I have a VB.NET application and a timer that refreshes the webbrowser every 5 seconds on the application. Now it works 100% fine with Windows Vista. It also works fine on another computer that has Windows XP. But when i come to run this application on my server that has Windows XP installed the application will just not refresh. Is there anything that i can do to code it to FORCE refresh the browser every 5 seconds?
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Sometimes webbrowser goes to page not found and stops. Is there a way to do if it's page not found do refresh!
View 1 RepliesI'm making a webbrowser that automatically refreshes till a link changes, then it makes some procedures.
I know that refresh methods dont fire the documentcomplete event so what could be a solution for my situation?
I have a web site that I want to check for a html link modification, for that I need to refresh it every 30 seconds.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
WebBrowser.Navigate("www.google.com")
[Code]....
1) i have a WB control that is scraping a page... it worked fine for weeks. now today. it stopped? its not "seeing" things the same!?? makes NO sense?My wife has the same program running on her machine and hers still works... so I know the page did not change (i looked at the code)fyi.. lol... this is a facebook page scraper for farmville itemsso anyway...example its looping through the links..find the right links, checks this.. checks that...then gets to thisDim hClass As String = link.GetAttribute("classname").ToLower.ToStringnow it was gettting the class... now it just returns "passiveName" which is NOT the class?
View 2 Replies<a href="javascript:void(0)" onclick="travelTo(5);">Works on every other normal browser but not the WebBrowser in my program. Am I missing something?
View 4 RepliesPrivate Sub DataGridView1_CellClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellClick
If e.ColumnIndex <> 3 Then
Exit Sub
[code]....
I am using the CellClick event to update DB column PaidStatus from Paid to Un-Paid and vice-versa....Once updated i want the updated data to be reflected..i am using DataGridView1.Refresh()....but it does not show the updated data from the DB..i have to close the application and re launch it to see the changes.
I am writing an ap that monitors a website for changes. The website is for reserving campsites and I need to know when they change the date we can book a reservation. The date can change at midnight or any time during the day. It is completely random.I start the program launching a webbrowser with the URL. I have an inputboxbutton that prompts for the text to track for change. You paste the text in there and then the ap is supposed to wait for x minutes then refresh.I have a refresh button that works perfectly. Here is the code for it:
Private Sub Button_Refresh_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button_Refresh.Click
WebBrowser1.Refresh()
[code]....
I am a complete noob at programming, so I need all the help I can get with my new program.I am building a web-browser which is linked to one webpage. The content of this page is constantly changing, so I need the web-browser to auto-refresh after 2 minutes. But if it refreshes while NOT connected to the Internet, the browser will show an error message, so that is why I have build in an Internet check. This check is working. The browser also have to be in the same place at the screen every time the software is loaded. This code is also working.
But the timer and the refresh is bugging me. I cannot get it to work. The code is not responding.
[Code]...
I want to make a program in Visual Studio 2008 in Visual Basic. It involves a web browser and I want to make it auto refresh and allow people to choose the time period in which they want to auto refresh. It won't take user input but I have checkboxes that are preset. I think this may be possible using a timer and the WebBrowser1.Refresh() method. If I am mistaken, please correct me and tell me how to do this.
View 1 RepliesI am developing a google maps ap, and want to refresh the map with new detail on demand. The initial problem offcourse was that the webbrowser control does not reflect the changes (still keeps the original htmltext) and new document text and refresh. I understand the document text is set once, and cant be changed... apparently.
I have tried
navigate("about:blank")
document.stop
document.new(true)
doevents
All the collected user knowledge on this problem, only get me half way. I can get the page refreshed using some of the techniques above, but it then gives me a script error and an error 53, which both has no details or origins.. just blank errors.... after clicking through their error windows, my page refreshes.P.S. I don't know if my javascript events that are bound to the webbrowser control causes the errors. Some have suggested that the errors are due to the document loading without all its references being closed/open...
I'm working on a webcrawler in VB.net, and using the System.Forms.WebBrowser object for handling navigation on sites that use javascript or form posts, but I'm having a problem. When I navigate backwards (WebBrowser.GoBack()) to a page that was loaded with a form post, the page has expired and I have to do a refresh to resend the request. When I call a refresh (WebBrowser.Refresh()), a dialog box pops up to confirm. Is there a way I can get around this modal dialog in code?
View 3 RepliesI want to know how to autorefresh a vb2008 form having a webpage (cricket scorecard), form must refresh in 5 sec.
View 3 RepliesI have two webbrowser controls in my application, and I need them to refresh every so often, for example, every 5 minutes. How do I do that?
