in this case) to Strings in my software because it's on the same line of code making it unique:
<div class="Performer_DataLabel">Hair Color:</div> Brown</div>
However I want to know how to search a specific table and its rows and cells (like this one below showing the code for 1 row and the 2 cells I'm interested in):
1. <tr>
2. <td class="paramname">
3. <b>Hair Color:</b>
4. </td>
[code]....
The question (Hair Color), regardles of how many hundreds of lines the full source code is, is always on the same line within the row of the table (line 3).The answer is also always on the same line (line 6) in the row of the table.However the question rows themselves are not always on the in the same place of the table.
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Sep 17, 2010
I created a method and pass the element type, id, and any inner text that instantiates a new html element. The last statement: Me.Controls.Add(element) adds it to the end of the page, but I would like it to be inserted in a specific position (between 2 divs within a form). What I am describing is very similar to this post on SO here, although it was for javascript.
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Apr 10, 2009
I need to Download all the content i a HTML file using VB.NET is it possible?what all are the function can u gave me the code snippets??
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Feb 20, 2011
Code:
Public Function ScreenScrapeHtml(ByVal url As String) As String
Dim objRequest As WebRequest = System.Net.HttpWebRequest.Create(url)
[code]...
If it cant reach a URL it will give me this error:
Code:
Webexception was unhandeled:
Dim sr As New StreamReader(objRequest.GetResponse().GetResponseStream())
How I can add some error-handling to this code? Like if it cant reach a URL.
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Jan 1, 2010
I got a tips from a friend to use GetElementsByTagName(tagName) to this.
1. I don't know if it's the right for this
2. I don't know how to use it.
I need to get a name for a input in a html code, not the valuse of the input, the name!Here is the html source:
Code:
<td><input class="text" type="text" name="ebd435a" value="" maxlength="15" /> <span class="error"> </span></td>
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Nov 8, 2009
i am using System.Net.WebRequest.Create(url) to download html code, but it missed some data. if i use IE to view page and click "view source", all data will be showed.
my code:
Dim req As System.Net.WebRequest
Dim resp As System.Net.WebResponse
req = System.Net.WebRequest.Create(url)
resp = req.GetResponse()
[code]....
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Jun 6, 2009
i want to make a website builder which has the html code already written so all you have to do is check which boxes you want and click next or back to go through the process of making a website with specific code implemented in it.
P.s. im using VB 2008 express edition?
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Dec 2, 2011
I'd like to use the GeckoWebBrowser control to display HTML code that I type (or paste) into a TextBox. Here is the (nonworking) code I have:
GeckoWebBrowser1.Text = textBox1.Text()
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Mar 11, 2011
all I want is a function like this:
[URL] but then with the option to provide username & password. I have managed to do this with the webbrowser, first logging in then go to webpage and get source code but this takes much longer than just getting the source code...
Is there any way to do this? I found this:
[URL]
I tried with &username=...&password=... in the URL but it didn't work
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Apr 18, 2012
I've given a job to convert old data in table format to new format.Old dummy data is as follows:
<table>
<tr>
<td>Some text 1.</td>
[code].....
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Jun 8, 2010
tell me an efficient method of retrieving the CSS between tags on a page of markup in .NET?I've come up with a method which uses recursion, Split() and CompareTo() but is really long-winded, and I feel sure that there must be a far shorter (and more clever) method of doing the same.it is possible to have more than one element on a page, and that the element can be either or .
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May 9, 2011
how to parse and extract specific elements out of a JSON that I obtain from a web source. Using Visual Studio 2010 and VB. I can get the JSON but I haven't been able to find any examples or tutorials regarding parsing the data, locating specific elements and their associated data.
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Oct 1, 2009
I want to display only the number in this link, in a label visual basic 2008 this is the code i have, it works it just displays the whole link in the label.
Dim
theElementCollection As HtmlElementCollection = Me.WebBrowser1.Document.GetElementsByTagName("a")
For Each curElement As HtmlElement In theElementCollection
Dim ctrlID As String = curElement.GetAttribute("innerText").ToString
[code]....
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Jun 10, 2011
I am trying to parse incoming data from a serial port that appears to be XML format but an exception is thrown when I switch from a simulated setup to the real deal.My program runs great in a simulated setup but when I try it out on the real device I get: XmlException was unhandled Unexpected end of file has occurred. The following elements are not closed: li840 line 1, position 9.The li840 tag is my root tag and the position never seems to get past 40. I've tried using a try catch block but in my in both my simulated and real setups my values are blank but the program will run without exceptions. Should I take my received data and put it into a file and then read from the file? or is there something else I can do to make this work properly? [code]
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Mar 21, 2012
Pretty much the only thing I have changed is created a loop because I have one xmlstring and want to break it up and create tif files from it(which it actually does do).My problem is this: readbytes inside the while loop throws an exception at the last time through the loop that says I have an "unexpected end of file; the following elements are not closed" and lists them
[code]...
So there are tags left open after the readtofollowing("image"). I tried catching the exception to no avail, tried to read until eof, no avail. I dont really need elements to be closed, I just need to continue because I created files using whats in the image tag.EDIT: I think my xmlstring is going to have times where it will be too big to do a parse without slowing down too much.../parsing binary data?
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Feb 3, 2011
I am new to VB, and I am using Visual basic 2010 Express to make an application that will login and navigate a website for me. On a form, i made a button and a webbrowser, and this is the code i have so far:
Public Class Form1
Dim Automate As Boolean
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Automate = True
[Code]...
The last line of my code that nagivates to a new page after login... it executes before the login completes and the login fails. If i remove that line of code, the login works fine. So how do I navigate to further pages after the initial one, and make sure that it is fully loaded each time?
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Feb 14, 2011
I have an app that I am trying to navigate to a website and then get the element by <br>.
I'm thinking that I can get the element by using this code.
Dim allelements As System.Windows.Forms.HtmlElementCollection = WebBrowser1.Document.All
For Each webpageelement As HtmlElement In allelements
[Code]....
My issue is how can I take all those elements and add them to a rich text box on my app?
There is also about 3 pages that I am needing to navigate to and download the content on, is there a way to add to the list until the loop is finished?
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Mar 15, 2012
I am using WebBrowser Control...
When form is loading i set webbrowser to navigate a website.
Now this website running too much popup ads.. So each time webbrowser navigate a new popup window open out of my application.. Is their any way to stop that..
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Aug 21, 2010
Dim Buddymarks As New WebBrowser
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