Is there anyway to reliably know when a large file has completely finished copying to a particular folder? For example, Computer1 copies a large file to Server1Share1. On Server1Share1, I want to do something AFTER the file is done copying, without Computer1 intervention.
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Is there anyway to reliably know when a large file has completely finished copying to a particular folder? For example, Computer1 copies a large file to Server1Share1. On Server1Share1, I want to do something AFTER the file is done copying, without Computer1 intervention.
View 2 RepliesI'm trying to browse for a large file and copy it with a background worker but get the folling error:"Current thread must be set to single thread apartment (STA) mode before OLE calls can be made. Ensure that your Main function has STAThreadAttribute marked on it. This exception is only raised if a debugger is attached to the process."
Code:
Private Sub BW_CopyEXE_DoWork(ByVal sender As System.Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles BW_CopyEXE.DoWork
Dim fullFilename As String
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I'm using "My.Computer.FileSystem.CopyDirectory(...)" to copy large directories (30-50gb) from one mapped share folder to another. Using "FileInfo.length" to add up all file and subfolder sizes, determines the 'origin directory' size just fine. However, if I use the same method for determining the size of the 'destination directory', mid copy, it returns the full file size, despite the copy not yet being complete.I'm at a loss as to why, as this method works fine in testing, going from a local PC t
Private Function FolderSize(ByVal dir As String) As Long
Dim Size As Long = 0
Dim d As New DirectoryInfo(dir)
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How do you recommend I copy large files over the LAN (>20GB)Currently I am using File.Copy.Another question I have is how can I implement this class to be self contained, meaning that it would report progress to the object that called it? or do I have to define a delegate in the calling object?
Code:
Public Class cCopier
Private Delegate Function CopyProgressRoutine(ByVal totalFileSize As Int64, ByVal totalBytesTransferred As Int64, ByVal streamSize As Int64, ByVal streamBytesTransferred As Int64, ByVal dwStreamNumber As Int32, ByVal dwCallbackReason As Int32, ByVal hSourceFile As Int32, ByVal hDestinationFile As Int32, ByVal lpData As Int32) As Int32
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I have to periodically (2-3x/wk) copy a file or two to approximately 70 remote computers. I have full control of the remote computers and they all follow the same directory structure and security permissions. I have asked in the General PC forum to see
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I have a user interface app that allows you to drag/drop in files - and it turns them into HttpListener request POST's to another EXECUTABLE that I have running - let's call it BACKEND1. BACKEND1 will be running on a SERVER when this gets ready for production use. Lots and lots of users running the UI - all dragging in files - all getting POST'ed to BACKEND1 - with the file included as a memory stream in the POST. BACKEND1 responds to the UI with a "sequential" file number assigned to the file centrally on the server.
On the SERVER is also running another EXECUTABLE - let's call it BACKEND2. It's job is to work with the DRAG'd in files. Both BACKEND1 and BACKEND2 sit on the same SERVER. At the moment I am writing the memory stream to DISK in BACKEND1 - and POSTing the FILENAME to BACKEND2 for it to work on. Would it be better to not write the file in BACKEND1 but instead include it in the POST to BACKEND2 - where it can be written to DISK? Is having LARGE HTTP REQUEST's a burden when sent between two EXECUTABLES on the same machine?
My primary goal is to have a really available BACKEND1 talking the the UI instances running out in the world. I'm concerned that doing the file i/o in BACKEND1 is "expensive" - and I don't care about the performance of BACKEND2 as much. just looking for opinions. I guess ultimately I'll have to bench mark this myself in a production environment to get a real answer.
lock from reading/writing/copying a loaded XML file with XDocument.Load [VB 2010]?
View 1 RepliesI have a user interface app that allows you to drag/drop in files - and it turns them into HttpListener request POST's to another EXECUTABLE that I have running - let's call it BACKEND1.BACKEND1 will be running on a SERVER when this gets ready for production use.Lots and lots of users running the UI - all dragging in files - all getting POST'ed to BACKEND1 - with the file included as a memory stream in the POST. BACKEND1 responds to the UI with a "sequential" file number assigned to the file centrally on the server.
