I understand in previous versions of VB the webbrowser object had a beforenavigate2 event that provided access to the postdata of the webbrowser. I've searched and searched and I think that event was disabled for visual studio 2010.
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In Visual Basic 6.0, i used to get PostData and Headers in the BeforeNavigate2 event handler function. But when i upgrade to Visual Studio 2005, i got it upgraded to Navigating event handler and there is no PostData and Headers in the handler function. How to access PostData and Headers value in the Navigating function.
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I have a program which opens up a webpage through a WebBrowser object in c#, and does a bunch of operations with it. Now I need to integrate this functionality into my own webpage.
That means that either I need to take the c# code, and somehow make it work in my webpage itself (put in a WebBrowser object, set up event handlers, etc), or I need to somehow have my webpage open this program on my server, fire an event to start, and receive input from it. It is very important for me to use a WebBrowser object (or even WebKit.Net) because there is a lot of javascript, etc on the page that needs to be processed.
I am trying to fill form located here [URL] using web browser control in MS Visual Basic 2008.
View 1 RepliesI'm reading a string from a text file, and want to use that string as the URL for my web browser object. The error I get is it needs to be URI, but I am completely lost on how to make a string into URI.
View 3 RepliesIs there a collection or property somewhere to determine the certificate properties that is in used with the current browser?
If I right-click on the browser object on the VB form, I can see the properties and see the certificates, etc. But is there a way to programatically get to that point? Not seeing anything clearly marked. Not sure if it isn't exposed or if I'm just not seeing it.
So I am currently using the method of combining a timer with a WebBrowser control to constantly check if some particular text has appeared in the WebBrowser control on my form. The text is dynamically generated after some arbitrary amount of time depending on the user's internet connection speed. (I'm using DOM to do this). The code to check for the HtmlElements lies within a function, which is turned called by the timer.
I find that this is kind of crappy and occasionally lags the UI interface, if not making the entire program behave sluggishly. I have been thinking of just using a simple while loop in a worker thread to take care of the issue, but I understand that new threads cannot interact with the UI thread directly (including controls); they have to call wrappers that are present within the UI thread.
So my question is, can you declare a WebBrowser control and still interact with its HTMLDocument properties if you declare it within a worker thread? I don't want the while loop to be executed within the UI thread (by using a wrapper), since that would defeat the purpose. I would also like to avoid DoEvents() as much as possible...unless that's the only way to do this thing?
I'm trying to create a windows service that loads a website, navigates it, and pulls some information using javascript. This is all very easy to do in a windows forms application, but isn't working in a webservice (apparently because services can't access the registry WinInet Not Supported for Use in Services). Any ideas how to get it to work? Here's my code that outputs nothing:
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EDIT: I need a WebBrowser or WebKit.Net object because I need to execute javascript on the page, and I need to maintain a login (using cookies and post data). If there's another method to do this please let me know.
is there a way to copy selected text out of a WebBrowser object? I tried:
Webbrowser.Select()
Clipboard.SetDataObject(Webbrowser)
I am currently trying to get a WebBrowser object not to download flash and images. This is just to make a lightweight browser. I know this can be done within the IE settings, but i would prefer it on an application level.
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
WebBrowser1.Navigate(New Uri("http:google.co.uk"))
End Sub
End Class
I have found some C# code, but i dont know how to change it to VB.Net and the convertors make some bugs, which i do not know how to fix
Software i am using:
Windows XP SP3
Microsoft Visual Studio 2005
getting the webbrowser to stop downloading them?
How I do set the webbrowser object to check the link address I have clicked and if the link is within the host I approved?
View 2 RepliesI'm currently thinking up a program I can sneak onto my computer at work, and it all hinges on one key question...Does the WebBrowser Object inherit any local restrictions? EG, If Facebook is blocked on IE/Chrome would it be blocked on the WebBrowser Object?
View 2 RepliesI am using this code to automate tasks. I got this code from this link which is by Xiaoyun Li - MSFT.
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
' Part 1: Use WebBrowser control to load web page[code].....
The following is the source code of the Page Actions link in the website. How do i indiacate this in the code so that i can click it automatically?
<a role="button" href="javascript:;" title="Create a child page or peer page, print the page, move the page, or download the page as an HTML file." tabindex="-1">Page Actions</span></a>
The following is the source code of the Download Page link, which is in a drop down menu when clicked Page Actions Button. I can succesfully click this Download Page link, but only when its Parent button(Page Actions) is clicked.make it 100% automated.
<td class="dijitReset dijitMenuItemLabel" colspan="2" dojoattachpoint="containerNode" id="dijit_MenuItem_20_text">Download Page</td>
I need to trigger the onmousedown property of a table contained on a web page presented in the WebBrowser control of my form.The site is a nested frames mess, but in this particular frame the tables are basically used to create large, context buttons. In other words, you click the table and are navigated to a subform.[code]At first I thought this might be handled by using InvokeMember("click"), but that has no effect. If I try InvokeMember ("onmousedown") I receive a javascript error on the page. Can anyone tell me if/how one invokes the onmousedown property of an object inside of the WebBrowser control?
View 4 RepliesI'd like to know if it possible to show HTML page created in VB using WebBrowser object without using files on disk.That is, create HTML file in memory and show it within WebBrowser object.
View 3 RepliesI am loading an html page into a WebBrowser object in a VB.NET Windows Forms application. The user may make changes to textboxes, dropdowns, etc. on the HTML page displayed in the browser. I want the ability to save the current context to a .pdf file on the local HD. I am able to print using WebBrowser.Print(), which shows the current context, but what ways are possible to get this saved as a PDF file locally?
View 2 RepliesIn VS2005, how could you get the current web page's source in VB.net's webbrowser object? I need to load a webpage up, and then grab everything out of the header and body tags, and then I want to replace some text inside of those tags, and then reshow the page with the updated source.
