Multiple Webbrowser Navigation Freeze?
Oct 23, 2010
I have problem with multiple webbrowsers on form so i created simple form with 10 browsers in it and 1 button:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
WebBrowser1.Navigate("http://social.msdn.microsoft.com/Forums/en-US/vbgeneral
[Code]....
When I click button and try to drag form1 everything is none or slow responding.
I see web site loading in browsers but nothing is responding on screen until loading of pages is finished. In the meantime my processor it goes to 90-100%
I tested exe on my laptop and is working same.
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Oct 24, 2010
I have problem with multiple webbrowsers on form so i created simple form with 10 browsers in it and 1 button: Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]...
When I click button and try to drag form1 everything is none or slow responding.I see web site loading in browsers but nothing is responding on screen until loading of pages is finished. In the meantime my processor it goes to 90-100%I tested exe on my laptop and is working same.
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Jun 18, 2009
i have a webbrowser control using it i navigate the webpage and also using vb.net form button i gave autofill value to the webpage text box.it also works fine and it opens new webpage
but i cant give now values to the new webpage textbox which is in same webbrowser control .please help me sir
i need to give value to that new webpage textbox value by using vb.net form button event
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Nov 16, 2010
Ok, I have some slight skills with VB but I am still a slight N00b when it comes to more advanced programing, I am currently working on a tabbed WebBrowser My tabs open just file and the new browser window also works but my navigation buttons do not I need some code that will transfer the buttons effect to the opend tab Ex. right now if I click "Back" it sends the first webbrowser back I want it to send the browser in the opened tab back insted.
[Code]...
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Jun 19, 2012
How can I wait till webbrowser loaded the page? I tried:
webbrowser1.navigate(url)
msgbox("done")
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Oct 1, 2009
Webbrowser Navigation successive url [vb2008]
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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 4, 2010
I am getting a "null reference exception" error when I run my application, this error occurs even before the webbrowser has navigated anywhere. Why would I get this error without a webbrowser document complete occurring?
vb
Dim HTML As String = WebBrowser2.Document.Body.InnerHtml.ToString
If HTML.Contains("Submit Comment") Then EnterData() Else NextURL()
End If
I don't understand why I would get this error when I haven't even navigated anywhere? Forgot to say that this code is inside WebBrowser2 document_complete.
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Nov 22, 2010
I have created an application that has a webbrowser, two radioButtons, button1, and a menustrip.The menustrip has two main heading and under each heading are about 15 Tool Strip MenuItem. The ToolStripMenuItem properties are set to CheckonClick and an example of forum1. vb code for this section of the application is:[code]What I need is for the user to be able to add his/her own ToolStripMenueItems to those already present, along with the base url.So that clicking Button1 sends them to the base url And also have the Radio Buttons automatically add the extensions to the base url when the RadioButton is clicked.They need to be able to do this from the application itself.But I'm not sure how to code this in.They will not have VB to make modifications.
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Sep 7, 2009
I'm try to make a multiple form as like as navigation form. There are several form(MainForm, Form1,Form2,....and Next Form)in the MainForm i'm put a "ADD" button, when i click on the add button Form1 is show up. On the Form1 there are 3 button (Back,Next,and Cancel) when i'm click Next Button on the Form1 then Form2 is show up and the same way to next button / back button
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Dec 17, 2009
I am making an application that uses multiple WebBrowser controls, and multiple proxies.The code for changing the proxy settings are as such:
#Region "Proxy"
Public Structure Struct_INTERNET_PROXY_INFO
Public dwAccessType As Integer
Public proxy As IntPtr
[code]....
Note: getRandomProxy gets a random proxy from a list.Problem is that whenever RefreshIESettings(getRandomProxy()) is applied, the proxy will be applied to all of the WebBrowsers, while i would need to have a unique proxy for each WebBrowser. Not having this would just error out the page in the other browsers and so on.
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Jan 19, 2012
I'm using loop to read data from sql and then make some calculations then save it again to another table but when application loop for 3 or 4 times it's freeze but the job is done but if loop = 10 or more then it is freeze and hangup for long time .i need to learn how to make my application working better and never freeze and make application working with any count for loop without freeze .
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Dec 6, 2011
Even after numerous attempts, im unable to set different sessions for multiple webbrowsers (in tabs ) hosted on the same windows form.
So far, i have tried the following methods (and failed)Created a new form for each session (The WebBrowsers share the session)Used HttpWebRequest,HttpWebResponse to get and set separate sessions for each webbrowser ( Couldn't implement this properly)Could someone please point me out to a proper channel on how to implement this ?
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Nov 21, 2009
i m making a WebBrowser and i have no idea how to make multiple tabls like in firefox/internet explorer/others IF this is already answered then sory.
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Jan 1, 2011
I need to make 3 webbrowser (using the default webbrowser control) in my application, but I need them to use separate cookies. I want them to run independently. (ex : I put 3 webbrowser in my application, if I log in a site with a webbrowser, I'll be logged in the 3 webbrowser. I want that only one webbrowser will be logged in, not 3.)
