I'm trying to download a WebPage as a String, which works, however, I can not parse each line of Html at a time. I can either, Parse each Character, or parse the whole thing as a single String. Here's my
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I don't know enough about VB.Net yet to use the richer HttpWebRequest class, so I figured I'd use the simpler WebClient class to download web pages asynchronously (to avoid freezing the UI).
However, how can the asynchronous event handler actually return the web page to the calling routine?[code]...
I'm trying to Download a String from a Webpage, but in order to do that, I need to download the whole webpage. I've found it easier to use DownloadString, but I can not figure out how to process each line of the Downloaded String, as it is one whole string.
View 4 RepliesI have a Web Browser and I have a button where I can get the HTML Source of a Web Page. The code I have so far stores the HTML Source in a string:
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My program so far reads a certain webpage's source code and places it in a textbox. This much has already been accomplished.
Now I need to pick certain strings out of the rather large amount of text data and have the lines stored in variables, but the trick of it is, the exact string is unknown. The exact function should be, that the code finds certain tags from the source code, say <td> and </td> and takes the string data in between those tags, what ever it may be.
I make a program to check certain website.
The idea is to do webclient.DownloadStringAsync thingy and then wait till each one is solved. So like multi threading application.
The program itself is a single thread.
Well, when I loop 400 times it takes too long. Every time I press pause the program in debug it stop at this line[code]...
as per usual i am a little confused. I know DownloadStringAsync runs on a threaded pool with a default min and max threads limit, but what confuses is how would i call DownloadStringAsync say for example ten times.Example.I have an array with 10 URLS. Surely i would not use a for each loop of the array index to pass the url address while each time calling DownloadStringAsync(New Uri("someArray(index)") surely we can pass say a range of items from the array and let DownloadStringAsync decide on the threaded pool how many to process each time?
View 6 RepliesI am trying to build a code to get the website asynchronously using webclient.download stringasync..I want to pass the data thus retrieved from dowloadstringcompleted to another function.[code]My problem is that I am not being able to pass on the values as StartDownload gets completed, while data is still being retrieved.
View 8 RepliesHow can I get a string from a web page and display it on my program in a label?[url\...
View 4 RepliesI am trying to get several strings from a web page and add them to a listbox each string I need to grab falls in between these two strings
<a rel='lightbox' href='
And
'>Image Only</a></td>
there will be several of these strings on the same page?
I read the following question to download a web page whose contents is coded in UTF-8. The page is then converted into a byte array, while I'm using a String to read contents from the page.
I need to turn UTF-8 into Latin1/ANSI since that's what RichText and MessageBox seem to use (I'm getting funny characters).
Is there a more direct way to donwload a UTF-8 page and convert it into ANSI/Latin1?
Edit: When callig MessageBox, accented characters are not shown as expected:
Content = CStr(e.Result)
'Théâtre, Métro
MessageBox.Show(Content)
How would i put the contents of a webpage into a string?
it would be the same thing as hitting ctrl+A and copying and pasting it.
is there a way to do this programmatically without 'sendkeys' ?
i do not want to look at the html source at all, i just want to copy the text on the site
I wanna do something like this
Dim strExampledotcom as String
strExampledotcom = (whatever to get a webpage)
(do stuff)
(etc...)
I want to test the first word in the page. [URL]
It says "Sorry!" if the screen name is taken. It says "Congratulations!" if it's not.
I'd like to make the request url like this: [URL]
inb4 remove html: I already figured I need to do this.
I 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 RepliesI done this:
sTxt = File.ReadAllText("C:someWebPage.html")
I have forums and it has a name on it in the smae place evry time no matter which userpage im on.
HTML
<dl class="stats">
<dt>Gamertag</dt>
<dd>Yoshi910</dd>
</dl>
the Name is always under Gamertag. Is there a way for me to Grab that name in .net
I have some web-radio site and i want my program to record the song name from the webpage, i dont really know how,
i made RichTextBox and i made a WebClient....
I dont know how to make it look for the string that shows the name song.
lets say webpage has 2 strings named sampleObj="sample1" and sampleObj="sample2" Even though sampleObj remains the same the text inside, however, changes.How would you loop inside page and get sampleObj text each time? I tried Regular Expressions and GetElementsByTagName but no luck.
View 1 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
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I am trying to create a program which does something similar to a function in excel but with increased functionality. What I need to know for this is how to get the program to search a webpage's source code for a specific string and unfortunately I have no idea how to even begin going about this.
View 2 RepliesIm am trying to parse a web page for a particular text string, But VB2010 keeps saying there is an error at this part of my code request.GetResponse The guide i was following doesn't explain the error. could some one take a look ?
Imports System.IO
Imports System
Imports System.Text.RegularExpressions
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I have tried request.beginGetresponse and request.endGetresponse.
I'd like to be able to set a HttpWebRequest to read teh contents of a text file located on a website (ive seen it done, they use a webrequest and set it to a string, but i can't find it anymore o.O)
View 3 Repliesi am scraping title of webpage. i am using webclient class to get its html source. the true title of webpage is this which appear on browser:
"La r�volution"
but when i extract it from html source using webclient class i get following string.
"La révolution du sourire juste"
i think its something related to string conversion. so any one help me how to convert this "La révolution du sourire juste" to "La r�volution"?
following info on webpage might give you some clue which is content type.
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
i am developing application for windows phone and i want to read an xml from the web so i am using on page loaded event :
Dim cl As New WebClient
AddHandler cl.DownloadStringCompleted, AddressOf cl_DownloadStringCompleted
cl.DownloadStringAsync(New Uri("demo.com/1.xml",UriKind.RelativeOrAbsolute))
and on cl.DownloadStringCompleted event :
Dim doc = XDocument.Load("demo.com/1.xml")
but for some reason i crashes ! the bug must be that i have not to use URI : "demo.com/1.xml" , but some else?
i have an aspx page with vb.net back end. in that page i get names and url's from the database depending on different conditions. My requirement is that when i get the url, the code should then use that url and have that webpage in a small preview form on my existing aspx page. so basically i have a table as follows -
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I making a webpage with the help visual basic. I wanted to put a flv video in it and i used flash control for asp.net [URL]. I made the player in flash told it to download the video from the sever. Now when i put the player on the webpage and put the webpage on the sever it cant play the video. But when i just pres the the player which is in swf format it works. It can download the video. But when i put the player on my webpage it cant.
View 5 Replieson my local network, I have an XML on a computer called "test.xml". If I go into my web browse and type: can see the xml file with the Elements. If I visit it in VB.NET using a Web Browser, again, I can see the content. However, when I try to parse this information into VB it fails every-time. I've Tried using:
WebBrowser1.Document.Body.OuterHTML
WebBrowser1.Document.Body.OuterText
and they both give me the error: "Objec
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How to open a webfile?, not to download![url]...
View 8 RepliesIs there a way to load and get let's say only the first 500 characters of a website instead of the whole thing?
View 6 RepliesI got a small issue. Im trying to grab some links(about 5 only) from a webpage that can change frequently.
Im using:
For Each ClientControl As HtmlElement In wb.Document.Links
ListBox1.Items.Add(ClientControl.GetAttribute("href"))
Next
It gets the value of the link the files are (the hyperlink) and allows me to download the file, but I want to get to get the string assocaited with it as well
For example, A link says click here! and bring you to a page.
I can get the link to the page, but not the text click here according to my source code.