View 4 RepliesThere is PreviewKeyDown but I don't know how to prevent it from passing the keypress to the browser using that method & WebBrowserShortcutsEnabled will disable them but not allow other stuff like Control+C,Control+V and even the delete key in a textbox wont function as well as technically any F keys will not be passed to the flash I have running in the web browser control so the reason for disabling was made moot because the keys still aren't usable in the flash game either because they don't function at all anymore or it has an action already(F5-refresh)How do I disable it without stopping it from being used by the underlying webpage - flash in this example....
Return returns execution to it so it ends up calling keydown like normal, there is no actual keydown event for the webbrowser control or id use that....I cant block navigation because a refresh appears to not call any of the navigation stuff....End stops execution of the whole program it seems, not just stopping that part of code in its tracks...Stop just pauses the program in the debugger....Exit has the same result as return does....
Is there no way to either use PreviewKeyDown to not return execution to the caller....or maybe some kind of await procedure(visual Studio 2011 & its await procedures/async procedures) or something which will never finish... them using it a lot(the F5 key) wont use a lot of cpu while it waits for something that would never happen....Or just any other method which could make this work how I need it....
I am using Visual Studio 2010 and have been slowly getting into threading. My current project has a form with a button that in turn starts two threads. The form itself has two labels on it that are used to display the progress of the computations. Each thread has a delegate defined to change the value of the respective label (as the labels are not defined in the thread, but on the form itself). The threads call subs from a separate class. All of the calculations work flawlessly. My problem is that the labels do not visually update. Through use of message boxes at the end of each loop, I know that the label text property is, indeed, being changed, but it is not actually refreshing and updating on screen.
My delegate code is as follows (I grabbed this code off of another forum where people had the same issue - it seemed to work for them, but not for me):
Private Delegate Sub UpdatePMLabelTextDelegate(ByVal s As String)
Private Sub UpdatePMLabelText(ByVal s As String)
' Are we in the same thread as the label itself?
[Code].....
My program has multiple webbrowser objects, each one in a different tab. How would i go about setting up a button to refresh only the webbrowser on the active tab?
View 1 RepliesI have a VB.net form which has two webpages embedded. The webpages have a 5 second auto refresh built into the HTML header as the information is constantly changing.
The problem I have is when I pull up a secondary form, I lose focus to the 'Main' form everytime the webpage refreshes.
Is there any way to stop the webpages autorefreshing in the form and I will build in a refresh command into a timer I already have in place and then I can start and stop the refresh at will.
Unfortunatly I cannot amend the source code of the HTML as this is required for a different process elsewhere.
I am trying to search a page for certain links only, but can't seem to find a way to have it 'search' for a 'keyword' in the links, and only list those in a ListBox - What I have now works to grab ALL the links on the page, but I need to only find SPECIFIC ones:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles Button1.Click
[code].....
I am using <webbrowser>.Document.Window.Frames to get frames.My <WebBrowser> having 2 frames.My only problem is ,I seem one at index 0, but not 1.
HtmlWindow wf = wb.Document.Window.Frames[1];
string s = wf.Document.Body.OuterHtml;
and view source
<frameset rows="0,*" border="0" frameborder="0" framespacing="0">
<frame name="entrustTruePassAppletFrame" src="EntrustTruePassApplet.html" marginwidth="0" marginheight="0" scrolling="no" noresize>
<!-- It is mandatory for the frame where the user interaction happens to have the name defined in the Configuration as appletHtmlGuiTarget-->
<frame name="entrustTruePassGuiFrame" src="AuthenticateUserInputRoamingEPF.html"> </frameset>
Was updating a project and all of a sudden the auto-filling of a WebBrowserControl's Dropdownbox stopped working. Here is the HTML of the Input box:
[Code]....
I think it is the "onkeyup" thing that isn't getting fired properly so the dropdown list isn't updating itself... it was working fine before, and now, with no changes, it just stopped working. can someone take a look at my code and see if they spot anything? EDIT: attached an image of the dropdown box in question. as I type, it does the lookup. (using the onkeyup event). I am setting the value of the dropdown to the five digit code at run-time, trying to trigger the onkeyup event to get it to get the full line, but it won't work.
