I a wondering if and how you would be able to block a certain element in the webbrowser.
For example there is a certain element on a website:
<div class="btn" id="button" value="ClickMe"/>
Will you be able to block or hide that specific element in the webbrowser?
There might be a certain ad, iframe or whatever its called that might just be in the way?
Thanks for the help I appreciate it.
double click on webbrowser1 designer you should be in WebBrowser1_DocumentCompleted add this line
'selector by division id
webbrowser1.Document.getElementById("button").innerHtml = ""
'selector spesific element with spesific attribute
<input id="_authentication_token" name="_authentication_token" type="hidden" value="11740686"/>
dim mycol as htmlElementCollection = webbrowser1.document.getElementBytagname("input")
for each ele as Htmlelement in mycol
if (ele.getAttribute("value").tostring = "11740686") then ele.innerHtml = ""
next
for your exemple :
<div class="btn" id="button" value="ClickMe"/>
dim mycol as htmlElementCollection = webbrowser1.document.getElementBytagname("div")
for each ele as Htmlelement in mycol
if (ele.getAttribute("value").tostring = "ClickMe" and ele.getAttribute("id").tostring = "button" ) then ele.innerHtml = ""
next
Related
I have a TextArea in a page of my Site, I want to display the text of this TextArea, using the Document of a WebBrowser Control, to a Label.
This is the TextArea definition:
<textarea class="cadr" id="bar" name="saisie"style="height: 260px; width: 700px;"> simple text</textarea>
How can I do it? I have this code:
WebBrowser1.Document.GetElementById(label1.text).GetAttribute("value", "bar")`
The Element you describe has no ID, so you have to resort to the className of both the TEXTAREA and its DIV parent (to narrow down the chance to get the wrong element).
<div class="labelapper"><textarea rows="3" cols="80" class="Label">text1</textarea></div>
You can use GetElementsByTagName() instead of GetElementsById(), then filter the results
Something like this:
Imports System.Linq
' [...]
dim innerText = String.Empty
dim textArea = WebBrowser1.Document.GetElementsByTagName("TEXTAREA").
OfType(Of HtmlElement)().
FirstOrDefault(Function(elm) elm.GetAttribute("className") = "Label" AndAlso
elm.Parent.GetAttribute("className") = "labelapper")
if textArea IsNot Nothing Then
innerText = textArea.InnerText
End If
EDIT: The HtmlElement in the original post has been changed, now showing an ID
dim textArea = WebBrowser1.Document.GetElementById("bar")
if textArea IsNot Nothing Then
label1.Text = textArea.InnerText
End If
I am connecting to a website trough a webbrowser, then i want to post a message on a message board.
This is the HTML of the text box:
<div class="fr-element fr-view" dir="ltr" contenteditable="true" style="min-height: 100px;" aria-disabled="false" spellcheck="true"><p>TEXT GOES HERE</p></div>
I have tried the following 2 codes:
For Each CurrentElement As HtmlElement In WebBrowser1.Document.GetElementsByTagName("div")
If CurrentElement.GetAttribute("class") = "fr-element fr-view" Then
CurrentElement.InnerText = TextBox1.Text
End If
Next
For Each CurrentElement As HtmlElement In WebBrowser1.Document.GetElementsByTagName("div")
If CurrentElement.GetAttribute("class") = "fr-element fr-view" Then
For Each InnerCurrentElement As HtmlElement In CurrentElement.GetElementsByTagName("p")
InnerCurrentElement.InnerText = RichTextBox1.Text
Next
End If
Next
None of them does anything
I really havent even messed around with HTML before this at all even so I am not sure what I could search for to solve my issue as I am able to handle other text boxes, for example the login ones which are like this:
<input type="text" class="input" name="login" autofocus="autofocus" autocomplete="username" id="aaaaa">
You must to do that after your WebBrowser have finished to load the document. A little example below:
WebBrowser1.ScriptErrorsSuppressed = True
WebBrowser1.Navigate("https://html.com/tags/input/")
AddHandler WebBrowser1.DocumentCompleted, Sub(senderObj As Object, eObj As WebBrowserDocumentCompletedEventArgs)
Dim inputs As HtmlElementCollection = WebBrowser1.Document.GetElementsByTagName("input")
If inputs IsNot Nothing AndAlso inputs.Count > 0 Then
For Each current As HtmlElement In inputs
current.SetAttribute("value", "Eurekaaaaaaaaaaaaaaaaaaaaa")
Next
End If
End Sub
I'm trying to make an automatic login in my program.
