VS 2008 - Document.getElementById - Take Values & Innerhtml From Some Elements On A Webpage
Sep 8, 2009
I want to make an application that takes values & innerhtml from some elements on a webpage i made. For that i added a webbrowser to the project, and pointed it to navigate to my localhost server where i have some pages. However when i use the document.getelementbyid i don't get nothing on my richtextbox, and i don't know why, i use this function lot in javascript & i think its quite similar, so i don't know why it doesn't work , here is the code i use.
[Code]...
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Dec 24, 2011
I'm trying to fill a webpage in using GetElementById
Basically, the problem I'm having is that there are two textboxes that have the same name, and because of the way GetElementById works, it inputs the first textbox instead of the second (Which I'm trying to input)
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Feb 14, 2012
I would like to know please what is the difference between the 2 syntaxes :
Dim page As IO.Stream = WebBrowser1.DocumentStream
Dim s As New IO.StreamReader(page)
[Code]...
Sometimes one of them fits what I want, and sometimes the other fits what I really want... I still don't get StreamReader and StringReader and DocumentStreem and Document.body.innerhtml ... I hope somebody could explain please... because I am confused.
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Sep 20, 2010
stuck on this one basically, im trying to navigate from one page to another iv looked though the HTML code found the input_id and .invokemember("Click")
the line of code i used was WebBrowser1.Document.GetElementById("ctl00_ContentPlaceHolder1_btnNext").InvokeMember("click")
[code].....
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Jul 19, 2009
I have a working code that works if the element id exists, but what happens when it doesn't. It stops the code read from where it doesn't exist. I don't receieve any errors,. I have tried:
If WebBrowser1.Document.GetElementById("displayAge") = "" Then <---this doesn't work, needs to check if Element exists if not then exits, if does then it gets attribute
[Code]...
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Sep 8, 2011
I am getting a javascript error when I attempt to click on my calendar control.
The html code is:
<td align="left" style="width:50%;"><asp:Label runat="server" CssClass="TextFontBold" ID="lblStartDate" Text="Start Date:"></asp:Label>
[code].....
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Aug 17, 2011
I am getting this error when I call a javascript function to display a modal window:
Microsoft JScript runtime error: 'document.getElementById(...)' is null or not an object
The code block is:
else if (action=="officeview") {
document.getElementById("OfficeContent").src="ChangeView.aspx";
ShowFeatureModal('AppView','OfficeContent')
The object is this situation, does exist. Error is caused at: document.getElementById line.What else could be causing the error?
Update:Index.aspx is calling the javascript function which is located in sysUtilities.js file. The source file is yet a seperate page (ChangeView.aspx)
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Jan 2, 2010
Dim Document = XDocument.Load(FileName)
Dim findElement = Document.Elements("GradeProfile")
[code]....
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Feb 10, 2010
I'm attempting to grab data from a webpage, but I've been unsuccessful in my attempts.
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Nov 20, 2009
i am using a webbrowser control on a windows form to display streaming video from cameras at different locations.i can get the image to display on the webrowser but my problem is that there are other links and texts that are displayed on the webpage.
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Aug 25, 2010
I managed encrypting an xml document by encrypting an element and then replacing the element with the encrypted data. A shown in the sample code below. Public Shared Sub Encrypt(ByVal textReader As TextReader, ByVal textWriter As TextWriter, ByVal certificateName As String)
[Code]...
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Jun 20, 2008
I want to get the links and images from an html code using the htmlDocument class available through webBrowser.So I retrieved and assigned the html code to the webBrowser trying each one of this 3
[Code]...
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Mar 2, 2011
I'm creating an application that will be visiting several different sites.Each site will have the same elements but not necessarily in the same order.On a previous post I was told to use the Select Case to choose between the choices.Can Select Case be used to choose between Webpage elements?Let's say that on one site the first web page element is choose button A but on site two it will choose button B.
