VS 2010 Picture Download (Webclient) Incomplete?
Aug 9, 2011I am trying to download a 163 KB jpg file from the web with Webclient. The dimensions of it are ~332 x 491 pixels.
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Calculate The Download Speed If Use A Webclient To Download Files Async?
Jun 10, 2009how can I calculate the download speed if I use a webclient to download files async
View 2 RepliesUsing A WebClient To Download A File, But Being Able To Get The Download Information?
Oct 23, 2009Imports System.Net
Public Class DownloadStuff
Dim downloader As New WebClient()
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Download Zip File From Web Using Webclient?
Nov 23, 2010I am trying to use system.net to download a zip from a website.I am using the following code .[code].....I am doing something wrong here.The zip file is getting downloaded but the size is not correct.How to know the size of the file I download and assign to my buffer .
View 1 RepliesWebClient Download / How To Detech Bad URL
Feb 27, 2012We recently started playing with a vb.net 2008 WebClient on a Windows 7/64 workstation to download files from a web site to the local machine.It works except that we cannot detect if the URL is invalid. It doesn't throw an error. If we use Async it does trigger the Download Complete event but there was no file since the URL was incorrect.Is there a way to detect an incorrect URL?I also noticed that the events does not give you either the URL or the file?
View 1 RepliesCalculate Download Speed Webclient?
Mar 31, 2011how can I calculate the download speed if I use a webclient to download files async?
View 4 RepliesVS 2008 WebClient Download With Progress Bar?
Dec 3, 2009How would I make the Progress Bars Value = The Percentage of a file being downloaded using a Webclient?
View 2 RepliesCommunications :: WebClient Webpage Login Then Download
Dec 4, 2007I've been trying for a while to use a method I've found on the net to login to a webpage then download zip files off the page.Here is what I am doing:
Code:
strURL = "https://www.someurl.com/"
Client = New WebClient()
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Download Multiple Files With Webclient.DownloadFileAsync?
Nov 14, 2011I have a desktop application from where i want to download files from the web server. when i am downloading a single file then there is no problem. but when i want to download more than one file there is an error like "WebClient does not support concurrent I/O operations".
View 6 RepliesDownload Secure Page Using System.Net.WebClient?
Mar 13, 2009Dim wc As New System.Net.WebClientGamerTag.Replace(" ", "+")wc.Credentials = New System.Net.NetworkCredential(Email, Password, "http://live.xbox.com/en-US/profile/profile.aspx?GamerTag=" & GamerTag)Dim fx As New System.IO.StreamReader(wc.OpenRead("http://live.xbox.com/en-US/profile/profile.aspx?GamerTag=Dark Slipstream" & GamerTag))Dim str As String = fx.ReadToEndfx.Close()
The above code will open a webclient, set the credentials (possible error?), create a stream of the entire page, and then load it into a string (str).I then scan through and look for what is needed (Gamerscore, Motto, Bio, etc)-in this case.This doesn't work however, it doesn't sign in.
VS 2008 WebClient Slow Image Download?
Jul 15, 2009I have a weird bug with webclient. I made an app a while ago which uses webclient to download a small thumbnail image.. and I rememeber when I first made it, the first time webclient was used to download the image it always took 15 sec+ to download it, but after the first it always downloaded quickly (in like 1 sec) .. but then the problem went away for me and it always downloaded fine.but now someone else who uses my app is having the slow image download problem apparently around 50% of the time it downloads the thumbnail images. so does anyone know what might be causing this? As I said, I don't have the problem any more on my comp - but I don't know why :s
View 5 Replies.net - Page To Download A File Requires Processing In Webclient
Jan 11, 2011I'm trying to use a java servlet in a 3rd party tool's web interface (CA service desk) to invoke it's download file functionality using a webclient in vb.net. The trouble is the text stream from response is markup and not the acutual text file stream.
It's like the page is redirecting to another page which actually presents the file for downloading. I have no idea what the redirected page URL is.
Is there a way I can process this redirected page in order to get at the download using a system.net.webclient?
