Using VB.Net, how would I go about checking if a loaded page in a Web Browser object contains a certain line of text? Sorry if theres an obvious answer for this, I'm used to programming in Java.
View 1 RepliesI am making this program that has a loop that goes to a website and fills in a form within the loop. But first, here is my code thus far
Dim message As String = TextBox3.Text
Dim loopnumber As Integer = TextBox4.Text 'makes the necessary variables
Dim browser As New WebBrowser
Dim url As String
[Code] .....
But what happens is that the loop runs a few times then it errors on the setattribute line (line 19 above) with
NullRefrenceException was unhandled
And I have a feeling that it is not loading the page fully before it tries to fill in the form.
I am building a program which relies on getting info from a twitter user. My idea was, I could either: A. Search the twitter user's feed for the current time. Or B: Get a email notification when he tweets, and send a sound. If I go with I would need to know how to search a webpage, get the time, and ring a sound if the time is present. If I go with B, I would need to know how to check email, and play a sound if a new email is recieved. Which one should I go with, and how would I do the things that I would need to know?
View 1 RepliesI want to know how to check if a word or sentence exist or not exist in a webpage. For example I want to navigate in the interior pages of a website and stop my app for read the content only where appear the sentence " Contenido en espanol" ..
View 2 Repliesi want to enable the use of a button only when the webpage has finished loading?
View 3 Repliesprogramming and was trying to get a form button to load the yahoo login webpage, wait until the send button was loaded and auto enter the username and password and hit the send button. My code is as follows
Public Class WebLogin
Dim ie As Object
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs)
[code].....
I am trying to get a form button to load the yahoo login webpage, wait until the send button was loaded and auto enter the username and password and hit the send button. My code is as follows
Public Class WebLogin
Dim ie As Object
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
ie = CreateObject("internetexplorer.application")
[code]....
How do I get any and all of the URLs of the resources loaded by a WebBrowser in a webpage?
View 9 RepliesI want to search for a particular string in web page loaded in web browser..
webpagecontent1 = WebBrowser1.DocumentText.ToString
dim strer() as string= {"Hell,"Heaven","Good"}
For Each i As String In strer
[Code]....
I am trying to write a program that will tell my grandmother whether the internet is live or not. I know, I know, She just doesn't get it. So I want to create a program to load google.com or something and all I want the program to do is tell her whether the site was found or not. Is there a way to do this with the WebBrowser control?
View 1 RepliesUsing the webbrowser control and conditional logic, how would I check to see if a specific site has been loaded?
View 6 RepliesIs there a way to check if a form has been loaded yet? I saw in C# they have a isLoaded property, but it doesn't seem to exist in the VB.Net Form class?
View 17 RepliesI have a form which contains a tab control with three tabs on it. On a second tab there is a PictureBox. The problem is I can't figure out how to check if the PictureBox is completely loaded.I can't put "pictureBox.CreateGraphics.DrawRectangle(Pens.Aqua, 100, 100, 100, 100)" into a form load event because picturebox is not active until I click on the tab2. It neither works with tab2.enter event nor any other events I have tried so far. However it works through the button.click event and it works briefly with the picturebox.paint event before its wiped out. So I presume it will work with a timer event as well.But the question is how to to make it work without a button or a timer?
View 3 RepliesHow do you check to see if a form is already loaded, ie if it is already loaded bring to the front else load the form.
View 3 RepliesIs there a way to see if a particular frame within the webbrowser control is finished loading? I know the functions webbrowser1.isbusyandebbrowser1.readystate=readystate_complete work for the main window, but it does not work when a frame is loading. It simply keeps saying the page is done loading. The event webbrowser1_documentcompleted sort of works, it registers when my frame has loaded, but it also registers when all the other frames are loaded. Is there a way to just check on the status of one particular frame.
View 2 RepliesI have a Parent form that loads a child form and I only want to allow one instance of the child form. I have this on the button to open the form. Stepping through the code with the debugger it "appears" to work OK when the form is open (I say appears because nothing changes) but when the form is closed it doesn't open as I would expect. What am I missing?
[Code]....
Typically I'd post some code and ask how to do something. This time I don't even know where to start. I need to check if a webpage is accessable. We are using adobe connect, there's a webpage that you can check that will tell you if connect is up and running. How would i go about doing this?
