I am trying to scrap multiple sites for data. thus i need asynchronus request. funny thing is my code brings the data back from the page but it doesnot show on my browser. I mean a msgbox will show the html content but when I try to update a div with the data nothing happens
RequestState Class
Imports Microsoft.VisualBasic
Imports System.Net
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Here's the situation: I need to navigate to a list of sites and retrieve data from them; I know how to retrieve the data, but I'm unsure of the best way to navigate to each of these sites.
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I need to scrap data from a website where data is Inside table.
View 1 RepliesI have an app that is going to sign into my social bookmarking sites...I already have accounts on all of these sites but I want to programmaticly click on these links but each link has a different name for the link.Each link does has the same inner text info in the HTML but different urls for the links <a href="submit.php?" rel="nofollow">Submit</a>...How can I program my app to locate and click on the link that has the <a href="" rel= "nofollow">Submit</a>..Is there a way to ignore the information in between the ""?
View 1 RepliesI have an app that is needs to access multiple web sites and sign up for accounts. I don't want to run them one by one as this would be slow as christmas so I figured that I could setup some sort of background worker and put each process on it's own thread that way the app could run each sign up page at the same time. Would using background worker be the "BEST" option to use for this type of application requirement?
View 1 RepliesI'm Trying to send a file to multiple hosts by which sites they select on the treeview control. I can't figure out how to set it up.[code]...
View 2 RepliesI want to search data from onther sites.
View 1 RepliesI am creating a program that will assist users upload a file to a couple different upload sites. There will be RapidShare and Uploading. I want to keep the GUI clean and simple, so I do not want to use a web browser. I have not used much Post Data, but am wanting to use it for this job. What I want the program to do is after the user specifies a file, the program will automatically upload the file to the site.
Here is what I have so far:
Public Function MultiUpload(ByRef data As String, ByRef url As String) As String
Dim request As HttpWebRequest = DirectCast(WebRequest.Create(url), HttpWebRequest)
request.Method = "POST"
WebRequest.Create("[URL]")
request.ContentType = "application/x-www-form-urlencoded"
Dim postData As String = data
request.ContentLength = PostData.Length
request.ContentLength = PostData.Length
End Function
I have just written an app in VB 2010 with .NET 4.0 that contacts our field loggers to collect data via modem or IP. Originally it was written without threading, but now the requirements have changed and I need to collect data simultaneously from 4-6 sites at a time. I have never used threading, TPL, etc. Can anybody tell me where to begin so that I can concurrently run multiple collections?
View 6 RepliesI have a need to build an app that will access about 10 websites and pass data to them, etc.I've read about something called multi-threading when searching Google. I've also seen people say that they use multiple browsers.Which route is better to use? I figure if you have to do some sort of multi-threading that you would access a single browser?
View 2 RepliesI have an app that is going to sign into my social bookmarking sites...I already have accounts on all of these sites but I want to programmaticly click on these links but each link has a different name for the link.
BUT..Each link does has the same inner text info in the HTML but different urls for the links
<a href="submit.php?" rel="nofollow">Submit</a>
How can I program my app to locate and click on the link that has the
<a href="" rel="nofollow">Submit</a>
Is there a way to ignore the information in between the ""?
i have a big problem here when i want to insert 6 data into 6 different row in 1 click.
in field @ form it have name, staff no.,items, quantity and date. We can select 6 items to insert which i use ComboBox for save the data in form. In this case, each name can choose 6 items in one time and i want to save it in database just in 1 click. that mean it will put a same name in 6 rows in a table. the look like this but it not complete...
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How to insert multiple data into mssql without using loop?
i'm developing a clinic management system, while doctor may give few medicines to patient,therefore i hope inside my database,the data will look like
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this is my 2 tables, i hope when storing data ,the recordID will not increase based on how many ItemID inserted.
Sometimes, there are some text in a website which isn't in the html, meaning I can't retrieve it using a get webrequest. For example, in facebook, the list of friends in the 'stalker bar' isn't in the html. Is it possible to get this list of friends?
View 2 RepliesLately I've had to do a bit of programming in VB .NET. It hasn't been too difficult, but the lack of proper documentation or good tutorials has been annoying me. I'm used to finding a lot of relevant info when I google a programming question, or term, or method name - but it's been more difficult with VB .NET. Anyone know of any good tutorial/documentation sites for VB .NET?
