Well i am coding a Application and it is almost done i just need to finish the Download part. Listing Files and so on is all done but now i need to Download the File which i know how to do but i dont know how i can read the Bytes got and how much is left. It is Downloading from a FTP.
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I need to move bytes in byte array.
Dim data() As Byte = {&HE4, &H96, &HA3, &H47, &H42, &H4A, &H80, &H90}
I need to make so that the first two bytes would be deleted and the rest moved to the first one's for example:
Delete: E4, 96
Move: A3 and all the rest to the place where E4 was. (|A3 = 0|,|47 = 1| etc.)
In C++ it's possible to do it like that:
unsigned char data[]={0xE4, 0x96, 0xA3, 0x47, 0x42, 0x4A, 0x80, 0x90};
data+=2;
how to do this in VB.Net without making a new byte array and then using a loop to put the all bytes in that place - it would be too long and would use more resources.
Have a small problem, but I can't seem to solve it. Hopefully someone could help me out.
While downloading a file from my server I have a progressbar which should scroll continuously, but it doesn't do anything.
The code I use:
vb.net
Private Sub btn_download_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_download.Click
With progress ' progress is the name of the progressbar
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I wonder how to make so if I press a button, then I want the mouse to move and click, but not before the progressbar is 100%. The progressbar is interconnected with a webbrowser.
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I am trying to compare two files and I do not know why, the filed downloaded to be compared, is always only 44.898 bytes, despite of being bigger... what am I doing wrong, I post the
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I've been using the following code to download a text file from the web. It only downloads the first 100,000 bytes of the file which is no good if the file is big. The size of the file I'm downloading can vary from day to day, so I need to be able to download a text file of any size.
Dim wr As HttpWebRequest = CType(WebRequest.Create("http://sooty.postalgroup.co.uk/tempmac/nat-import.txt"), HttpWebRequest)
Dim ws As HttpWebResponse = CType(wr.GetResponse(), HttpWebResponse)
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How can i return the value? using bytes?
I'm trying to gather the size of a file to determine whether or not it's too large for my application to download.I currently have:
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is someone know how to download files from each link in listbox and using progressbar1 as size file downloaded..?
View 6 RepliesI have a class that downloads a specific file from the net.This class uses a BackgroundWorker. I tried to implement kleinma's Download Files From Web With Progressbar [URL]../showthread.php?t=396260), but I'm having difficulties making it work. I'm including a test project, so if someone is willing to take a look at it, it would be great .
The part I'm having trouble with is updating the progressbar and progress label. The errormessage I receive is in Norwegian, but it has something to do with threads. I suppose I should use Invoke or something, but I don't know where to start..
What exactly does this line do?
i = stream.Read(bytes, 0, bytes.Length)
Does it read the entire message string sent by the client? I have a line to write to the stream later in the code and that does not seem to be sending anything back to the client, although the code around is excuting.
i = stream.Read(bytes, 0, bytes.Length)
While (i <> 0)
Try
' Translate data bytes to a ASCII string.
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I'm downloading 3 files from the server using wClient, which goes ok, but I was wondering if the progressbar% is correct.
vb.net
Private WithEvents wClient As New WebClientPrivate WithEvents w2Client As New WebClientPrivate WithEvents w3Client As New WebClient wClient.DownloadFileAsync(New Uri("http://...w2Client.DownloadFileAsync(New Uri("http://...w3Client.DownloadFileAsync(New Uri("http://...' progressbarPrivate Sub wClient_DownloadProgressChanged(ByVal sender As Object, ByVal e As
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i 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..
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i need to get a progressbar to move 1 "inch" every time my timer restarts... and that the max value should be the total sum of hour...min...sec
This is what ive got sofar:
TotValue = Val(Hour.Text) * Val(3600)
TotValue = TotValue + Val(Min.Text) * Val(60)
TotValue = TotValue + Val(Sec.Text)
This calculate now i want those seconds to be a the maximum size of the progressbar... And to make it go one step everytime my timer restarts... =)
i have a form with 14 textboxes and a progressbar. the text in textboxes are updated 1 by one...how can i make the progressbar move when 1 text box is with text?