Download Multiple Files With A Wildcard Pattern Using Webclient DownloadFile?
Jun 10, 2011How to download multiple files with a wildcard pattern using webclient DownloadFile? Like project* from [URL]..
View 1 RepliesTake Url Given By User From Input Box / Create New Webclient To Handle Download asynchronously
Jun 13, 2012I'm trying to code a program that can download multiple files at once (on different threads of course).I have created a custom listview component that will allow me to add a progressbar directly to it.What my real question is, how can i take a url given by the user from an input box and create a new webclient to handle the download asynchronously and also report the progress without disturbing all of the other downloads in progress?
View 10 RepliesUsing WebClient Class, Put Information Into Search Bar. Click Button And Download First Link Shown?
Nov 20, 2011Using the Visual basic browser I would simply, at least for the input of information.
If WebBrowser1.Document.GetElementById("Input") Is Nothing Then
Else
Dim txt As HtmlElement = WebBrowser1.Document.GetElementById("Input")[code]....
But in the case of WebClient class, How do I do this ?As I have been told this is so much faster.
WEBCLIENT Not Working - Not Get Text File From PHP/MYSQL Server - Invalid Username/Password Or No List Download Permission
Jun 1, 2012I do the same thing with URLdownloadtoFile: IT WORKS.Wih the WEBCLIENT part I just DO NOT GET the Text file from the PHP/MYSQL server: I only get message "Invalid Username/Password or no list download permission: ||"
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim urlStr1, urlStr2 As String
Dim fileToStoreStr, fileToStoreStr1, fileToStoreStr2 As String
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Download A Captcha Into A Picture Box?
Jan 3, 2010I have an app that will sign me up for about 20 websites at once and each one requires a captcha to prove your human (which is cool I don't mind typing them in). I have a form 2 that is going to pop up with all the captchas viewed in picture boxes with textboxes for me to enter my text and submit buttons to enter the captcha to the website.The only issue that I am having is getting the captcha to view in the picture box. It refreshes everytime I get it to showup.I had it working previously but my hard drive crashed and I lost the code and the app.From what I was able to put together previously I was able to grab the element by type and if the src had [URL] then to put the source into the picture box.I tried to rework it all day yesterday and I just keep getting the code refreshing.
Here the code.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
WebBrowser1.Navigate("https://secure.diigo.com/sign-up?referInfo=http%3A%2F%2Fwww.diigo.com") 'Website that has the ReCaptcha
End Sub
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Download A Picture In A Picturebox?
Dec 28, 2010I'm using vb.net 2010 framework4 I wanna know how to load a picture from the internet into a picturebox for example: i want the picturebox to load the following picture:[URL]
View 7 RepliesVS 2010 Get The Innerhtml With Webclient?
Dec 8, 2009i got the function, but it only can get the outer html, any method or suggestion to get the innerhtml with webclient?
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VS 2010 ProgressBar With Webclient Downloadstring
Jan 19, 2012How can I integrate a ProgressBar in this code? It takes normally some seconds (9-10), but my program looks like a "crash", for this reason i want use a ProgressBar
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VS 2010 - Speed: WebClient Versus Socket
Apr 25, 2012I make a lot of programs that require an internet connection to download things from the web.At the very beginning, I used WebClient, as I didn't know Socket & how it worked.But now, I use Socket all the time, altough it's more lines of code. It seems to work faster then WebClient.I am interested if this is really true & why WebClient is slower (so is HttpWebRequest) then just a Socket.I've setup 2 threads which starts on the click of a button (WebClient thread starts first), the Socket beats the WebClient by just some milliseconds, but still.Each way has it's advantages & disadvantages, e.g.: if you use Socket, you need to write the header yourself & parse the response header.My question is, which one do you prefer & why ?Do you know why WebClient & HttpWebRequest are slower then Socket, as I assume, WebClient & HttpWebRequest both use tcp to download the things.
View 2 RepliesVS 2010 WebClient OpenWriteAsync Not Updating File?