In the beginning, I wasn't able to run a flash game on my webbrowser in visual basic. I then found out that there was a setting I needed to change and then flash started to work again for me.I just sent the program to my friend and flash isn't working for him in his webbrowser. What do I do?and the setting i changed was
Tools-->Options-->Show all settings-->checked
Projects and Solutions-->General-->Show advanced build configurations-->checked-->OK
Build-->Configuration Manager-->Active solution platform-->New-->x86-->OK-->Closed
Basically, what I'm doing is navigating to a website with a backgroundworker.In the WebBrowser1_DocumentCompleted event, I put code to fill in a form and I set the value of a boolean called "formFinished" to true once the form has been finished and submitted. The problem I'm having is that it only posts data to the second website, no matter the order of the websites. I'm wondering how this is possible since I have a boolean in state which only gets set to true once the first form has been submitted. So I have no clue as to why it only submits the second one, but not the first one.
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I cannot get the messagebox to show up on my screen when the program checks the text fields on the webpage that says "this is the test".
Here its the code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If WebBrowser1.Document.Forms(0).InnerText = "this is the test" Then
MessageBox.Show("worked!")
End If
End Sub
How to make the messagebox to show up on the screen when the program checks the text fields on the webbrowser by on the webpage?
I have two web browser controls on my form. I also have several buttons like bold, underline, etc. My probem is the gotfocus of the web control is not working correctly. If I click on the web browser control to add text the gotfocus is not fired. If I click on a text box first and then click in the browser control it is fired. I need to know which has focused so the bold etc know which control to work on.
View 1 RepliesSo, I'm trying to make a spiffy little program that lets you search for flash games, and it will automatically display the flash game within the program. (by writing document text to a webbrowser control) Unfortunately, the site I use to get the games from uses iFrames from Custom Google Search to house the search results. I know how to deal with frames in a webbrowser (WebBrowser1.document.window.frames("frame name here").document.so on and so forth), however it seems as though iFrames are different. When I try
WebBrowser1.document.window.frames("googleSearchFrame")
, it doesn't recognize that it's there. Same thing if I replace the name with the index of the frame - it's not there. Using
[code].....
I have a pretty good understanding of VB.NET. Basically I'm trying to fill in the password to login to a school website, but for some reason it won't fill the value in. The closest that I've come is getting the password to appear on screen, but it's not masked with asterisks and when I click login it says invalid password. It's almost as if it edits the label right before the text box for the password.
Here's a section of the html code from the login page:
HTML
<FORM ACTION="/pls/PROD/twbkwbis.P_ValLogin" METHOD="POST" NAME="loginform" AUTOCOMPLETE="OFF">
<TABLE CLASS="dataentrytable" SUMMARY="This data entry table is used to format the user login fields">
<TR>
<TD CLASS="delabel" scope="row" ><LABEL for=UserID><SPAN class=fieldlabeltext>UID:</SPAN></LABEL></TD>
[Code] .....
The textbox that has the NAME="PIN" is the value I wish to change. Here is some of the code that I have tried where webMain is a WebBrowser VB.NET control. This doesn't work, but does display the unmasked password:
Dim passwordTextBox As HtmlElement = webMain.Document.GetElementById("PIN")
passwordTextBox.InnerText = txtWingsPIN.Text
The webpage [URL]
if i webbrowser1.navigate "[URL]" when this page was loaded then automatically navigate to [URL] i try webbrowser document completed event but still not working
View 4 RepliesI need your help. I cannot get the messagebox to show up on my screen when the program checks the text fields on the webpage that says "this is the test".[code]...
View 1 RepliesI am writing a program which allows me to log in to my favorite forum, and displays me my fav. threads, and automatically refreshes current thread every 30 seconds or so.For this, I first need to login to the forum page. Fortunately, the forum allows to login during posting a new message, and it's a public forum so browsing threads is possible without login. Therefore I can directly jump to the "edit article" page without login, fill in login information and write the post, and then send it altogether. Here is an example link for that:
[URL]
Here comes my problem. I have searched for autofilling values and my code is like this:
Dim mydoc As HtmlDocument = sender.Document
Dim mynickname As HtmlElementCollection = mydoc.Forms("f").GetElementsByTagName("input").GetElementsByName("nickname")
Dim mypass As HtmlElementCollection = mydoc.Forms("f").GetElementsByTagName("input").GetElementsByName("pass")
If mypass.Count > 0 Then
[code]....
I guess it doesn't set the value attribute, at least during debugging the 'outerHTML' property stays like this:
"<INPUT class=form_input type=password value="" name=pass>"
I tried to use below command to clear cache :
System.Diagnostics.Process.Start("rundll32.exe", "InetCpl.cpl,ClearMyTracksByProcess 4351")
But after I start again navigate username still is there (website is keeping login for 15 minutes), I tried to dispose webbrowser but I can't find control to start it up.Webbrowser is invisible... how I can restart/reboot/clear cache on webbrowser ?
