VS 2010 "Out Of Memory" Error In Webbrowser Control
Mar 1, 2012
I was running VS2008 express and WinXP and everything was working great. I'm now running VS2010 Express and Win7 x64
My issue is that I am running a webbrowser control that is loading a page with scripts and I get a "Out of memory at line xxxx" and the page wont finish. I've tried it on XP and it works fine so it is a Win7 issue. I call it by the standard, wb.navigate("link.com") and it errors out. If I do a "process.start("link.com") it opens a new window and works great. If I open IE or firefox standalone, everything works great. It has something to do with my webbrowser so my question is how/why is the webbrowser different than the standard IE webbrowser?
I would try to load a new IE window, but I don't know how to pull and push data to a webbrowser outside of my app. My app does form manipulation in website to streamline manual processes for filling forms out.
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Dec 16, 2011
I have a simple app that has a listbox of URL's.I loop through these url's and display them in a webbrowser control.Ive noticed that on each page load the memory usage goes up from 5-10 megs, and will no go down. Ive researched a TON of solutions online and none seem to help at all.Do any of the pro's here know how to fix this memory issue in a webbrowser control?
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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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Oct 4, 2005
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:
[Code]....
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Apr 13, 2010
An application that has 3 Webbrowsers instantiated at design time navigates to webbrowser2 15 times every minute with a different webpage. Webbrowser2 is disposed of after each web page is received and processed. The size of the private application memory continues to grow as when the disposal was not instigated. The application memory grows to 1GB and then the program stops responding. Any suggestions? [Code]
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Sep 15, 2009
I'm searching for a solution to resize image(jpg) being passed in from an array in Picturebox Control on .NETCF 2.0 in VB.NET without resorting to using the opennetcf library, is it possible?
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Mar 29, 2011
is this possible to do in memory (so i can get rid of any disk IO)?:
If File.Exists("c:MyImage.png") Then
File.Delete("c:MyImage.png")
End If
[Code]....
This above code works great the first time then errors out on any successive attempts after that with the file being used by another process at the File.Delete line. The image is being generated for use as a mail attachment and i've only ever done it via a phyical file on the disk.
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Mar 23, 2010
I'm running a webbrowser control with a custom user agent.When I try to load google with it, there are a number of 'script errors' in the website, which I've hidden by setting 'Scripterrorssupressed' to true. Now however there is still an 'object error' which pops up when i try to load google.Every other website that I've tried loads fine, and when I click 'ok' google runs fine. I'm quite sure its something to do with google 'location services' trying to locate my browser, because it thinks its a cellphone (due to the custom user agent).I've been trying DESPERATELY to fix these errors for DAYS! Is there any way I can just totally hide any popups - hence hiding this? Just any way to hide or stop the errors!
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Mar 25, 2011
I'm gettiing this error from my app: "Attempted to read or write protected memory. This is often an indication that other memory is corrupt." But it carries on for about 5 minutes then stops. The application log shows this:
[Code]...
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Dec 28, 2009
Getting the html source from my webbrowser control. I'm trying to get the source in the DocumentCompleted event of the webbrowser. The code i'm using is this[code]...
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Jan 23, 2010
I am developing an Outlook 2007 VSTO application that works with a commercial website.Almost all of the app's interactions with the website are done using HttpRequest objects.One user scenario does require the app to open a browser to a specific page on the site, and that page requires a Post string to provide the results of a form submit.I am using the version of the WebBrowser control that ships with VS 2008, and specifically VB.Net.My code successfully goes to the first page, after which it navigates to the actual target page (once the first page is loaded).That works, too, but if I click on the desired link on the target page, a JavaScript error pops up, stating "'j.parentNode' is not an object", with a Code of 0.I do not have access t the commerical site's internals. The page and links in question, when accessed via IE or Firefox, work correctly without the JavaScript error. The page containing the link is using Flex.Is this a problem with the nWebBrowser control?
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Jan 11, 2012
The follow code can be called about 6K times on the server it is run on then gets a out of memory error in the last catch statement. I don't see what is wrong with the code, it works well up until the out of memory..
Public Function AddUserToGroup(ByVal sSamAccountName As String, ByVal sGroupName As String) As Boolean
Try
Dim returnStatus As Boolean = True[code]......
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Dec 17, 2009
I am navigating to a web page with my webbrowser control
[Code]...
and this works on most pages. Now I'm going to a page that I guess there are errors in the page and I get a box asking me if I want to debut in IE's built in script debugger or something to that effect. Is there any way to have the system ignore this message and continue to load the page as normal
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Oct 21, 2009
If I use IE I can visit the website I want and click the 'Next' button and life is good. If I open that same website using the webBrowser control and click the 'Next button I get a javascript error message.I'm not doing anything in the code to manipulate the website. My goal, eventually, is to have some level of automation; but at this point, I get the javascript error and a pop-up and it screws everything else.
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Feb 2, 2012
I have the problem that alot of people have when using a webbrowser control, where it will no release memory...How do i communicate with IE window that is already open outside of my app?
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Dec 6, 2011
I cannot tell you how disappointed I am in the vb.net Web Browser Control. It really seems very ill thought out and rushed.So; to my question! I have searched all over the place in an attempt to find the answer to this and from what I can see alot of individuals are suggesting that it is better to use the old web browser control from VB6. However, i'd like to try to avoid this.