Aug 8, 2011I'm using the WebClient class' OpenWriteAsync function, and I'm having a little trouble with it. I want it to write some information to a .txt file I have uploaded on my FTP. I made it display a message after it has completed doing so, and the message does indeed pop up.However, I've checked my .txt file numerous times, and it hasn't actually been e Here's some of my
Dim otherclient As New WebClient()
AddHandler otherclient.OpenWriteCompleted, AddressOf WriteCompleted
otherclient.OpenWriteAsync(New Uri(URL))
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VS 2010 WebClient.DownloadString Took Too Time If Server Is Down?
Jul 6, 2010working in an intranet sit .downloadString took less than one second,but some times the server is down (maitenance or so on) and the the result took maybe one minute or so.Is there any way to set an lower interval?for example, if the server doesn't respond in 9 seconds return empty string, or so on.
I've read some about async comm but not sure what is the best solution.
VS 2010 - WebClient Async Freeze Up When Fetches Data
Dec 1, 2011I am trying to get my program to read async so it doesn't just freeze up while it fetches the data. I have:
SR = New StreamReader(WC.OpenReadAsync(New Uri(url)))
Dim html = SR.ReadToEnd.ToString
It keeps throwing the error "does not produce an expression". I remember trying this in the past, only to have the same error.
VS 2010 WebClient.DownloadFileAsync - 403 Access Forbidden Error
May 1, 2010I'm trying to download a simple text file from a web server. It's easily accessible from the web browser and I can download it from the web browser. However, whenever I use a WebClient to download the file, I get a 403 Access Forbidden Error! I'm not sure what I'm supposed to do. I haven't come across this kind of error in programming before and I'm not sure what I'm supposed to do to get around it.
View 2 RepliesVS 2010 WebClient Get Error When Converting String To System.Net.IWebProxy
Sep 21, 2011I am getting an error with this Dim Web As New WebClient Web.Proxy = "69.196.16.237:62159" It says runtime errors may occur when converting string to System.Net.IWebProxy What does that mean?
View 9 RepliesVS 2010 WebClient.UploadFileAsync : Including Both Server And Client Examples?
May 13, 2011have any examples for UploadFileAsync? Including both server and client examples?
View 1 RepliesVS 2010 Why Does WebClient.DownloadString Remove Part Of HTML's Source
Nov 13, 2011When I go to webcrawler.com and search for something, then look at the source code, a chunk of HTML similar to this displays the search results:
<div id="webResults">
<div class="searchResult webResult">
<a class="resultTitle" data-icl-coi="540" data-icl-cop="results-main" href=[website] target="_blank">[title]</a>
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But when I use WebClient.DownloadString to read the source code to a textbox, I only get this:
<div id="webResults">
</div>
There's nothing. All of the webresults have been removed.How come I can view the code in my internet browser but not on my application?? I even used an InStr method to confirm that the results weren't contained in the generated code.
Incomplete Query Of Dbf Using Oledb?
Mar 26, 2009I'm trying to connect and query a .dbf dBase table. I'm fairly certain I've got the connection string formatted properly, because I am no longer receiving errors that I can't locate the table.I've tried everything I can think of, and nothing seems to work to make a valid query. I've tried all sorts of syntax changes around the table name (which is just 'buildings'...nothing fancy). The error is a syntax error with an incomplete query on the executereader line.
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.net - Sending Jpegs By Tcp Socket Sometimes Incomplete?
Apr 17, 2010I've been working on a project for months now (vb 2008 express). There is one final which I can't solve.I need to send images to a client from a 'server'(listener). The code below works most of the time but sometimes the image is incomplete. I believe this might be something to do with the tcp packet sizes varying, maybe limited by how busy it is out there on the net. I have seen examples of code that splits the image into chunks and sends them out, but I can't get them to work maybe because I'm using a different vb version. The pictures to be sent are small 20k max.
Any working code examples would be wonderful. I have been experimenting and failing with this final hurdle for weeks.
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