View 3 RepliesI want it to do is that you input a string, then you select an algorithm (Theres only going to be one RijnDael) then you input a key, then the Initialization Vector comes from "txtIV.text" then you select the key bytes and the block bytes from the numeric up/down, then you either encrypt or decrypt.
View 1 RepliesOk i am having some issues designing a base-class to handle generics.Caveat is i need to restrict the type put in as a Numeric type, specifically Int16, Int32, or Int64 (Short or Long).I know you can do Of T as {Structure} but i dont want to select the key bytes and the block bytes from the numeric up/down.
View 2 RepliesI keep getting a ProtocolViolationException "Bytes to be written to the stream exceed the Content-Length bytes size specified." on the following code.I've tried setting Content-Length numerous ways with no success.
Dim url = "https://domain.com"
Dim req As WebRequest = WebRequest.Create(url)
req.Method = "POST"
req.ContentType = "application/xml"
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Now I upload update to a share folder inside the company network I have full
Permission access & everyone read onlyas any one out side the company can't use the program so there no password on the share folderbut I need now to protect the share folder as I have to use real IP on the database connection to allow the company branch's to access the database
I created a text file contains 4 bytes of data
AABBCCDD
I just want to read the first 2 bytes (AABB) to execute it with my program.
Then I'll need to read the last 2 bytes (CCDD) for another computer routines
What does this error mean? I havent modified anything in the designer code, but its giving me an error? WithEvents variable 'Move' conflicts with event 'Move' in the base class 'Control' and should be declared 'Shadows'. The error relates to Friend WithEvents Move As System.Windows.Forms.DataGridViewCheckBoxColumn
View 1 RepliesProbably missing something silly here, Her eis what my display looks like Sending image...(401303) I would prefer it displays as Sending image...(391 kb)
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in vb 2008 or higher :how do i make the progressbar look like the progressbar in xp when i use win7?
View 3 RepliesThis is how i convert Bytes to KB etc.. vb.net
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I have a rom file that I want to display data from The strings I have already retrieved and displayed the problem now is the image. I have read all the bytes for the part of the file that contains all the data I require EN_Title_Icon which is 2112 bytes. The image data is offset 32 byes in EN_Title_Icon and is 512 bytes, How do I loop the bytes and put them as pixels in the picturebox or a bitmap? And can i use the pallet data that is the 32 bytes after the image data? Here is some info on the image
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I'm doing a job in background (another thread) and do not know its progress, so I can't put values in progress bar. I'm looking for a progressbar that is just 'walking' from left to right and vice versa, until the job is finished (Microsoft uses it sometimes). Where can I find that progress bar?
View 2 RepliesIs it possible to add a progressbar to a splash screen, that automatically updates until the application is loaded?
View 9 RepliesI have a form with an Adobe PDF reader control.I point to a specific PDF I want to load when a button is clicked. The PDF is 28 Megs big and takes some time to load into the reader.I would like a progress bar to to show (like a showdialog kind of thing) so the user does not click all over the place and thinks the app is static.I have searched and read all about the progressbar and there are many articles dealing with downloading and moving files around but nothing in terms of file loading and how to get a progressbar to reflect the status of the file being loaded.[code]
How would I update the progressbar1 control to reflect the time it takes to load? I checked the AxAcroPDFLib Namespace and found no "progresschange" type of functions or events.Can some one please help a new guy out? I am fairly new to vb.net so please be as specific as possible.
I have to write a program that retrieve record from database, but everytime the screen will look like getting hang when getting large row record.I using the backgroundworker to prevent screen hang when retrieving record from database but why my progress not working when in progress? It only will show when the transaction done..
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[code] How come the ProgressBar's value stays the same?
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