Call To An IFrame Within A Webbrowser Control
Jun 21, 2010
I am using a Webbrowser control to sign into Hotmail. Then once it is signed in then I'll just use this navigate code to open the inbox: I think that the problem is that the actual inbox(mail window) is within an iframe. I have to figure out how to call within the iframe. If you can goto hotmail and sign in and you'll see once your in the inbox when you view source it isn't the inbox's source but then when you right click then goto this frame then view the source to the frame it is.
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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.
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Aug 25, 2009
I use a webbrowser in the application. the webpage shows a picture showing an IFrame. The picture changes randomly everytime when the page is loaded.I know how to save the picture if it is not in the iframe. but how to do that when it is in iframe? very weird thing is, I can not use the
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Feb 15, 2012
I want to find a url webbrowser control inside iframe.
1) my webbrowsercontrol opena url
2)that url has one iframe inside it
3) That Iframe has a link which I want to grab programmatically using vb.net
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Dec 18, 2007
How can I access the HTML source of IFrame within a page by using WebBrowser control?
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May 23, 2008
First off I hope I'm in the right forum.I have an application I built with the WebBrowser control in Visual Basic 2005. I am using the DocumentComplete event to track when a page has fully finished loading as some of the webpages I need to work with have frames.
The problem I am having is that when some iframes time out or don't load, the documentcomplete events stop firing. So if my webpage has 2 frames on it, we'd expect 3 documentcomplete events. One for each frame and one for the parent document once the frames have loaded. If say frame 2 does not load properly, the documentcomplete event for the overall document never fires.
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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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Mar 12, 2010
How could I call a script from WebBrowser Control?
Example:
<textarea class="watch-comment" name="comment" onfocus="yt.www.comments.watch5.inputFocus(this)" oninput="yt.www.comments.watch5.updateCount(this)">
Now I want to call this "oninput" script, so I can simulate clicking this textarea.
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Nov 21, 2010
I have the following website code below [code]Basically what I want is code on
A) How to get all the HTML code from within the Iframe.
B) How to change to properties of some elements e.g. the value of input "FNN_BOX"
I have tried the following code with no success but it dose not give me the HTML code from inside the iframe "MainIFrame"
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Mar 14, 2012
I have a program Which can get the frame's content, but if it is iframe I got error, normal frame with no problem, I need to detect the frame is iframe or normal frame.... but fail...
If WebBrowser1.Document IsNot Nothing Then
Dim element = WebBrowser1.Document.GetElementByTagName("iframe")
If element IsNot Nothing Then
checkiframe = True
[Code] .....
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Mar 25, 2009
I have implemented webbrowser control in my windows application. I have some functions inthe class file. i want to use those functions from the webpage which is displayed in my windows app through webbrowser control..For example say... I have an standalone windows software. Which has a webbrowser control in the some form. Now i would like to create a webpage that can be displayed in the webbrowser control in win app which has some buttons and textboxes. When i click on button in the webpage it should get the version number of that software. I have some other functions that are in the class file aswell.. but dont no how to call those functions from that webpage when a button is clicked or something like that.
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Feb 21, 2011
I have a facebook iframe app I'm trying to test using a WebBrowser Control on a form in VB.NET 2010. Whenever I try to access the WebBrowser.Document.Window.Frames frame object on a document where my app is showing in the broswer, I get an Access Denined exception. Reading around on the web, I see people saying that this is to keep scripts in a document from accessing content in iframes that are pulling content from another domain, as per [URL] for security reasons.
While I totally understand why this is done for the general public, how can I disable it on my machine so that I can run these tests? I can't properly test my app without doing it in the facebook iframe and using the WebBrowser control is the only way I know to do this test programmatically. I'm on windows server 2003 and ie8, .net4.0, if that helps. I own the domain where the app is, and its in AS.NET MVC2, so if there's anything I can do to the web code to enable this??? I also removed the Internet Explorer ENhanced Security COnfiguaration component, but that didn't help.
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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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Mar 4, 2009
How do I call a Javascript ( sampleButton.copyToClipboard() ) function in a webbrowser which is only linked with a button
<div id ="sampleButtons " >
<button class ="btn " onmouseout ="this.className='btn' " onmouseover ="this.className='btn btnhov'; Tip('Blub') " onclick ="sampleButton.copyToClipboard() " >
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Dec 15, 2009
I'm trying to select a button in a webbrowser on the website twitterfeed.com. My usual solution of finding the element and sending invokemember("click") doesn't seem to work for this particular page, and the button doesn't have an id. The button has the following code:
<a class="btn_1" href="#" onclick="document.forms[0].submit();return false;"> "Continue to Step 2" <span> </a>
I assume the .submit() is referring to an html function, so can I simply call that function from the webbrowser somehow?
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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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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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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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Nov 21, 2011
I have a menu item in a program that I'm working on called "mnuFileSave" The Click event goes through several "housekeeping" functions and calls the correct "Save" function.
Another menu item performs a function and depending on the results may want to call the "mnuFileSave".
I have tried RaiseEvents mnuFileSave.Click and get the error "mnuFileSave' is not an event of 'The_Entertainment_Collection.frmCollectionBook'
I have tried Call mnuFileSave.Click an get the error "Public Event Click(sender As Object, e As System.EventArgs)' is an event, and cannot be called directly. Use a 'RaiseEvent' statement to raise an event."