On the SERVER is also running another EXECUTABLE - let's call it BACKEND2. It's job is to work with the DRAG'd in files.Both BACKEND1 and BACKEND2 sit on the same SERVER. At the moment I am writing the memory stream to DISK in BACKEND1 - and POSTing the FILENAME to BACKEND2 for it to work on.Would it be better to not write the file in BACKEND1 but instead include it in the POST to BACKEND2 - where it can be written to DISK?
Is having LARGE HTTP REQUEST's a burden when sent between two EXECUTABLES on the same machine?My primary goal is to have a really available BACKEND1 talking the the UI instances running out in the world. I'm concerned that doing the file i/o in BACKEND1 is "expensive" - and I don't care about the performance of BACKEND2 as much.
I have a requirement that users be connected via the LAN for a small service I am writing. Simply check My.Computer.Network.IsAvailable isn't enough because that will detect any network (e.g. wifi). I need to check whether or the user is LAN connected (and can therefore connect to an Oracle DB)
View 1 RepliesI have a copying error with my program. I am trying to copy the internet cache folder, and the error states that some files cannont be copied (read only maybe?) How can i make it copy, or just skip the uncopyable files?
My.Computer.FileSystem.CopyDirectory(Environment.GetFolderPath(Environment.SpecialFolder.Internet Cache), "d:My Documents")
I have researched the Internet and found more than a few potential solutions, but I keep getting errors on a Windows 7 machine. Here's the scoop. I have an application written in VB.NET that launches a console application. The console application will run independently of my VB.NET app, so the user can close and restart the VB.NET app and potentially start a second session of the console app from the same installation.
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VS2008 SP1, Winforms solution, VB.NET, compiling for x86 and .NET v2 I have about a dozen projects in the solution, with a couple of Windows forms projects and some class libraries. If I rebuild the solution, it clears out and recompiles all the projects, as you'd expect... and then disappears without trace or error message. Since I'm reconnecting to VSS 2005 over HTTP across the internet, it takes all month to start back up with everything loaded, so it's incredibly irritating. The compiled application itself works fine, and normal build and run after changes also works fine.
EDIT: Just to clarify, No add-ins except Refactor! (I know, I guess I ought to try uninstalling it to see if it's that, but it's just too useful! - I will see if there's an update though). And no custom build steps. It's just a vanilla Winforms app, with references between the projects (and some references to COM dlls for interop).
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I've got an app which uses a background worker to copy files. It works fine but some files are quite large and it "appears" as though the app isn't doing anything. Is there an alternative to the File.Copy method of copying files so I can report on the progress of individual file copies, like the percentage complete?
View 19 RepliesHere's my
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During the file copy, Label2 isn't being updated. In fact, my whole form goes non-responsive. How can I fix this?
Searched High & Low to find a reliable way to get HDD real serial numbers in VB.NET. WMI method using Win32_PhysicalMedia, does not work reliably (I am administrator & using XP Pro & SATA drives)
View 4 RepliesI am working on server side application of FB login.Having converted the example here:[URL]..To VB, and using System.Net.WebRequest.Create to retrieve the responses I am now able to get a text string including the access_token and the expiry time in the following format: access_token=ACCESS&expires=2577
Obviously I can split this into an array and split the parts to get the access_token But, on the FB Developers example above, they do it with PHP like so: $params['access_token'];Is there a VB.net way of doing this? This seems more reliable to me than teh aforementioned splitting idea, ie, if FB change the output format.
Cannot Consistently and Reliably Write to a Custom Event Log from DotNet
View 4 RepliesI have an array of the following structure:
<Serializable()> Public Structure Piece
Dim id As Integer
Dim pos As Point
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I cannot do the following:
File.Copy(Application.StartupPath & "wait.exe", "%APPDATA%WAIT.EXE")
Can someone remind me how I got about copying a file to that location?
