Automate A Process In A Webbrowser Control?
Jan 4, 2010
I have been attempting to automate a process in a webbrowser control. When I attempt to fill out the form and submit, I get a false negative response (meaning all the data in the fields are correct but I am getting an incorrect response back from what I should be getting). I have determined that this problem is due to the fact that when I manually type out the data in the input fields a javascript is being fired. I know that you are able to invoke the javascript, but as I have no real knowledge about javascript and the script is rather complex I am stuck.
A temporary solution for me has been to use SendKeys, but this is no real solution at all. If the window loses focus, the entire process goes out the window. I cannot just use the .SetAttribute or .InnerText methods for the elements in the window.
I'm not sure if any of you are familiar with WatiN but I have used it recently while looking for other means to do what I need to do here. Watin works, but instead of allowing me to use an embedded browser object it shells new browser windows. Anyhow, with WatiN I am able to minimize or hide the browser window and the code will still execute. This leads me to believe that there is a way to simulate keypress events in a browser window while making sure that the specific element is the active element.
I have searched all over the internet for this (but am sure I overlooked a few things in frustration) and have yet to find a solution that works for me.
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Mar 9, 2010
I looked all over the forum posts here and didn't see the answer to a question concerning iframes within the webbrowser control (there were similar issues however). The forum has a classifieds section that allows members to post threads daily. I have a message that I like to send once every day to a forum and decided that it would be best to achieve this programmatically. However, I noticed in the visual basic 2008 webbrowser control, that it doesn't seem to automate the iFrames within the browser using the htmlelementcollection codes.
[Code]...
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Sep 4, 2009
I am trying to automate login and navigation to a website using the WebBrowser control. I can successfully logon to the site using the wb control but after that I can't seem to get access to the newly loaded document's elements within the same routine. I check for ReadyState Complete and IsBusy but they don't seem to be working. There don't appear to be any frames being used at all so I can't figure out why this won't work. I know that the wb control is successfully logging in because I can see the page load in the wb control. However, after the page loads I try to access the HTMLDocument for the new page (after logging in) and it is either set to Nothing or it's the previous page's HTML. I've tried putting in a Sleep to wait for the page to finish before trying to access the HTMLDocument on the new page but it still doesn't work. If I create a button on my form that accesses the HTMLDocument and click it it works fine. I can't figure out how to ensure that the entire page has finished loading within my routine. I tried putting a switch into the DocumentCompleted event but that doesn't work either.
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Jul 9, 2009
I'm developing an VB.NET application which utilizes a webbrowser control. The browser control needs to navigate to a simple page which prompts the user for their user name and password. However, this prompt is not simply a web form, but it is a completely new dialog window. I need a way to automate filling in the username and password in this dialog by using locally stored credentials, so that there is no interruption in the webbrowser control's navigation. The only information that I have been able find so far that might be useful in solving this problem, involves using windows hooks in the user32.dll to intercept and negotiate with these windows at a low level.
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Jan 2, 2010
Is there any software to automate the process of creating vb.net windows softwares or asp.net websites. As i am new i want it to be created automatically. Or can anyone create the project for me? I will give the details and upload the files (if Present). I got this thought when i asked the following question:
My boss has given me a task to create an asp.net website. The website should take some data through text fields, combobox, etc.. and then generate a report and graph. Before they used to store the information in an excel sheet and then generate a report and graph. He showed me the excel sheet and the reports and chart (in pdf). I don't know how to do it.
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Jul 2, 2009
I have a data bound DataGridView. The final column of this is for the last change date to see how new the data is. I also have a hidden label on my form that has the current system time and date. I am wondering how do I take the date that is on the label and insert it into the column for the last change date on the datagridview when ever a new row is added. This way it automates the process of putting the exact time that row was added.
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Mar 26, 2012
I'm writing a small business app in VB10 and I need to automate some things with the whole system.There's a website with an opendialog box (choose file) and I need my app (webbrowser) to click it and automatically choose 1 file to load.
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Jul 26, 2011
We are currently changing our Antivirus program which involves uninstalling our current one first. That isn't a problem but we have several laptop users not in the building who might have a problem uninstalling programs.
It should be possible to write a script/program to automate the uninstall process I guess, but don't know where to start. Can someone point me in the right direction?
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Jun 25, 2011
I am trying to use my web browser control to get retrieve date from a specific page, including all sub-page content. Problem is some of the sub-pages are on a separate domain and thus I am getting a permission deigned error when i try to access the frame [through document.windows.frames(i).document].Is there any work around to do this, even if I have to manually change security settings? I tried turning all my settings in IE to allow and still same error. I will only be running the app locally and no one will be browsing on IE so I can literally change anything needed to get this to work (even install older version of IE which may allow it but can still handle JS processing).