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Mar 3, 2012
can i call vc++ user control in vb.net
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Apr 29, 2010
Rank beginner here. Please be patient. I have buttons on my form. I can programmatically alter their properties:
btn00.BackgroundImage = Image.FromFile(sGrid(0, 0))btn00.BackgroundImageLayout = ImageLayout.Stretch
So far so good, but how do I refer to a button without its name. For example, is there a Me function (or something similar) like there is for forms, so I could do something like me.backgroundImage=ImageFromFile(sGrid(0,0))
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Mar 11, 2012
This is my first month for migrating from vb6 to vb.net.
i've simple code here :
this main form .:
Public Class Form1
Private Sub LinkLabel1_LinkClicked(ByVal sender As System.Object, ByVal e As System.Windows.Forms.LinkLabelLinkClickedEventArgs) Handles LinkLabel1.LinkClicked
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Oct 28, 2011
I have created two user controls (lets say A and B) and calling then on default.aspx. Both user controls have button named as clear and its event method "btn_clear_click (sender,event)". Actually I like to do something like this: if I click clear button of user control A then it would also do the same tasks defined in user control B's bth_clear_click method. Means, is there any why to call button event of one user control in another user control.
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Nov 19, 2009
I have an ActiveX/COM control written in C++/MFC which processes video (ie. 30 frames per second => about 33ms per frame processing budget) Various rendering aspects of the control can be modified using Set calls on the control, which clients can issue at any time.It turns out that someone (Windows scheduler, .Net interop wrappers, MFC call dispatcher, memory allocator, garbage disposal ?) is quite frequently eating an incredibly long 15.625ms to make or return from the call into the control. Thats half my per-frame budget eaten by some gremlins in the runtime !
The control itself is - for historical reasons - written in C++/MFC. The problem happens when the control is called from C# as well as VB.Net. It happens on very different hardware (an HP Pavilion 2.8Ghz Pentium D, a Macbook Pro with 2.5 Ghz Intel Core 2 Duo running Parallels VM). Just how often this mystery hiccup of 15.625ms occurs differs between machines, but when it does, it is always 15.625ms exactly. Strange.
I have made a rather minimal test case that strips out all the video processing etc.First, I created an MFC/COM Control project in the Project Wizard of Visual Studio 2003 and left things at their default settings (Apartment threading etc.). Then I added a single user defined call TestCall() to the control which does nothing (manually since there is no more classwizard)
Then I created a VB Client program which instantiates the control. It endlessly calls the TestTiming() sub which times how long a single call into the control takes and prints out that time.The TestTiming call basically just does this:
Code: startTime = DateTime.Now Dim h = AxTestControl1.TestCall() endTime = DateTime.Now Dim ms As integer = endTime.Subtract(startTime).TotalMilliseconds
I print out calls that take 0 ms (well something less than 1ms anyway) as "." and for calls > 0ms I print out the actual ms. The output looks something like this:.15.625 ms.........15.625 ms.........15.625 ms.........15.625 ms..........15.625 ms..........15.625 ms...........15.625 ms..........15.625 ms..........15.625 ms
So some variable nr of calls that execute quickly, as desired, and then a "hiccup" call that always takes the exact same amount of time (15.625ms), then some more quick calls.If instead of the user defined control function .TestCall() inside the timing I use a standard control property, like
Code:Dim h = AxTestControl1.Heightor a built in control method like
Code:Dim h = AxTestControl1.ToString()Then I never, ever get a hiccup call.
On different machines you will get a different average number of "." before a hiccup but even then the hiccup is 15.625ms I should mention that the sample code spins off a background thread and calls the TimingTest from its ThreadTask(). This is the way the bug was originally reported to me. However, I can put the
Code:Do TimingTest()Loop
right in the main UI thread - as the first thing in Form1_Load() for example. And it will exhibit the same behaviour, except there will be substantially more good=0ms="." calls on average between the inevitable hiccups.
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Oct 10, 2010
I have a few classes. One of the classes handles everything to do with updating controls (Such as adding items to a listview, etc.) and another is handling loops. I'm trying to add something to a richtextbox from another thread.[code]..
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Jan 25, 2012
How to exit from iframe?.I have a pages called "Master.aspx","Parent.aspx(inside that iframe is there)","Child.aspx".I am calling "Child.aspx" inside "Parent.aspx" page using iframe.If "strBillingAddress1" is null then i need to redirect to page Master.aspx".It is redirecting but showing inside iframe.I dont want this behavior.I need to open as new page itself?This is the code.
If String.IsNullOrEmpty(Session("strBillingAddress1")) Then
Response.Redirect("Master.aspx")
Response.End()
End If
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Nov 29, 2011
I'm writing a VB.NET app that will control a commercial backup product. One of the things I need to do is loop through all existing jobs and look at the source drive. I am able to do this in VBScript very simply like this:
[Code]...
However nothing I try in VB.NET works. I'm pretty sure it has to do with the fact that the com functions are returning variant data types and arrays (specifically GetVolumes). I have tried using string arrays, object arrays, and even wrapping the return value in a VariantWrapper and I always get errors such as "not implemented" or "the parameter is incorrect." If anyone is bored and wants to write some code I'll gladly give it a shot and report back.
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Mar 6, 2012
My main form is a tabbed control with 2 tabs. The first tab is has two listview controls which display information about the current machine. The second tab contains a treeview control and two listview controls. This tab recreates the device manager in windows. I created a Machine class to gather the information about the machine that I want to display to the user. When I call the Display() Method from my form's load event everything appears to be fine the first tab's information is displayed in the listview controls.
Here's the kicker, when I click to the device manager tab there's nothing there. The LoadTree() procedure never fires. This code works, I've seen my device tree display a thousand times in the past. When I comment out the call to Machine.Display() my device tree reappears no problem. The code compiles fine no errors. I know the problem has to be in my Machine class but I have no idea what could cause this kind of response. I've never seen a program compile clean and then refuse to fire a procedure call but not produce some kind of runtime error.
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