View 1 RepliesThere are issue with using WebBrowser late bind calls related to object/property names generation.For example:
WebBrowser1.Document.DomDocument.Forms.Myform.mycontrol.Value = "test"
will fail with more than one instance of the WebBrowser control.what actually happen is that mycontrol object become Mycontrol and compiled vb.net application will fail with error
Member not found. (Exception from HRESULT: 0x80020003 (DISP_E_MEMBERNOTFOUND))
at Microsoft.VisualBasic.CompilerServices.LateBinding.LateGet(Object o, Type objType,
String name, Object[] args, String[] paramnames, Boolean[] CopyBack)[code].....
Same code will work with vb6 app with multiple WebBrowser controls
Edit: This code is comipled with: Option Strict Off
I have a VB.Net Windows Forms application that incorporates the WebBrowser object.I want to place the input focus/cursor in a textbox after successfully loading a PDF document in the WebBrowser via the Navigate method.I tried to set the focus (TextBox1.Focus) in the DocumentCompleted event handler, but that failed.Or, I should say that the focus does not stay in the textbox.It appears that all processing initiated by the Navigate method is not complete even when the DocumentCompleted event is fired.And, as a result, the input focus is being moved from the textbox for some reason.
I now set the input focus in the ProgressChanged event handler when the CurrentProgress and MaximumProgress event agruments both have values of zero.This is successful, but I want to be sure that I can rely on the values of the event arguments.After I use the Navigate method, the ProgressChanged event is fired 4 times with the following CurrentProgress and MaximumProgress event argument values: 0 of 10000, 10000 of 10000, 10000 of 10000 (again), and finally 0 of 0.Can I confidently rely on a ProgressChanged event at the absolute end of a successful WebBrowser navigation that has CurrentProgress and MaximumProgress both set to 0?
how i can disable completely mouse and keyboard input on a WebBrowser object using Visual Basic 2008 i have this code:
Dim CarImp
As
New DirectoryInfo("C:VSEPRN")
If CarImp.Exists =
[code]....
i generate a small HTML file on a hard disk, put the AxWebBrowser2 object navigate to the file, all works fine, but i need to diable all user interface on that object. If the user clicks on object, the page reloads completely and i need to avoid that behavior.
I am grabbing an HTMLElement from a browser object and then using getElementById to grab the element I want. When the element is grabbed into the HtmlElement object double quotes around attributes like <input type="checkbox" name="test1" /> becomes <input type=checkbox name=test1>.It is removing the double quotes and backslash from the HTML available in the HtmlElement. Is there anyway to get the HTML element from Visual Basic .NET code and keep the true HTML formatting?
View 1 RepliesIs it possible to spoof the referrer of a webbrowser object that is posting data to a server? I would change to WebRequests, but this needs to be done via a browser.
View 2 RepliesSimulating the web Client/web server interaction in a winform using a webbrowser object in vb2005.net
In short I'm using the web browser object as a gui for a giant treeview folder list, in the html there is a form that needs to submit to perform the action, del, rename, etc.
How do I make my program catch the submit, process it and spit out the new info out to the webbrowser item in vb2005 winform?
Essentially what I want to do is copy a WebBrowser object such that I can do the equivalent of "Open In New Tab" or "Open In New Window" actions, maintaining any posted data. I don't just want to navigate to the same URL as in the original WebBrowser object, rather I want to repeat the HttpWebRequest.
View 1 RepliesIn VB6 I used internet explorer object a lot. There things internet explorer object can do that webbrowser control cannot. For example, internet explorer object is easier to debug because when the application is in debug mode, internet explorer object is still interactive with client. Also we can clear cookies and resstart with internet explorer object. We can do ie.quit, then set ie=new internetexplorer then ie.visible=true
In vb.net internet explorer object becomes webbrowser control and I have no way to do that? How can I delete cookies and then restart webbrowser control? How can I tell webbrowser control to "quit" or destroy it self? That sort of thing.
i want to have some web browsers which navigate wile the thread is running and my problem is that I want to use a web browser object from .net in a thread. when i put a webbrowser object in my form, called webbrowser1, i cant reach it in the thread's operation(start thread). when i type webbroeser1 in the thread it doesn't undrestand what webbrowser1 is.
View 5 RepliesI am somewhat new to object oriented programming and am attempting to flatten a Linq object hierarchy by using a shim class.how to initalize a derived class with property values from a base class?I have two objects, a base object with about 100 properties, and a derived object which inherits from the base object and adds a few additional properties beyond those of the base object. My simple constructor creates the derived object, but I am looking for a way to initialize the derived object properties with values from the base object.Right now I am using reflection to iterate over the properties individually and I suspect there may be a better way. The following example shows my shim class constructor for the derived class, and two properties:
newProperty1 - a new string property of the derived class
flattenedProperty2 - a new string property of the derived class, copied from a 2nd-level object of the base class
Code example:
Public Class derivedObj
Inherits baseObj
Private _newProperty1 As String[code].......
Is this the correct constructor approach to flatten the object hierarchy using a shim class? My second question relates to initialization of properties in the derived class. The constructor above creates the derived object, but what is the best way to initialize the derived object properties with values from the base object? The following code uses reflection to iterate over the properties individually, but I suspect there may be a better way.
Code example:
' property names are in the string array fieldNames
'baseObjQuery is an ienumerable of baseObj
'derivedObjList is a list of derivedObj[code].....
Is there a simple way to initialize values for the properties in the derived object based upon the values of the common properties in the base object?
how can i make my webbrowser open up a new link in my same webbrowser or in another form? basically what im saying is i dont want it opening links in internet explorer.
View 3 RepliesI 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 ?
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.