So, I have a task where I need to basically copy about 600,000 PDFs, some of which can be 5-6 MBs from one network fileshare to another network fileshare on another pc.Now, I crawled through the directories, sub-directories etc etc and created what I call a Filename/Filepath Database lookup table. This table contains the name and the unc fileshare path of each file which comes in handy.I have used Multi-threading and File.Copy to "copy" the files and I getting about 45K files per 4 hours which I need to be significantly faster then that and I am seeing performance degrade over time
View 1 Repliesvb.net - Ways to reliably split a URL string and extract required part
View 15 Replieson my form i have a button and five textboxes... when i click the button it takes me to a website. on this website is a list of five items. i want to take these five items and place them in the 5 textboxes. up to now what i have been doing is highlighting the first item in the list on the website, right clicking and using the copy feature, then going back to the vb form and pasting the first item in textbox1... then go back to the website and highlight item two... return to the form and paste in textbox2.. then the same procedure for the next three items
is there a way to highlight all five items from the website, right click, select copy and then paste the information into the 5 textboxes on the form... one in each of the textboxes provided without doing it one at a time
I am trying to show a list of folders then copy only the selected folders.It displays the folders correctly but copies only the contents not the folder itself, how can I correct this?
Display files
Private Sub ListDirs()
SrcFolder = (("\" & (OldPCTxtBx.Text) & "" & "C$"))
Dim dir As New IO.DirectoryInfo(SrcFolder)
For Each subFolders As IO.DirectoryInfo In dir.GetDirectories
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I have been using VB a fair bit in the past developing a Access Database, recently I wanted to give my front end interface a bit more power so I have started learning VS 2010.
Anyways, I am still using Access for my databases and i am having a bit of trouble working with the data in VS 2010, what i would like is the following:
A way to form a string or integer from a SQL query (from a single field or multiple on that row) assuming the query will always return one row.
Then a way to write string or integer variables back in to db fields.
example:
Dim cn As New OleDb.OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|ItemRegisterDB.mdb")
Dim cmd As New OleDb.OleDbCommand With {.Connection = cn, .CommandText = "select * from tblItemregister where ItemID = 1"}
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Example = ??? 'What would i need here to copy fields from that row to string?
I googled some code that takes listview contents and puts it into the clipboard, but it doesn't work, when I paste the contents into Excel it looks weird!Here's the code that copies listview contents to clipboard:
Public Sub CopyListViewToClipboard(ByVal lv As ListView)
Dim buffer As New StringBuilder
For i As Integer = 0 To lv.Items.Count - 1
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The code makes sense to me when I'm trying to see what it's doing but why in the world when I paste the contents into Excel it looks like this:I don't understand...everything is fine when I'm adding new items to the listview and all, but when I click "copy" and then paste it into ms excel this is it how it looks like...
I have a file that is constantly altered, and if an error happends, I want to have a backup. I was wondering if there's a way to make a script that will copy all the files in the selected folder, and post/overwrite them every 20 minutes in a back-up folder or something, and I say overwrite so it doesnt take up 298347234 gigs of data.
View 2 RepliesI have the following code where I make an copy of my database that I use. the code executes 100% but the problem I have is I'm not able to access my database afterward.I get a "Cannot start your application. The workgroup information file is missing or opened exclusively by another user." and so if I restart the application it all works fine again.I'm certain the reason is because I can only access that database using a specific account name and password which is not account I'm logged in with.What i want to try is to default that database mdb to the point where no user is accessing it, or to reassign the the only account name that can access it to that database mdb. I've tried playing around with file security but had no luck.
Private Sub cmdBackup_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdBackup.Click
BackupDialogDB.DefaultExt = ".mdb"
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im trying to create a dialog allowing the user to change the image currently being displayed to something they choose.the error occurs when i hit the system.io.file.copy().heres the function.
This is the event that calls the function to copy the file - its works fine
Try
'get integer value of selected movie
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I want to write a program to do Markov chain, but my states are quite large. First of all I calculate all the transition probabilities and revenues for all states(1381860 total states), and store in a multidimensional array. Public RevArr(0 To 9, 0 To 750, 0 To 282) As Long
After that the iteration of markov chain should use these as inputs to calculate the steady-state probabilities. But when I try to run the main code I got this error.Exception of type 'System.OutOfMemoryException' was thrown.
The following is the declaration of second array I add just another dimension for storing all the iterations, but I get this error. Dim stateprob(IT + 1, 0 To 9, 0 To 750, 0 To 282) As single