Note the reason I am using web browser is a great majority of data I will be accessing is JS generated, so I need to access the DOM after JS processed / generated the HTML. Because of this, simply using SOCKETS to get the HTML is really not an option. Even if I had the HTML, I still need some type of engine to process all of the DOM elements based off javascript.
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Jun 3, 2012
Using Webbrowser, I've managed to automate PDF downloads for several of the websites used by our company. I'm still a beginner at this process.Many of our PDF downloads, however, are from a Wells Fargo service called Wholesale Lockbox Image. The problem is that this Wells Fargo site expects the user to select items from a treeview as part of his query criteria. I don't know how to make Webbrowser select these treeview nodes programmatically.
Although I don't know anything about Java, the treeview is definitely a Java control. I know this for several reasons.(1) The instructions on the website specifically state that the the treeview won't draw until Java is installed.
(2) A standard Java splashcreen appears in the little treeview pane until the treeview actually begins to draw. The HTML code has an <OBJECT> tag which includes this attribute: ARCHIVE = "JWLTreeView2.jar"
Using Microsoft's mshtml library, I've tried looping through the elements on the page but can't find anything corresponding to the nodes in the treeview. I've also tried applying EnumChildWindows to the IE window, but here too I found nothing specific to the nodes. When I hover Spy++ over the treeview pane, it only identifies the pane as a whole, not the individual nodes.Furthermore, even when I select the nodes using my mouse, I don't seem to detect any corresponding alteration of the Webbrowser's HTML document (unless I overlooked it somehow).Does anyone have any suggestions on how to make Webbrowser select the treeview nodes programmatically?Oddly, I noticed that if the user saves the webbpage to his harddrive and then loads it into his browser from there, he can still see the treeview and select items (even without logging in to Wells Fargo), although if I bring the page home, the treeview is gone. I guess this means that IE is storing/caching the java file somewhere on the company machine, although I don't know if this fact would help solve my problem...
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Aug 15, 2009
I have seen several threads about automating several aspects of html elements (buttons, textboxes, checkboxes, radio buttons etc...) but I didn't see any specific codes to auto-click "Hyperlinks". How would I invoke a click on any hyperlink located on any given webpage if I needed to?
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Feb 2, 2009
I am trying to automate a process I do with a bank with vb.net. Basically I need to open a website and navigate through it (Automatically through the program obviously), enter a batch ID and enter a file path and name. For some reason when I get to the part where I need to enter the file name and path, it simply will not populate the text. I have attached a word document with screenshots and code. The only difference I can see, is that in the bank website's code the the input type for the file text is "FILE" rather than "TEXT" as it is for the batch id...
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Apr 11, 2009
How do I automate a web page (e.g. retrieve page text, login website, search, click button or hyperlink) via WebBrowser?
Please remember to mark the replies as answers if they help and unmark them if they provide no help.
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Jan 2, 2012
I am try to Develop a application that can control a PC using SMS with internet. also i turn on the PC power with a cell phone. but After i turn on the PC it will ask for username & password! I store this information on a local database (Eg:MS ACCESS). how can i get that username & password then log in to PC using a VB.NET Program?
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Aug 14, 2009
I am new to vb 2008, but I know how to automate some html elements. The issuse that I running into is that I cannot get my webbrowser1 to auto-click the "Gmail" button at the top left of the page or the "Show me my account" button on the righthand side of the webpage. Here is the webpage that I'm trying to auto click: url...Can someone please view the html source and give a code sample to click either button so that the page can then go on to the following page?
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Mar 10, 2010
I was just wondering how to get my vb 2008 form to either a)click iFrames button or link or b) enter text into the iframes textarea or textbox. I noticed that a lot of vBulletin forums have the iframe on their Textarea message box. I have a post that I like to do daily in the classified ads on futureproducers.com and was wondering how to get into the iframe so that I can automate a single post in their classifieds section.
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Apr 18, 2011
I use webbrowser as File Explorer.
If you click folder it opens new folder contents in WB window but if you click html document it opens in EXTERNAL viewer.
How do you get html document to open in WB while exploring ?
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Aug 10, 2010
I am writing a few web based apps which will require a webbrowser extension. I have already used the IE webbrowser control that uses the trident web rendering engine. I believe this is MSHTML.DLL? Anyway, some of the users of my programs have complained of a few things. Particularily,
1. It seems to be a slow browser, at least compared to other rendering engines out there (webkit and gecko are 2 known ones).
2. On the developer side, it seems to be low in features. The features are sufficient in most cases, but there are some "special" things that I need.
3. It has VERY low HTML (and especially HTML5) compliance.
My question is, how much work would it take to use a different engine (such as webkit .net, which I HAVE heard of) and be able to distribute it easily. Or, if you guys feel ambitious, we could try writing a brand new engine ourselves. I know how big of a job it is, and frankly, I have no clue where to begin. I would just like your thoughts and opinions on the matter.
