Download File Asynchronous Using Sockets?
Jun 9, 2011Download file asynchronous using sockets
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Asynchronous Ftp Client (file Download)?
Jan 9, 2010I create an automatic ftp file downloader by using FTPwebrequest. In which, is there any possible to download multiple files simultaneously using Asynchrounous and threading concept?
View 1 RepliesAsynchronous File Download And Synchronous File Download?
Apr 13, 2011What is the meaning of asynchronous file download and synchronous file download ?
I came to them while using system.net.webclient class
I know a basic meaning of tcp/ip and http .
.NET Asynchronous Sockets Packets Getting Lost?
Oct 15, 2011I made a TCP server which communicates with multiple clients at once, but I can't seem to be able to make them stable. When one of the client sends 100 packets to the server, the server receives only a few of them.Here's the client code in PasteBin. It shows how the client connects to the server and then sends 100 messages in a For loop to the server.And here's how the server handles the connection. I couldn't paste the full source as it's hundreds of lines long so let me know if it's missing any mandatory parts and I'll upload them as well.
View 1 RepliesDownload File From Http Server That Requires A Referral Before Allowing Download?
Nov 18, 2011I usually download file using following code:My.Computer.Network.DownloadFile("url of the file","filepath to save the file")But recently I encountered a site that only allow file download if you click it from its site and not via direct downloading from vb.net code.How to download file from http server that requires a referral before allowing the download?
View 1 RepliesDownload Multiple File + Progressbar But Cant Download File
Nov 10, 2011i try to download multiple file + progressbar.. but its seems nothing happened and the file is not download.. my program just function like.. when the file was error.. it will download the latest file from webhost..
[code]...
Using 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()
[code].....
Sending A File Over Sockets?
Apr 14, 2010I know there are lots of examples here on the forum, but all to difficult to understand.I have a client:
I have a client:
Imports System.Net.Sockets
Imports System.Text
[code].....
Sockets - .net Write To A Text File?
Aug 4, 2009I am very new to VB.Net, and I am trying to write a program that will write to a text file on another computer (the program is going to be running on a windows ce device). I have created the socket from an example, but it is not working. I am getting a first chance exception, but also, I just don't really know if it has connected or not. I have attached the code below:
[Code]...
Download A File With A Download Timeout?
Feb 4, 2010I want to download thousands of files from the web and save them locally. What is the most efficient way? It is important the failures timeout within 10 seconds.
Is there a better way to stream one stream into another? Maybe a smaller buffer, like 1024 bytes at a time, is more efficient for large files?
Dim w_req As System.Net.HttpWebRequest = CType(System.Net.HttpWebRequest.Create("http://blah.blah.blah/blah.html"), System.Net.HttpWebRequest)
[Code]....
IDE :: "File Download" Dialog / Way To Perform Download Operation At Back-end
Jun 15, 2010I have created a application in vb.net. I am using Web Browser control in it.With this Web Browser control I open an URL and tries to Download something, it will populates an dialog for "File Download" to Open/Save/Cancel for the file..I am downloading the .ZIP file, and it will not show the checkbox for Automatically Do.Is there any way to perform the Download operation at the backend, means it will not ask me for such options.
View 2 RepliesVS 2008 - .txt File - Write The File Path So That Someone Else Can Download My Program And File And Read The File
Feb 27, 2012Reading a .txt file in VB.net. My file path is C:UsersMyLilMulePepeDocumentsVisual Studio 2008Projectscurtain_calls.txt.
This is my line of Dim LoanOptionsFile As String = "C:UsersMyLilMulePepeDocumentsVisual Studio 2008Projectscurtain_calls.txt"
I can read the file when I run the program, but how do I write the file path so that someone else can download my program and file and read the file on their system?
Download File Read HttpResponse Content-Disposition File Name Encode?
Dec 16, 2010I cannot read filename in response header:Content-Disposition: inline; filename="
View 6 RepliesUse The WebBrowserControl To Download A Program Generated PDF File Without The File Save As Dialog
Sep 15, 2011I am writing a Windows Form program to automatically download and store generated PDF reports from a web site using the WebBrowser Control. The web site uses Ajax to link an icon back to the source aspx file which then returns a PDF file.
