Copy A File In The Background And Monitor Its Progress?
May 24, 2012
i am trying to figure out how to copy a file in the background and monitor its progress.
in VB6 i used the FileCopyEX API
so i wrote a quick application in VB6 that used the API, then opened it in VB2008, so it ran the upgrade wizard
i get one error message after the wizard runs
'UPGRADE_ISSUE: Declaring a parameter 'As Any' is not supported. Click for more: 'ms-help://MS.VSCC.v90/dv_commoner/local/redirect.htm?keyword="FAE78A8D-8978-4FD4-8208-5B7324A8F795"'
Public Declare Function CopyFileEx Lib "kernel32.dll" Alias "CopyFileExA"(ByVal lpExistingFileName As String, ByVal lpNewFileName As String, ByVal lpProgressRoutine As Integer, ByRef lpData As Any, ByRef pbCancel As Integer, ByVal dwCopyFlags As Integer) As Integer
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Nov 15, 2011
Alright, so in yesterday's thread, I asked for the codes to copy the contents of a directory to a separate directory. The code:
My.Computer.FileSystem.CopyDirectory( , , )
worked fine.However, I have decided that I wish to add a progress bar into the mix so that the user can see the progress of the transfer copy. So far:
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Feb 3, 2012
I am wanting the most efficient way to copy a file with a progress bar updating the copy percentage.
This is the standard copy code I am using:
System.IO.File.Copy(source,target)
This is very fast and efficient. However, I cannot report the copy percentage.
I have tried many functions that read and save a file by opening up the filestream and then looping while reading/writing the data. This enables me to report the progress.
Here are the functions that I am using:
Public Sub SaveBinaryFile(strFilename As String, bytesToWrite() As Byte)
Dim position As Integer = 0
Dim BufferSize As Integer = 4096
[Code]....
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Jan 6, 2011
i have this code to copy a file from one location to another but i am wanting to add a progress bar to show the % of the files copied, after doing alot of reasearch on the interent i carnt find any examples out there which does what i want it seems the way i am copying the file it would only increse the progress after its finished copying each file insted of increaseing the % of the bar per say 1kb this is my file copying
[Code]...
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Jul 7, 2010
get the progress bar show the progress of the batchfile running in the background?
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Aug 11, 2009
Here's my
[Code]...
During the file copy, Label2 isn't being updated. In fact, my whole form goes non-responsive. How can I fix this?
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May 23, 2011
I have created a simple Backgroundworker process to copy a large file (30GB). Is there any way to report the progress of that file copy?
I'm using System.IO.File.Copy to perform the copy. I've seen a few posts/blogs that suggest comparing the bytes copied with the size of the source file but that seems like a huge overhead in this case.
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Jun 26, 2009
I have a function that I use to copy files from one location to another.I want to incorporate a status bar to illustrate the progress of copy.I am assuming that I need to put additional logic after my File.Copy stmt below. [code]
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Mar 4, 2009
I have a function that I use to copy files from one location to another. I want to incorporate a status bar to illustrate the progress of copy. I am assuming that I need to put additional logic after my File.Copy stmt below.
Public Sub CopyFiles(ByVal sourcePath As String, ByVal DestinationPath As String, ByVal fName As String)
If (Directory.Exists(sourcePath)) Then
[code]......
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Aug 17, 2011
i want background worker to use file copy, how?
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Feb 26, 2011
Bit of a Noobie question here, I have a process, for example[code]...
I need to launch the process from within code in a form or module and I want to monitor its progress, for example with a progress bar.
The problem I have is that in order to use a 'progress form' I have to show a form modally, then kick off the process (usually with a button) and allow a cancel option.
I want the form to show then start running automatically without user intervention.
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Oct 4, 2006
im still working on my DVD Player.. but ive run into some problems..I want to implement a trackbar (any way to make the background transparent btw? Really ruins my design), and im wondering how i can make it track a DVD movie progress? I Havent used a trackbar before, and im having some troubles finding any good documentation on it. So anyone? (using the MSwebDVD component)
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Dec 5, 2009
I want to monitor all windows copy to clipboard evets and add the objects that are copied to the clipboard to a list in my application.. how can I do that?
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Jun 7, 2012
my backgroundworker as I just cant get it to work. Basically I have a backgroundworker which does a few tasks but I'm trying to implement a progress bar and a label. I'm going to set the maximum value of the progress bar to 10 and then have it updating as I move with each task, also I'm thinking of a label with the progress bar which will display the progress ie
[Code]...
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Oct 7, 2009
I'am trying to make app that will show every file in C:[code]Now how can i add progress bar with the background worker.
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Jun 7, 2012
I have a backgroundworker which does a few tasks but I'm trying to implement a progress bar and a label. I'm going to set the maximum value of the progress bar to 10 and then have it updating as I move with each task, also I'm thinking of a label with the progress bar which will display the progress ie [code]
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Jun 12, 2011
I am developing a VB application along with MS Access... When I initially load my form I need to put my application to sleep for 3 seconds or else data wont load properly. So for this 3 seconds I would like to show a progress bar displaying a message "Please wait" I tried using background worker but did not find any success... I have gone through many tutorials but for some reason could not accomplish the task.