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Mar 18, 2011
i have created an app to load an access database into a datagridview, which contains web urls. When button is clicked it webbrowser1 navigates to each url and each webpages document.inertext is put into textbox. This all work fine but after a while the webbrowser navigation becomes increasingly slower.
For Each RW As DataGridViewRow In Me.DataGridView1.SelectedRows
'''''''''''#######cell values into strings ########''''''''''''''
If RW.Selected = True Then
Dim domain As String
[code]....
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Jan 1, 2011
Ive tried to edit option on the webbrowser control, example javascript enable/disable. but found out that it uses IE's option and cannot be changed.So my question is: Is there a way to do a "webbrowser" without using the WEbbrowser control that is based on internetexplorer? If it is, can i change option example flash and so on?
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Jul 11, 2008
I am in the process of designing a computer control program to control a HF communications receiver (radio), and have found a problem with the Serial port. I am using VB Express Edition 2008. This module of the program is supposed to take an input string from another part of the program, format it, break it into 4 bytes, and send it to the radio in hex form via COM port 1. The problem comes in when you try to enter a frequency with an 8 or a 9 in it. The 8 or 9 is usually replaced by 45, ex.-input 9900, receiver tune 4545. The exact same thing happens with 8's, input 8800 and receiver tune 4545. All other numbers other than 8 or 9 work fine. The strange part of it is that sometimes the 8's and 9's work, and work correctly. For instance, 900, 1900, 2900, 3900, 4900, 5900, 6900, and 7900 all work correctly. This led me to believe that is may only be when the 8 or 9 is in the first position, but that is not the case, it also shows up in other positions as well. All other frequencies that do not have 8 or 9 in them also work. I ran into this same problem with VB Express 2005, and worked on it for weeks before giving up and going back to VB6.0. This same module (with exception of the port open command) runs flawlessly under VB6. I have even tried importing the MSCOMM control from VB6, but it gives the same results. In de-bugging mode, all of the inputs, decimal and hex seem to be correct, so the problem must come in after you click the command button, but before it leaves the COM port.
[Code]...
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Jul 30, 2010
I am automating a javascript web form submission process using webbrowser. I would like to use something without a UI but don't think httpresponse etc would do all that is needed. My code works but I think is not designed correctly. I think I should be breaking each step into its own sub or function. In its current state I think every time a page is refreshed/redrawn all the code is running which makes causes endless looping of clicking a link which is on its own destination page. What that means is click the link and the page refreshes with new information but does not navigate to a new page. So the code looks for the link and selects it over and over and over .... This I think needs to be subbed or done as a function instead.
Here's the code.
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'Part 1: Load elogging login page in Form_Load event
WebBrowser1.Navigate("[URL]")
[Code] .....
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Feb 20, 2010
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?
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Dec 8, 2009
I have a WebBrowser control that have a webpage loaded in it. On the webpage I have a textarea control, like this:
<textarea name="text" id="textarea_obj">
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Jun 4, 2009
I have written a windows service that is meant to launch a notepad when a specific action happens. The problem i have is that even though the service launches notepad, the actual notepad it self is NOT visible. I know that it has been launced because i can see the process in the task manager. By the way the process is listed as a SYSTEM process rather than a process under my user name (i believe that is because my process is a "LocalSystem" one).
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Apr 16, 2009
I have a webbrowser control, where I show images (bmp files, that the program creates), and I want to add some UserControls to setup the images (as showing layers, or choosing colors to display). Is easy to do appropiate UserControls on VB.NET, and I know almost nothing about HTML, so, I would like to add standard VB.NET UserControls near the images.
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May 21, 2009
I'm using an electronic signature pad for one of my applications. The pad has a Control Panel file which handles it's configuration (image display, etc). I would like to know if it is possible to open the pad's control panel from within VB.NET. I've tried using Process.Start() but can't get it to wok, and I'm not sure if it is a problem with what I'm typing in, or if Process.Start is not what I need to use here.
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Jan 21, 2009
When I use the following code with control or explorer nothing happens but it works with notepad and the like.
Code:
Private pw As New System.Security.SecureString
Dim cp As New Process
With cp.StartInfo
[code]....
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Mar 16, 2009
I'm looking for a way to process the text entered into a textbox, before the the focus is lost from the control. Or a way to pass a reference to the control to a function/sub when the control has lost focus. In Access I would be able to use the AfterUpdate event. I have tried the following events, but have not figured out how to get what I want from either of these events:
- TextChanged (tried to capture the Tab key, didn't work)
- Validating (when fired for Text1, the ActiveControl name is Text2 which is the next TextBox control)
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Jan 2, 2010
So I've got a button that adds a tab using the tabcontrol object.
TabControl1.TabPages.Add("Test")
How would I add a webbrowser to that since i dont know what the tab page # of it will be specifically?
Each tab will have the same components, but might goto a different url.
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