Dim makeachoice As String
makeachoice = webbrowser1.element button A
Case signin
[code].....
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Apr 15, 2011
What I need to do is grab all the web page elements on a web page (id, name, etc) and place them into a textbox to view...Currently I have this
Dim htmlElements As HtmlElementCollection = WebBrowser1.Document.GetElementsByTagName("input")
For Each el As HtmlElement In htmlElements
If el.GetAttribute("name").Equals("name") Then
[code]....
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Feb 4, 2012
my problem:
HTML source
...<input type="submit" value="buy" name="Submit"/>...
I can`t use WebBrowser1.Document.GetElementById("Submit").InvokeMember("click") because in this page is more than one form with name="Submit".
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Dec 23, 2009
I'm working on a easy-login client, but I can't hit submit for the love of god. my code looks a bit like this:
Me.WebBrowser1.Document.All("Username").SetAttribute("value", txtUser)
Me.WebBrowser1.Document.All("Password").SetAttribute("value", txtPw)
Me.WebBrowser1.Document.Forms(0).InvokeMember("Login")
I'm pretty certain I have the name right for login. The User and password fill in wonderfully. Any suggestions? (I've tried this on other web forms and I couldn't hit submit on them, either)
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Mar 10, 2011
I have a situation where I have an xml document that has a bunch of elements that I basically use as data variables. I populate the variables from various sources and then transform the xml file to an html file for user viewing.having to remember the names of all the data elements in the file is somewhat tedious. Is there a way to generate a strongly typed xml document object so that one can simply dot into the various data elements?
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Aug 29, 2009
<p><a href="library.php"><img src="images/choose-library.jpg" alt="Choose from the PrankDialer library" width="450" height="175" border="0" title="Our selection of pranks is constantly growing" /></a></p>
That's the code for it but i can't figure out how to make it click it. Usually I'd go with this:
WebBrowser1.document.GetElementById("imageid").InvokeMember("click")
But it won't work in this situation
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Oct 21, 2011
I have a VB.Net app that needs to print a bunch of pages from a secure intranet site; the app was made and was working for a non-secure site but now the app needs to login before accessing the web pages necessary to print. I get the error "Object Reference not set to an instance of an object" when I use my new Sub which follows:
Private Sub SiteLogin()
WebBrowser1.Navigate("http://url/login/")
WebBrowser1.Document.GetElementById("user").SetAttribute("value", "username")
[code]....
This Sub prints the given page in IE, so I figured I could use the same WebBrowser1 object for the login Sub, as I don't know how to or whether I should declare a separate object for the SiteLogin Sub. Both of these functions are called after the WebBrowser1 object is defined however. I just need to be able to submit a simple login form to a set URL, and this info needs to all be hardcoded (there's no option to set the location or login info nor should there be).
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Feb 3, 2011
how to SetAttribute (a Value) for a textbox in a webpage document that don't have an ID .I already knows that to SetAttribute to a textbox you just need the ID of the element.
I.E : WebBrowser1.document.GetElementByID(THE ELEMENT ID).SetAttribute("Value",TextBox1.text)
So as you see in the example, to set attribute to an Element I need an ID and in my case I don't know what is the ID of the Specific Element.
This is the ViewSource of the Textbox :
<input name="ctl00$ContentPlaceHolder$ccEnterCode" type="text" size="5" maxlength="5" value="">
I don't see where's the ID !
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Dec 22, 2010
I have been used getelmentbyid in past in vb6 using webbrowser control and internetexplorer instance But in vb.net i tried to fetch webpge using the httpwebresponse Which gives the html / source in the form of sting Is it possible to fetching data by getelementbyid using httpwebresponse and httpwebrequest method ?
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Nov 3, 2011
Here's a portion of my XML string.
<OpenSearchDescription>
<opensearch:Query searchTerms="Star Wars"/>
<opensearch:totalResults>18</opensearch:totalResults>
[Code]....