The problem I have is that the WebBrowser control brings up the File Save As dialog box when the PDF file is returned and I can find no way of handling this to cature and save the returned file. I have found other examples of how to manage this using the Navagating event to validate the extension of the file that is being accessed (e.g. [URL] and, if not an HTM, file then use the HTTP Web control to directly download the file. Unfortunately this will not work as the call references a .aspx page.
VS 2008 Make A Button That Download A File Using Http Show A Progress Bar About The Downloading File State?
Sep 17, 2009How can i make a button that download a file using http show a progress bar about the downloading file state?
View 10 RepliesVS 2008 Multiple File Downloader - Only Download One File At A Time
Dec 25, 2009i made downloader that will display the following items to the user. The Name of the file that the user is downloading The Url Were the file is being saved The Size of the file The speed at which the file is being downloaded And the Status. But the Problem is that the downloader can only download one file at a time. How can i make a multiple file downloader Which if the user wants to download 2 or 23 files he can.
View 13 RepliesCreating Download Link To A File On A File Server
Oct 11, 2011I'm looking for a way to (easily, by preference ;)) create a download link to a file on a separate file server.The situation is as follows: the application I'm developing (asp.net 2.0 in vb.net but I have a similar issue in c#, either solution works for me) will be run internally for a company.As is good practice, the file storage and web application are on two separate servers.I basically need to be able to create a download link to a file, the only available URL i have to access the file is servernamefolder1folder2folder3file.txt (can be any sort of file)[code]Which doesn't work for obvious reasons. It used to be set up to write that file to the application path itself and that worked perfectly, but it isn't good practice and that's why I'm changing it (or trying to).I read solutions about creating a download page and then having a table in your DB which holds the links and returns the proper web URL for download but the time constraint I am faced with unfortunately doesn't allow me to develop that.
Assuming I can provide a string with the full filepath to the file like the above, what is the easiest way to just create a link that, when clicked, downloads the document? I have 0 admin rights in this environment. That really isn't helping me. Let's assume I am given the correct link like above and have the appropriate file access rights and such.The above example does work in IE, but not in Firefox and Chrome. IE converts it to a file://servername/... link which does what it's supposed to, but FF and Chrome both actively decided that this is unsafe and have disabled it from their browsers.
Download A File From A Url And Have It Zip To A Specific User Defined File
Jun 15, 2010im going get ot the point i just wanta download a file from a url and have it zip to a specific user defined fileurl so here is my fake code please put in vb 2008 language. [code]
View 1 RepliesDownload A File From Https Site Only Know Partial File Name?
Nov 6, 2009i want to automatic file download using vb from an https site.i don't know the full file name. the file name is make up by 2 pieces, i only the 1st portion of filename.
View 2 RepliesAsynchronous Callback For TCP?
Aug 17, 2009I have this code obtaining data from a sensor that is sending a string that contains 4 numbers separated by a tab and terminated by an end of line/ I am trying to use an asynchronous callback to get the data over TCP. That problem is that the callback function is not grabbing the complete string. Sometimes it will, other times it gets half in one retrieve and half in another. I need the callback to hold off until it gets a newline character.
Code:
Public Sub readVaisala()
Dim ip As String = "192.168.1.30"
Dim portNumber As Integer = 23
Dim time As Int32 = Now.Second * 1000 + Now.Millisecond
[code].....
Set Up An Asynchronous Web Service In Asp.net?
Feb 18, 2011How can I set up an asynchronous web service in asp.net?
I want to call a webservice to post some data to a database, but I don't care if the response failed or succeeded.
I can use .net 2.0 or 3.5 only and it can be in vb or c#.
Download File With File Information And Progress Bar?