I already found some site about it [URL]
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May 16, 2011
I have an app that is needs to access multiple web sites and sign up for accounts. I don't want to run them one by one as this would be slow as christmas so I figured that I could setup some sort of background worker and put each process on it's own thread that way the app could run each sign up page at the same time. Would using background worker be the "BEST" option to use for this type of application requirement?
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Oct 14, 2009
I have this code for some custom events in a webbrowser I'm making. The events are meant to be for when the user carries out certain actions, here are the actions:
Mouse Enters a link (HTMLElement)
Mouse Exits a link (HTMLElement)
Mouse Clicks a link (HTMLElement)
[code]....
Here is my problem: I have the event handler with the same name for both my Picture event and my Link events. How can I change my code so that the same function is carried out as I want, but the names for each of the events are different?Here is the error which I am yielding:Error3'Private Sub onmouseenter(sender As Object, e As System.EventArgs)' has multiple definitions with identical signatures.C:\Users\Josh The Great\Documents\Visual Studio 2008\Projects\Net Browser\Net Browser\Forms\Form1.vb216417Net Browser
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Jan 31, 2011
I'm trying to run a specific test on my server using a program that can run multiple requests (using Webbrowser control) at the same time but with different proxy settings.What I am using now is working but only for one webbrowser control, im seeking advice for how to run multiple side-by-side.
<Runtime.InteropServices.DllImport("wininet.dll", SetLastError:=True)> _
Private Shared Function InternetSetOption(ByVal hInternet As IntPtr, ByVal dwOption As Integer, ByVal lpBuffer As IntPtr, ByVal lpdwBufferLength As Integer) As Boolean
[code].....
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Feb 27, 2010
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?
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Feb 12, 2012
I'm working on some application that can multiple login to one website right now I'm using webbrowser to login but can only for 1 account how to make it can multiple login? Can I use webbrowser to make it or have to use another method?
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May 1, 2012
I am venturing into WPF - first time in (VB).NET - and trying to re-create a project I started in MS Access VBA. It basically scrapes a series of pages within a web application. As you may have surmised I am having trouble with the LoadCompleted event.I have searched and found some information on it, but the "flow" of the code only lends itself to waiting for one page to load.url...All of the code execution is run in the DocumentLoaded event which works fine when you just need to navigate to one page and execute code. But I need to perform a series of these cycles for my application. How can I reliably wait for the document to fully load while still keeping the code execution in the same Sub AND not locking the UI thread? [code]That's it. Repeat for n times. my interactions with each DOM are significantly different.
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Feb 14, 2010
Here's the situation: I need to navigate to a list of sites and retrieve data from them; I know how to retrieve the data, but I'm unsure of the best way to navigate to each of these sites.
[Code]...
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Jan 7, 2011
I need to click an image in a webbrowser from a Windows Form in VS 2010.I can click ordinary links using code such as this one:
Private Sub Button14_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button14.Click
Dim lnk As HtmlElement
For Each lnk In Form2.WebBrowser1.Document.Links
If lnk.InnerText = "the_text_of_the_link" Then
[code]....
When it comes to the second variation of the code I often get the following error message (exception):NullReferenceException was unhandled Object reference not set to an instance of an object.
Basically - how do I tell it to click on it only if there are two separate and unique strings of html code in a html tag?
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Mar 27, 2011
I have a dgv, I populate it, and I insert a row at the pos 0. And I want to freeze this row even when the user sorts the dgv.
How can I make this? The frozen property alone seems to be not enough.
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Dec 22, 2008
Currently I have to retrieve over 2000 records from DB and bind with combobox. and then follow with another 3 retrieving (less than 20 records)
My problem is when I call this function, my GUI became freeze.
I try to use Application.DoEvents() method but it still didn't work.I read some post and pages, they mention about BackGroundWorker and .Net 2.0. But what i use it MS 2003 with 1.1 so i think i can't access BackGroundWorker.
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Jun 14, 2011
I am attempting to freeze the top pane of an excel spreadsheet, which I have opened via my application. The most used method from various internet sources is: [code]
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Feb 18, 2010
ok i have this code for a banner changer i wrote for an app but i have an issue the code works it gets the banner url from the mysql database useing this code[CODE]......
so im at at loss how do i get it to work so the GUI is still useable while it gets the banner ?
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Dec 14, 2009
Using DataGridView with VB.Net 2008.I would like to freeze the left column so that when/if scrolled this column still remains in place.
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Oct 15, 2011
I use these codes to download/upload to my FTP host , they work perfectly but since i have to handles few download/upload , sometimes the application freeze during download
'Upload :
Try
' set up request...
Dim clsRequest As System.Net.FtpWebRequest = _
[Code].....
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Jan 14, 2010
Is it possible to freeze a remote computer? thru the ip address.
freeze computer meaning temporarily disable the mouse and keyboard of that remote computer
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