View 4 RepliesI'm writting a vb application that will go out and pull data from an internal webpage which I have no control over. I need to check a checkbox on the webpage. The checkbox ID is "Checkbox".The checkbox has javascript code in behind it that executes an onclick command: onclick="getMore(); return false; I've written code to perform the check of the checkbox but I guess the onclick is not happening. Here is my code so far. The user is given a form, they type in a # (SR.Text) and hit GO:
Code:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If SR.Text <> Nothing Then
[code]....
As I stated ealier the javascript "onclick" is not executing.
My Windows Forms Application has a WebBrowser. The program check the source code of the webpage (monitoring the changes) in every two seconds. I use a Timer:
Private Shared WithEvents myTimer As New System.Windows.Forms.Timer()
Private Shared alarmCounter As Integer = 1
Private Shared exitFlag As Boolean = False
[code]....
How can I check the encryption level of a webpage without using the IE's webbrowser control?[code]
View 1 RepliesI need to check if a webpage exists if it does whether a certain string exists anywhere on the page. Preferably I'd like to do this without a webbrowser control, so that images don't have to be downloaded and it doesn't have to be rendered.
View 1 RepliesHow would I be able to check what language the user is currently viewing my DotNetNuke webpage in?
If I'm only giving the options of english (canadian) and french (canadian), how would I check?
I've tried looking into currentculture, but haven't found anything yet.
I'm loading a textfile into a dynamically created RTB (whatever). The name of the file is added into a tab, which has the RTB in it: Path.GetFilename.
View 2 RepliesI have my datagridview being loaded from a Text File and then being saved to a text file as a comma separated file - the commas obviously separate the columns. However in some of the cells prior to saving, I have data that i have inputted over two lines by pressing shift + return.
E.g.
"SOLD
10/05/2012"
This saves fine, but obviously shows up in the text file as a line break, which then causes some issues when I choose to re open the info back into DGV. How I can code so that it saves as a line break within a cell, rather than a completely new line.
Ok i found a strange type of bug in MS default Richtextbox in vb.net 2008. If we add some line of text in Richtextbox programmaticlly. there is a gape from right side. see the image below
here is my code
Private Sub Button1_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim f As New Form
[Code]....
I have software which is loading texts from files in folder, also if user wants to click on link he just using "click" button and it will search it for him and will open in built in browser. Thing is that some of those texts has just [URL] instead <a href.... a>
At this moment I'm using this:
For Each link As HtmlElement In webMail.Document.Links
WebBrowser1.Navigate(link.GetAttribute("href"))
Next
But I'd like to to be able to click every link with just http in text, no matter if <a href is in use. I guess I can just add <a href to any http string but I guess there must be other way to do that. Should I some how look for any string with http and then just set it as variable and then navigate or can I use other way? So for now I have 2 ideas, one replace http://... with <a href... a>, or to find any string with http and set it as variable and then navigate to that web browser...
Well I have software which is loading texts from files in folder, also if user wants to click on link he just using "click" button and it will search it for him and will open in built in browser. Thing is that some of those texts has just [URL]
At this moment I'm using this:
For Each link As HtmlElement In webMail.Document.Links
WebBrowser1.Navigate(link.GetAttribute("href"))
Next
BUT I'd like to to be able to click every link with just http in text, no matter if <a href is in use.I guess I can just add <a href to any http string but I guess there must be other way to do that...Should I some how look for any string with http and then just set it as variable and then navigate or can I use other way ???So for now I have 2 ideas, one replace http://... with <a href... a>, or to find any string with http and set it as variable and then navigate to that web browser...
I'm trying to extract the text fields inbetween the code but the text is always changing so I'm not sure how to keep this dynamic. In put them in to the proper text boxes.
So text box 1 might be Date: then it pulls the date.
and there are multiple listings. so I need it to loop until the end of </table>
[Code].....
I have two UserControls already loaded how to change TextBox text property on a UserControl from the other loaded one.
View 1 RepliesI have no problem loading the contents of a text file into a richtextbox(rtb) with the below code. I can then edit and save the contents of the rtb to the file, and clear the rtb.
However, is the file still open? Does loading a text file into the rtb actually open that file? I am asking because I can't find any methods or techniques to close a file that has been loaded into a rtb. Is clearing the rtb the correct procedure?
Public Class Form1
Dim openFile1 As New OpenFileDialog()
Private Sub OpenToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OpenToolStripMenuItem.Click
[code].....