Sep 16, 2009well i'm currently making a downloader for miniclip games to play them offline. i could make the code to get the download link and i could download them getting the code to get the link took some time to collect . i could find through google how to download that link
My.Computer.Network.DownloadFile(TextBox2.Text, SaveFileDialog1.FileName)everything works fine and the file is downloaded successfully, what i need to know now is how to get file size, or how much is downloaded from the file, download speed and show the download on a progressbar
Get To A Webpage That Has A File Link To Download A File?
Jan 4, 2012I am trying to automate file downloads. Sometimes I get to a webpage that has a file link to download a file, but it is not a direct link. Instead it is a PHP request on the server side, for the file.
Is it possible to automate this using the webbrowser control, or is there another way I can do this using VB .NET?
Have Program Download File From Non-file Web Address
Feb 2, 2010I have an account with a website and I want my software to automatically download files that are generated.
I go to the website and login, and then I click a link that downloads a file. Unfortunately, I can't use the My.Computer.Network.DownloadFile function, because the first argument of that function is a file address (http:// www . website . html/file.txt). Instead of that, the address if I look at the link to download the file is something like this (http:// www . website . com/pid=1&output=csv&action=view&pview=pview).
You see how this won't work? I'm looking to use my software to automatically download the file that's available, but I can't use the DownloadFile function.
Apply Asynchronous Code In VB?
Mar 15, 2009I have a small VB.NET application built using VS 2008 and .NET 3.5.Very simply, there is a timer that kicks off every few seconds to download an XML stream from the web. I look at this stream and manipulate it.The problem I am facing is that the remote web server may not respond in a timely fashion to the following line of
[code]...
How can I implement asynchronous calls so that the my application can behave without locking up?
Asynchronous Programming Using CallBack?
Feb 1, 2010I have a class with a mthod which does a a time consuming task. I know how to start the method in a separate thread using the Threading.Thread class. What I want to do is use callback so as to have the method report its result to another method when completed. I chose to use the asynchronous Begin/End call pattern.
Private Function BeginConnect(ByVal URl As String, ByVal callback As AsyncCallback, ByVal state As Object) As IAsyncResult
'Some Code
End Function
[code]....
Asynchronous Socket Programming?
Feb 23, 2010i'm creating an Asynchronous socket programming in vb.net. i've utilised the code from Asynchronous client and server code frtom the following links:m a new user so could post only one link fully)When I try to connect the for more than one client the second client always waits until the first clientcompletes the call. i want the clients to accept calls at the same time
View 1 RepliesAsynchronous Web Services Between Different Platforms
Oct 12, 2010I am writing web services with VB.NET (2.0). The client side will use different technologies such as Java and Siebel. So, if I write asynchronous web services, is it possible for different platforms to consume them? I know it is quite easy with a consumer having .NET platform, but not sure for different platforms. Is it enough for them to have asynchronous ability, or should it be a similar platform?
View 3 RepliesForms :: Asynchronous HttpWebRequest?
Feb 12, 2010I noticed that HttpWebRequest freezes the UI while it's waiting for a web page to be downloaded:
[code]
If someone's done this before, what is a good way to keep the application responsive?
Why Asynchronous Operation Is Slow
Feb 2, 2012I am using a BackgroundWorker, an OleDBDataReader, a DataGridView to retrieve records asynchronously from an Access database. I call ProgressChanged event from the DoWork event every time I retrieve a record. In ProgressChanged event I add that record to the DataGridView and also update a label. There are about 2000 records to retrieve.I have two problems:Although I'm running an asynchronous operation, the UI remains unresponsive unless I use Thread.Sleep() inside the DoWork event (Why?). Using Sleep() method with an argument of 1 causes the process to run 20 times slower! (Process takes about 1 second if I comment out the 'Threading.Thread.Sleep(1)' line, compared to 20 seconds if I use it.) What can I do to get a responsive UI and a fast background operation (at least not 20 times slower!)?The other problem I am facing is: if I close the form while the asynchronous operation is ongoing, I get this exception (I think in the ProgressChanged event): Exception has been thrown by the target of an invocation. I tried using FormClosing event to end the process but no luck. How to fix this?
View 5 Replies