I have a chunk of code that downloads a file using DownloadFileAsync. If I disconnect the internet the button clicks and nothing happens. I want to throw an exception if the internet is down and also if the download fails. [code]
View 12 RepliesIs it possible to resume a download with DownloadFileAsync?
If not, then how can I asynchronously download files and resume them?
I 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 RepliesHow do i exactly check internet connection speed.I have searched around google and found out a method w/c will Download a file like 1mb size, then it will calculate the speed.
View 1 RepliesOkay, I will be passed in an internet address that resolves to a file of some type (.xml, .zip, .mp3, whatever). From inside my VB .NET 2005 program, I need to transfer the file down to the local machine... preferably with events so I can update the screen to show download progress. I also need a way to detect if the file specified by the user actually exists, and retrieve it's file size and compute an estimated download time.
View 1 RepliesI have looked at many other examples that show how download a file from the internet however, these examples don't work because the website I want to download these files from is secure so I don't know how to do this. I am using visual basic express 2008.
View 16 RepliesI'm working on a website in which a user enters a name and then presses a button that prompts the server to create a pdf file according to the information provided, and then sends the file to the user.
I'm testing the website on my laptop without IIS.I needed the pdf to be hebrew and couldn't find a pdfwrite with vb on hebrew; instead, I create a MS Word document and then convert it to pdf using the code below.
This works fine on Firefox, Chrome, and Safari, but on Internet Explorer the page disconnects before the download. It disconnects when the create word statement is executed.
[Code]...
I am creating an update program to go inside of another program I am designing, and I was curious as of how to download the new (updated file) from the internet. Here is the code I have so far.
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]....
in my project i want to download 1 data base file on click of a button to a specific folder and in case if the file is already there replace it.
actually i want to provide a button to update database which will download the new database(MS Access file) and replace any old.secondly will it be possible that instead of replacing, it will rename the old file(MS Access file)
[Code]...
Has anyone a tut for me how i can make a download manager for my internet browser CODES
View 7 RepliesHow can I let people download my software that i have made. the furthest I have got is that people can go to google docs and download the .exe file. But they have to choose a place to save the file and create a desktop shortcut themselves. How do I do this: Can I use SharePoint?
View 2 RepliesI need to somehow download a ZIP file from the internet using Visual Basic.Here's what I currently have:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim NewAppData As String
[code]....
what i want to do is download a file off the internet. but what i want to do is for it to make a folder in program files called for example downloaded contect here and for it to download the file there is that possible so when i push download it will add the folder and download the contents to that folder is that possible
View 3 RepliesDetails:
1- Show Soruce IP.
2- Show Destination IP.
3- Show Size Of Data Downloading
4- Show Type Of Data Downloading(.exe,pdf).
3- Make Button(Start,Resume,Stop).
i have a program that calculate a download and up load speed for internet , and i'm doing this by the following for download
1. but the whole code in a timer with interval 1 second
2. calculate the total byte recieved and store it in a variable (s)
3. calculate the new value of total byte received and store it in (s1)
4. s2=s1-s
5. s2 represent the difference in an interval within 1 second is that a download speed ?
i test it with downloading some files from internet using mozilla firefox the values is so close to each other but is that the right way to measure the speed ???
I need to download files from internet without using FTP, here's my idea:To check version of the program and also download updates.So firstly, when the user enters the splash screen there is a timer which will check updates (downloadTimer) so then downloadTimer starts to download this txt file http://localhost/version.txt and then when its downloaded (and replaced the old one that was on the computer already) and then after that, read the file. If the version.txt contains version 1.0 then pass the check and splash screen closes, main form opens, else then msgbox ("Please Wait!" & vbcrlf & "Downloading updates") and then download updates with the same way from downloading version.txtOh! and also when the file is downloaded (version.txt) save it to "c:programMyApplicationversion" downloading the file without using FTP (if there isn't any other way i could use FTP).File reading could be made with an IO.FileStream thingy.So how do i do the download part?