View 3 RepliesI am creating a security program. One of its features is that it blocks inappropriate web sites. I might need help determining which sites are bad and which ones are good. If I could 'read' every work that is displayed in the browser then I could tell, but that may come later.
So, I'm looking for some kind of hook that will allow me to cancel the site if needed. It should be able to still be hooked in Safe Mode, as well... I'm sure that this is going to be an easy one!
I'm creating an API for a particular website. This API will be in the form of a referable DLL. I've tried the normal HttpListner but it errors when getting any data that is through https (basically anything specific about the currently logged in user). I also can't log in using it. My next attempt involved a hidden webbrowser but that is just as hacked up as it sounds (and very glitchy seeing as the WebBrowser likes to interrupt processes that are currently running with its events). I need a system that works and is fast and efficient (I know, I know, kind of a oxymoron). Does anybody know how to do this?I'm using VB.net so any .net code examples are acceptable.
View 2 RepliesSituation: Trying to learn Visual Studio and VB. I have been using Expression web to build web sites for several years. But not alot of programing within them.I have started a project using Visual Studio 2010 Pro and am working in VB. I am converting one of my sites from Expression over to VS and want to start using the Code Behind model for all of my web sites on this one and all future sites. I have a simple form that works on my old site but in the new site the I have no idea as to how to set up the Namespace's (System.Text and System.Net.Mail). Does it go on the page with the form or on the VB page? If someone has a good example of how to set up a form for emailing the results I would really appriciate looking at a copy of it.I use VB as I am the most familiar with it. I have no experience yet with Java or PHP.
View 2 RepliesI'm creating a simple web browser. I have a combobox for the url address bar. I'd like the combobox to drop down and display the sites that have already been viewed. I think I can use the BeforeNavigate2 event to do this but I'm unsure how to use it.
View 3 RepliesI want to make a program that will get you a source code from any webpage.[code]
View 4 RepliesOk so imagine there is a forumand when my program goes to this in web browser.
View 1 RepliesI would like to make my program able to read the content of a *.txt file which I've uploaded on a free server (dmon) I've tried this:
"System.IO.File.ReadAllText("http://passby.dmon.com/test.txt ")"
For the past year-ish i have pretty much mastered the httpwebrequest function of programatically logging in to 1 of my websites to retrieve data, while it works well i was thinking about the webbrowser function, would i be better sticking to the webrequest route? it looks like the webbrowser requires much less code which is good lol can the webbrowser do everything httpwebrequests can?
View 1 RepliesI'm making a program but I don't want people to abuse it, it loads a site and then refreshes it. People can abuse this by getting views for a game and what-not. What code can I use so that the webbrowser only loads the homepage and not some thing like
View 4 RepliesHow to block sites with my own webbrowser in vb2008
so when i navigate to a blocked site it wont be opened...
not things like : c:windowssystem32etchost
but when blocked site start navigating webbrowser1.allownavigation = false , or webbrowser1.documenttext = "<font size=7><font color=red>This site isn't allowed</font>
Are there any sites which a similar program or web-exam? The best example I can give is Auto-it's "Auto-it 1,2,3" found here.This is for an absolute-beginner,
View 1 RepliesI made a web browser and I wanna to add to it the favourite menu feature how?
View 3 RepliesI have about 100 websites that I am going to be accessing to scrape some data from (weather, time, etc). When I go to code these babies there will be an abundance of sub routines that I will be creating. They each are going to be accessing pretty much the same type of data.
Should I put them into a Class some how and acces them that way or should I just use Subs and then call them into the Document Completed section of my web browser to run the code? Still sort of confused on the whole Class vs. Sub Routine thing.
I need a way to programaticaly block and then later unblock specific websites based on their domain names. I only need to block browsers (so http & https would be sufficient, I guess?) but not just Internet Explorer, it should also work for anyone trying to run Chrome or Firefox too.
View 4 RepliesI'm writing a program in VB.NET, and I'm having trouble with my httpwebrequest code. I've used live HTTP headers for firefox to get the correct post data, but for some reason it won't login.The thing is, I've used identical code for another similar site (changing just the post data) and it works just fine.
Imports System.Windows.Forms
Imports System.Net
Imports System.IO
Imports System.Text
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