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Mar 12, 2011
I made a simple application for a website, the site has a IRC-chat and the program should let you close the window (or actually minimize it to the system tray), and then open it from the tray.the problem that occurs, is that I keep getting a Script Error from IE:url...the weird part is that this does not happen when using Internet Explorer on it's own.so it only happens within the WebBrowser Control in the application I made.the application, also, couldn't be more simple, it had just a single window with only a webbrowser control that loads url..., further the program only has a Notification Icon and a Contextual MenuStrip for the Notification Icon.
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Aug 9, 2007
I made a web browser using the Visual Basic Language. I am having a problem with the WebBrowser Control.If I go to a website that runs scripts (i.e.; sports.yahoo.com), a message comes up:"An error has occured on this script page", Do you want to continue running Scripts on this page "yes, no". If you click yes or no, the same message appears for 8 more times. Is there anycode I can use to disable the "Script Error Message" from appearing in the WebBrowser Control.
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Oct 14, 2010
I have some questions about the Windows.Forms.WebBrowser control.I have added this control to my project to be able to browse websites internally.First problem is that when I come into a webpage that contains JavaScript to open a new window, the control opens a new instance of iexplore.exe, tries to load the page in which the java script popup code initiated, but then prompts for authentication for a second time.Basically, I have to sign into one page to get to a listing of applications.I click on the application which in turn is just a URL to another page.The URL to the other page contains java script to open a new window.The new window opens in an iexplore.exe process, but re-directs me to the original sign in window instead of taking me to the correct site.If I do a msgbox on the cookie that is currently loaded, it displays my authentication information.How do I tell the new iexplore.exe processes to use the cookie that was stored in the webbrowser control?
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Nov 3, 2010
im using a WebBrowser control to auto fill a form in a page... i can access some properties of the <INPUT> html object, but when i try to set the Value property of this object VB fails and send me an error... i tried the SAME CODE in VB 6 and functions perfectly..Im using VB NET EXPRESS 2010
Private Sub Form1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Click
Dim Obj As Object
For Each Obj In Web.Document.All
[code].....
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Jul 2, 2011
Is it possible to control a openfiledialog which opens in the webbrowser ( example: [URL]) i want to automaticly fill in the filelocation and than click 'Open'
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Nov 29, 2010
Got To Webpage without using webbrowser control?If so, how would i read / get the html of this page? I can do this now with a webbrowser control, but just looking for a quicker way.I've seen this online below.
Imports System
Imports System.IO
Imports System.Net
[code].....
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May 5, 2011
I created a function to check if my webbrowser control is completed loading, however, it dosent seem to "wait" until its webbrowser is done loading the page.
While WebBrowser1.ReadyState <> WebBrowserReadyState.Complete
Application.DoEvents()
End While
I want to check if 2 or even 3 browsers are completely done loading, so i even had something like this.
While WebBrowser1.ReadyState <> WebBrowserReadyState.Complete or WebBrowser2.ReadyState <> WebBrowserReadyState.Complete or WebBrowser3.ReadyState <> WebBrowserReadyState.Complete
Application.DoEvents()
End While
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Jul 10, 2010
I have my app which is an internet browser using the webbroswer control, But if you click on a link in the webbrowser that is an Open in new window link then it starts IE and i know the webbrowser control is basically IE but how can I stop this an make it go to the url in my webbrowser?
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Dec 21, 2010
I am trying to loop through the class atributes on any a href on the html page, and then click the link if it matches a class type, but nothing seems to click.Here is what i have.
Dim links As HtmlElementCollection = WebBrowser1.Document.GetElementsByTagName("a")
For Each link As HtmlElement In links
If link.GetAttribute("class") = "mlm
[code].....
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May 2, 2011
I am passing a function a parameter of browser_id, when i try to add it to my function, it throws an error
WebBrowser + browser_id + .Document.....
I dont know how to make it gerneric...
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Nov 16, 2010
I did a search in google, through my webbrowser control, and wanted to search the html of the google search results..
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Dec 9, 2010
I am using a webbrowser control in my form, and i have simple php pages that does a post back to itself to get some data, the php page is on my server, and navigated to by the webbrowser control.This process sometimes can take 5-30 minutes.Ive noticed for some people waiting 25 min. the browser will come back with "page has timed out"..i can try it on my machine and it works fine..Its worked find in a XP - IE8 and WIN7 IE8 and Chrome machine.Ive seen it not work on XP IE8, and Vista IE8..Actually take that back, it wont work now on my WIN7 X64 after about 5 min.If i bring back the query quick, it works, its just the longs runs..
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Feb 4, 2011
So, 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].....
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Jul 23, 2011
I have a code in website:
<h1 class="mf_dI mf_Hblack mf_vmi">
Blabla</h1>
How to get this "Blabla" to my application?Dim rx As New Regex("(?<=<h1 class=""" & Regex.Escape("mf_dI mf_Hblack mf_vmi") & """>).+?(<=</h1>") MsgBox("Name: " & rx.Match(WebBrowser1.DocumentText).Value)
but it don't works.
And. How to get picture from website to picturebox if this picture is in the table like <table style="background:url('/blabla.png') no-repeat"> ??
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