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Oct 20, 2011
Here's a portion of my xml file
<sources><comicbooks><source>
<profile>0</profile>
<name>Main</name>
<path>*mypath not showing*</path>
</source></comicbooks></sources>
I am also using a schema file for the sources.xml file.
Here's my
Dim fileSources As IO.File
If fileSources.Exists(filePath & "sources.xml") Then
Try
Dim Sources As XDocument = XDocument.Load(filePath & "sources.xml")
[Code] .....
lbSources doesn't get populated with anything and Label2 doesn't change either.
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Dec 20, 2011
I am parsing a web page with the HTML agility pack in vb.net and it works great most of the time, but I have come across a site I need help with.
When I go to grab the web page with my http object (I am using chilkat http and it does not have a javascript engine) I get back the page which is poorly written with document.writes for basically the entire page.
I do not want to use the browser control to first render the page.
Do you know of anything that will allow me to parse this page easily with xpath... does xpath work with javascript? Is there a way for me to remove the javascript with the agility pack?
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Aug 19, 2011
I have a user defined structure in a list that I am trying to change the value for in an individual element within the list of structures. Accessing the element is not a problem. However, the compiler complains
"Expression is a value and therefore cannot be the target of the assignment"when I try to update the value.For example:
Public Structure Person
Dim first as String
Dim last as String
Dim age as Integer
[code]....
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Nov 5, 2009
How to get values for array elements in VB.nET from the user.also i wanted to display these values in the combo box.[this is easy i could manage this].
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Jun 14, 2012
There are some html buttons which dont have id . i want to access these html buttons which have the same type name and values . But i cant able to access then due to their same names and values [code]...
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Sep 4, 2010
I am new in programming. And I am coding with VB.Net (VB2008). On my form I have 9 checkboxes. And each of this checkbox when checked is meant to submit a value to a dynamic array. Initially the array was a constant that was declared like these:
Dim Notes() AS integer = {1, 2, 5, 10, 20, 50, 100, 200, 500, 1000}
But I want the array to be dynamic. That is the user of the program is to enter the element of the array. So I decided to use checkboxes. So that if the user of the program checks any of the checkboxes, a particular value or element should be submitted into the array. And the user should be able to check as many checkboxes and have values representing those checkboxes submitted in to the array.
For example: if the user check checkbox1, checkbox2 and checkbox50.
The array should look like these. { 1, 2, 50 }
or if the user check checkbox1000, checkbox200, checkbox10 and checkbox500
Then the array should hold or contain the following integers in this order; {20, 200, 500, 1000}.
That is the array is dynamic and the content/elements of the array and the bound of the array should depend on the checkboxes that is checked. What other means can I used to enter values/elements into a dynamic array during run time.
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Jan 4, 2011
I'm trying to read the XML I generated. Here's my writing code:
'XML EXPORTATION BEGIN
'Create the file
Dim myXmlTextWriter As XmlTextWriter = New XmlTextWriter("C:Simple TimerProfiles" + timer_name + ".xml", System.Text.Encoding.UTF8)
'Choose Formatting
myXmlTextWriter.Formatting = System.Xml.Formatting.Indented
[Code] .....
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Apr 28, 2011
I am automating Word from VB.Net.I open a document by:
Dim msWord as Word.Application = CreateObject("Word.Application")
Dim doc As Word.Document = msWord.Documents.Add(Template:=Path)
where path points to a template file I created with a header and a watermark. The template has some bookmarks which I want to dynamically set to some appropriate text values:
doc.Bookmarks("DocumentTitle").Range.Text = "The Joy of Office Automation"
If I comment out that line, the document opens in Word with the watermark, etc, in place. If I let that line execute, it inserts the text as appropriate, but the watermark and other things disappear from the document. You can actually see it flash briefly, and then disappear.FWIW, this is Office Word 2007, and I am opening a .Dot (Word 97-2003) template. The Bookmark.Range.Text I am setting is in the document header.
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