What 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 .
I 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 RepliesDownload file asynchronous using sockets
View 8 RepliesI 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 Repliesi 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]...
Imports System.Net
Public Class DownloadStuff
Dim downloader As New WebClient()
[code].....
I 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]....
I 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 RepliesReading 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?
Is webbrowser.navigate method is synchronous or asynchronous?
example:
dim ct as integer =0
dim counter as integer =0
ct+=1
wbb.navigate(""http://www.yahoo.com")
counter+=1
will counter get increased after firing webbrowser.document completed event?
I cannot read filename in response header:Content-Disposition: inline; filename="
View 6 RepliesI 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.
How can i make a button that download a file using http show a progress bar about the downloading file state?
View 10 Repliesi 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 RepliesI'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.
im 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 Repliesi 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 Replieswell 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
I 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?
I 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.
We are trying to find a way to download a file (PDF) that is attached as link to a web page. In our VBA application we were using URLDownloadtofile but that command has seemed to stop working and we think the company changed the proxy setup. We believe that the system needs a log in to work correctly, so we decided to try it in VB 2005. I was trying to find out if there is a way for me to use a similar command, and I am hoping that if I stay attached to the web browser active session that I'll be able to bypass the problem.another way to do it that would work in VBA that would be fine too. The benefit to the VBA is that all of the code is written unlink my VB 2005 app which is only partly done.
View 6 RepliesI have the following code to download the file from FTP. But from the code below, it had set the destination to C: constantly. How should I change the code so that savefiledialog can be prompt and the destination will be the one that choose from savefiledialog??
My.Computer.Network.DownloadFile("ftp://abc.my.com/IN/1.txt", "C:1.txt", "abc", "password")
I'm trying to figure out what code I can use in vb.net that will allow me to download a file form any website URL I use. The URL is not on my web server, it will be for other websites.Is this possible? If so what type of code would I use?
View 5 RepliesI am using Network.DownloadFile to download exe file but it didn't fully download the file i am only getting 1kb of the exe file the code i use is [code]...
View 1 Replieshow can i download a file in VB.net, I'm using VB.net 2010 Framework 4
View 3 RepliesHow to download a file in VB
View 5 RepliesI'm using the following code to allow users to download a file.
Dim myFile As FileInfo = New FileInfo(strPath & strFile)
Response.AddHeader("Content-Disposition", "attachment; filename=" & _
Replace(myFile.Name, ".resources", ""))
Response.AddHeader("Content-Length", myFile.Length.ToString())
Response.ContentType = "application/octet-stream"
Response.WriteFile(myFile.FullName)
This method has the annoying problem that any code after this line does not execute correctly.
It pretty ancient code, so I'm guessing there are probably better ways to do this these days.
Suggestion in either in C# or VB.NET is acceptable.
I have a class to handle file download link ASP.NET project like the following:
Public Class AIUFileHandler
Public Shared Sub DownloadFileHandler(ByVal fileName As String, ByVal filePath As String)
[Code]....
How can i download a file from an ftp server, i can upload but i dont now how to download.and the ftp file is raw and raw = not on a download page just on the server
View 12 RepliesI need to download a file from web i.e https:www.xxx.com using vb.net and save it to C drive of system.
Below is the code :
Dim URI As String = ftpHost & ftpFile
Dim oRequest As System.Net.HttpWebRequest = CType(HttpWebRequest.Create(URI), HttpWebRequest)
oRequest.Credentials = New System.Net.NetworkCredential(userName, pwd)
[code]....
But this is not reading anything.