This is the code I'm using to find the email box and then set the value:
WebBrowser1.Document.GetElementById("email").SetAttribute("value,", ID & "#hotmail.com")
If I insect the element of the email box it says input class="textbox" type="email" name="email"
What am I doing wrong? :L
The element doesn't necessarily have to have an ID.
http://msdn.microsoft.com/en-us/library/system.windows.forms.htmldocument.getelementsbytagname(v=vs.110).aspx
If that's the case, you should take a look at getting a collection via GetElementsByTagName and looping through - something along these lines:
Dim Elems As HtmlElementCollection
Elems = WebBrowser1.Document.GetElementsByTagName("input")
For Each elem As HtmlElement In Elems
Dim nameValue As String = elem.GetAttribute("name")
If nameValue.ToLower().Equals("email") Then
elem.SetAttribute("value,", ID & "#hotmail.com")
End If
Next
Refer to id instead of name. i.e. "email_ema" instead of "email"
input name="email" type="button" id="email_ema" value="+" style="display:None;"...
WebBrowser1.Document.GetElementById("email_ema").SetAttribute("value,", ID & "#hotmail.com")
I am trying to use the WebBrowser in Visual Studio 2012 (Visual Basic) to click a button. I have done a lot of research, but all I can find is to click with an ID or a name.
Here is the HTML code.
<button type='submit' class="btn btn-default" style='float:right'>
Login<i class="gicon-chevron-right"></i>
I am going to have the webbrowser hidden, & then when the user clicks Button1, it invokes the click on the webbrowser. Please help.
You need to search for your element one by one. Try something like this:
For Each elem As HtmlElement In wb1.Document.GetElementsByTagName("button")
' Check the attributtes you want
If elem.GetAttribute("class") = "btn btn-default" Then
'Check even the text if you want
If elem.InnerText = "Login" Then
'Invoke your event
elem.InvokeMember("click")
End If
End If
Next
This will search on all the button elements on the document. You could narrow the searching by looking inside some element that contains your button that has ID or something:
Dim myElem As HtmlElement = wb1.Document.GetElementById("myContainerId")
For Each elem As HtmlElement In myElem.GetElementsByTagName("button")
'...
Next
simple code :
WebBrowser1.Document.Forms(0).InvokeMember("submit")
Dim HtmlElementcoll As HtmlElementCollection = WebBrowser1.Document.GetElementsByTagName("input")
For Each elem As HtmlElement In HtmlElementcoll
' Check the attributtes you want
If elem.GetAttribute("value") = "Sign In" Then
'Check even the text if you want
' If elem.InnerText = "Sign In" Then
'Invoke your event
elem.InvokeMember("click")
'End If
End If
Next
i have modified the code above and its working add HtmlElementCollection and you are good to go..
I am trying to click a button programatically . The button is on the 3rd page of the website. and it does not have any id . It has just name , type and value . The HTML code of the button is given below
<FORM NAME='form1' METHOD='post' action='/dflogin.php'>
<INPUT TYPE='hidden' NAME='txtId' value='E712050-15'>
<INPUT TYPE='hidden'NAME='txtassId' value='1'>
<INPUT TYPE='hidden' NAME='txtPsw' value='HH29'>
<INPUT TYPE='hidden' NAME='txtLog' value='0'>
<h6 align='right'>
<INPUT TYPE='SUBMIT' NAME='btnSub' value='Next' style='background-color:#009900; color:#fff;'></h6></FORM>
I have tried these codes in vb.net 2008 express edition...
For Each webpageelement As HtmlElement In allelements
If webpageelement.GetAttribute("value") = "Next" Then
webpageelement.InvokeMember("click")
End If
Next
And 2nd one
theElementCollection = WebBrowser1.Document.GetElementsByTagName("INPUT")
For Each curElement As HtmlElement In theElementCollection
ctrlIdentity = curElement.GetAttribute("innerText").ToString
If ctrlIdentity = "Next" Then
curElement.InvokeMember("click")
End If
Next
and 3rd one is
Dim l_forms = WebBrowser1.Document.GetElementsByTagName("form")
If l_forms.Count > 0 Then
l_forms.Item(0).InvokeMember("submit")
End If
and 4th one is
Do While WebBrowser1.ReadyState <> WebBrowserReadyState.Complete
Application.DoEvents()
Loop
WebBrowser1.Document.Body.InnerHtml = Replace(WebBrowser1.Document.Body.InnerHtml,"NAME='btnSub'", "NAME='btnSub' id='btnSub'") 'insert id into youre button
WebBrowser1.Document.GetElementById("btnSub").InvokeMember("click") 'click on btnSub
and the last one is
Dim i As Integer
Dim allButtons As HtmlElementCollection
allButtons = WebBrowser1.Document.GetElementsByTagName("input")
i = 0
For Each webpageelement As HtmlElement In allButtons
i += 1
If i = 5 Then
webpageelement.InvokeMember("click")
End If
Next
These all codes are unable to click that button. Kindly Please Suggest a appropriate solution for clicking this button. Thank You So Much
something like this would be a server side JavaScript and jquery solution
string script = "$(document).ready(function() {$('input[name=btnSub]').trigger('click'); });";
ScriptManager.RegisterStartupScript(this, GetType(), "ServerControlScript", script, true);