View 2 RepliesWhen I click programmatically on a Download link in a webpage, IE 9 does not allow me to automatically download, I have to click on Open, Save or Cancel.
How can I make the selection (Open, Save or Cancel) programmatically?
At the moment I am using the sendkeys command, but, as we know, it is not reliable.
I also do not want to program a mouse click because it is cumbersome and because even in full screen one has to factor in the zoom factor.
I am using SHDocVw.InternetExplorer
The Webbrowser will also do.
My idea is that i want to create a auto-shutdown app that will allow me to auto-shutdown after downloads have completed using IE6. Third part download managers have these built in for example however i would like to make one for IE download dialog. Any ideas on how do start. Detect when a download is active, set time, autoshutdown etc.
View 3 Repliesi tried to download some file from internet but while it downloading, my program just got stucked..its seems downloading the file while the program got stucked.. after download file finished, the program is running as usually..how can i make the program unstucked while downloading file? how can i use ProgressBar1 on downloading file?
View 3 RepliesIve been successful in opening programs like internet download manager from vb.net application using following [code]...
View 5 Repliesi have a audio program that will play some mp3 files from a folder. but the audio files together take up about 1 gb. it is possible to let my program download the files from the internet after it is installed on a computer. to a specific folder..?
View 3 RepliesI'm trying to create a simple file downloader (with GUI). I'm pretty new to Vb.net and I didn't find any usefull information about this in the books I own. All tutorials in the wild are making me more frustrated, since the snippets I use, in most cases, are different classes.What should I use? HttpWebRequest/HttpWebResponse or FileWebRequest/FileWebResponse?How do I save the ResponseStream to a file ?Is it possible to use ResponseStream to define the kind of File (FileInfo) Class to get basic file information (size, extension, etc) is it generally neccessary, if GetResponse().headers gives you most of this info ?
My code, which sucks, because I do not know how to realize the saving....
Private Sub btn_downloader_Click(ByVal sender...) Handles btn_downloader.Click
'e.g http://codeigniter.com/download.php'
Dim fileUrl As String = txtBox_url.Text
Dim webUri = New Uri(fileUrl)
[code]....
but I don't know what the buffer is and what it is for. Should I set some static values or any dynamic which deppends on Stream-data ?
How can I check for internet connectivity? I can't use the My.Computer.Network.IsAvailable, because that one returns true also when you only have a local network connection and no internet connection.
View 10 RepliesI have no idea at all of how to get a simple True/False function to tell me if the user has any sort of internet connection
View 14 RepliesI need to check whether If the Internet Connection Is available or not
If My.Computer.Network.IsAvailable = True Then
Return My.Computer.Network.Ping("8.8.8.8")
Else
Return False
End If
Above code returns Whether the PC connected to the internet, But I can't Check It through out the Software, I am only Having Single Form.
Im trying to check my internet connection using just a button how do i do that?
View 2 Repliesade an application and it uses internet to connect to my private server database and send email sometimes.. and its working great until now that I noticed e bug in it When im not connected in internet and working with my application and then my application tries to send email or connect to my server database I got my application crashed so what I want to do is to make my application first detect if it has internet connectivity and then to connect to my server or send any mai
View 8 RepliesI'm writing a Silverlight 4 application and would like to check when opening the installed out of browser application, whether there is a valid internet connection (to then download some data from my website). I realise that I could put a try catch around a WebRequest but that seems a bit hacky to me.
EDIT: What I meant by valid internet connection is just connected to the internet
Basically I want to have a picturebox which shows an embedded resource if not connected to the internet, and an online image if connected to the internet.I assume this can be done on the form load event, I just don't know the code for it. Basically this is the logic though:
-If 'http:/[url].... is available (therefore connected to internet)
-Picturebox1.Image = http:[url].....
-Else[code].....
How can I code that properly? Would putting it in the form load event work?
How I can check if the internet connection is working or not? i have to check every few seconds without getting stuck.
View 9 Replies