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Oct 6, 2011
I just can't see what I am doing wrong here, since I have implemented a progress bar into my background worker it no longer only runs the once (in some cases I have seen the coding within the foor loop run 6 times)
My coding:-
My progress bar max value is set to 10.
BGWorker Do Work Event
[code]....
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May 28, 2012
I am using a background worker to update a progress bar while inserting data in a database.
Private Sub InsertintoDB_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles InsertintoDB.Click
BackgroundWorker1.RunWorkerAsync()
[Code]....
the error i m getting is exception has been thrown by the target of an invocation.
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Nov 4, 2009
I have a function that requires 10-15 min to run. Due to sheer amount of time required to run this function, my form freezes and the user is left clue-less about what is happening to the program. I understand that this problem can be overcome using Background class and Progress bar.
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Apr 6, 2011
I have searched the forum and found several forums related to the backgroundworker thread but have been unsuccessful in finding my answer.My objective is to display an animated gif or progress bar while the program is executing a particular method which can take upwards of several minutes to complete. I cannot get the second thread to run the progress bar while the main progrem is executing the time consuming method. I have created a demo based on another thread and can't seem to get it to create two threads. I was attempting to get the backgroundworker to execute the progress bar while my main code runs on UI thread.
[Code]...
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Oct 30, 2009
How to use the background workers in my case. while my web cam is trying to start i want to show a progress bar.
Private Sub strcam_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles strcam.Click
mycam.startCam(PictureBox1.Handle.ToInt32)
End Sub
I tried many methods to achieve that without any luck. I tried also application.doevents().
I have a gif image that shows a circle go round like the one on vista. However when i use the application.doevents() the circle is shown BUT it start go round only when the web cam starts....I don`t know what to do.....I need somehow to perform two tasks at the same time. Can bagroundworkers used in this case or i need to do something else?
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May 9, 2010
I'm creating a program that can run a large audio file (*.wav) in a seperate thread using the background worker, the only problem I'm having is trying to report the progress using a progress bar. When I try to report progress nothing happens. here is the code below:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
BackgroundWorker1.RunWorkerAsync()
[Code].....
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May 5, 2009
I am using the code below to login to a softphone. However, the login progess is a long process as there are many things that have to be initialized and checks to be made, I have only put a few on here, as it would make the code to long to post.In the code below I am checking if the CancellationPending if the CancelAsync has been called in my cancel button click event, before doing each check. Is this correct? Also if the check fails I also call the CancelAsync and set the e.Cancel to true.
Private Sub bgwProcessLogin_DoWork(ByVal sender As Object, ByVal e As DoWorkEventArgs)
'
' * Perform at test to see if the background worker has been
[code].....
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Mar 15, 2010
I was looking for a solution to run a lengthy job (looking for files on the fixed drives) withouth freezing the UI, and saw that using a BackGroundWorker control is the recommended solution.
Problem is, I don't see its ProgressChange event being triggered:
Imports System.IO Imports System.Text.RegularExpressions
Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Button1.Enabled = False
[Code]...
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Jun 27, 2010
This is what I want, I have 12 progress bars and I want to run a background task to ping IPs and if it can ping them it starts a timer is this imposable to do?
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Feb 4, 2012
I am wanting the most efficient way to copy a file with a progress bar updating the copy percentage.
This is the standard copy code I am using:
System.IO.File.Copy(source,target)
This is very fast and efficient. However, I cannot report the copy percentage.I have tried many functions that read and save a file by opening up the filestream and then looping while reading/writing the data. This enables me to report the progress.[code]...
What is the best/efficient way to copy a file showing the copy progress?
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Mar 19, 2010
I copied the code here and translate the code to vb [URL]it is working fine but there is one small problem but I cannot solve? Here is my code: SyncClientVB Another Source The scenario is... the progress is reported by an event (OnCopyingFile event)
Public Sub OnCopyingFile(ByVal sender As Object, ByVal e As CopyingFileEventArgs)
If pbFileTransfer.Value <> e.PercentCopied Then
If txtCurrentFile.Text <> e.FilePath Then
txtCurrentFile.Text = e.FilePath
[code]....
The problem is that it is ok when runned but when I click the form it starts to hang but in the console... it is still continuing.
dp.SyntaxHighlighter.ClipboardSwf = '/dp.SyntaxHighlighter/Scripts/clipboard.swf'
dp.SyntaxHighlighter.HighlightAll('6f5d1b01659646618ff3bdca29fb1b7f')
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Jan 17, 2012
Looked through many tuts, can't find one.
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May 23, 2012
I am using background worker to report progress on the screen. In the Main.vb I have the following
Public Sub report(ByVal sender As System.Object, ByVal e As System.ComponentModel.ProgressChangedEventArgs) Handles bwlistener.ProgressChanged
Dim message As String = e.UserState
logRTB.AppendText(message & vbCrLf)
End Sub
When I call this from Main.vb I use:
bwlistener.ReportProgress(0, "Some status text goes here")
It works great. The problem is when I try to call it from any other module in my project.
When I call it OtherFile.vb:
Main.bwlistener.ReportProgress(0, "Some status text goes here")
It doesn't work... The program doesn't crash. Debug goes through everything but no output is actually shown to the end user.
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