i am using vb.net to program and process some files.I pick files from one folder process them and once i process them successfully i should store them in a different folder. when i do fi.move(destination folder) i get an error message saying "THIS FILE IS USED BY ANOTHER PROCESS" below is my code
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My program needs to monitor two folders and if any files arrives in any of those it needs to be processed.So i created two filewatch tasks & the OnChanged event for both This does not work when the files are already in the folders before i start to run my program.It works for just the new files coming in.having a for each loop files loop in the onChanged event will this work I would like to know what's the best way to achieve this
View 1 RepliesNeed to process all the files from folder... Take one file at a time and pass on to "Data Flow Component"...After processing move the file to some other folder and and send email alerts as to how much records got processed. and start processing of another file till the folder is empty.
View 1 RepliesI need to read a dtd file using vb.net for processing the xml elements. How to do this?
View 3 RepliesI have a .NET customer framework that functions much like a Workflow. It uses reflection to get a listing of all of the processes it is capable of from a specific folder, and starts them via reflection with a known start point (all of them have a method called "Process"). Since these files are only called to do the processing and not part of the compile... is there a way for me to be able to drop in a new reference library (DLL) for one of the processes that is being updated without restarting the whole process?[code]...
View 1 RepliesI'm trying to keep the oldest file and move the new ones to a different directory
View 7 RepliesI have created tool which performs batch processing on files that are selected. The sub routine I have defined in the code, now I want to implement a way through which I can select actions that I want to perform and then perform the actions. For example the list has multiple actions, like Open, Close, SaveAs, Resize, Color Correct etc. I should be able to select what all I want to do on each file and then perform this actions. Someone suggested me using delegates for this, but I cant use that since all my functions have different parameters. Ither option I had is to use a nested IfElse or Switch to determine which action is selected and call function according to it, but thats to heavy I think, is there any optimized a better way to do this.???
View 2 RepliesI am currently creating a merging program which is processing multiple text files with header. I've manage to merge the text files but I'm stuck with the header that needs computation.
path of input files and header explanation: Input Files
After merging, I need to put back the header, adding up each values, which I explained in the path above. How can I do that?
Here's my current code:
Imports System.IO
Public Class Form1
Dim openFolder As New FolderBrowserDialog
'The routines must be
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I need to watch onr folder using filesystemwatcher when a file is come in i have to send the file to websservice and recive processed file i done this. my question is if at the time 20 or 30 files come in how to do this 1 by 1 the webservice takes time to process its depends on the file size. so how to process 1 by 1 files correctly without crashing.
View 3 RepliesUsing windows xp. Sp3. over 100GB free on each disk that I use,Attempting to unzip a file that has directories in it. I want all files in the zip file to go to one directory ignoring the dir structure.I'm using VB to do this. Problem is that the process hangs at the same place on 2 different machines. Any ideas. Code below in vb and the results.Executing the same command line from DOS works correctly.unzips 72 files then hangs.
Code
newProc.StartInfo.UseShellExecute = False
newProc.StartInfo.CreateNoWindow = True
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Here's where it stops. And shows the dir struct of the zip file NDDF Plus DB. i've got a screen shot of the dir structure and files. basically it unzips the files in order of the dir structure and stops above.
I am using the FilesystemWatcher to look for files in a Directory, it does not matter what the file is. After a file appears it starts my ftp process and I end up with a bunch of 0 byte files because it processed before all the files arrived.
I would like to WaitFor... (Files_Created) to finish but dont seem to have the right syntax to get this to work properly. I have working code up until it loops. As you can see I have tried various processes to get it to work... mostly commented out. I also have imported just about everything trying to get this to work. Please ask away.
Imports System Imports System.IO.File Imports System.IO Imports System.Threading Imports System.Collections Imports System.Collections.Specialized Imports System.Diagnostics Public Class FileSystemMonitor Public Shared Sub Main() Dim fsw As New FileSystemWatcher() ' create an object of FileSystemWatcher ' set properties of FileSystemWatcher object
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I'm just testing things and seeing if I can get things working and if I can then I want to try and develop this into something more. So far its just a simple button1 finds all files with extension of .mp3 in C: and displays all the findings in a listbox. I then want to use button2 to copy or move (I want to see how to do both) all of the files that are in that lisbox to a directory of my choosing. Here is what I have so far.
Imports System.IO
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As
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I just learned some basics of multi threading in VB.net recently as I came across processing a large List of records and inserting them into SQL database one by one.
I have code look like this:
Private Sub btnLoadNow_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLoadNow.Click
Dim autoLoad1 As New Thread(AddressOf AutoLoad)
autoLoad1.Start()
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Itemlists is a global lists i retrieved from database, everything looks fine to me but when i run this program, I found that the threads are inserting one records 9 times into the database(I have 9 threads in total), which makes me think that maybe i need to specifically assign 1/9 of a list to each thread? Is there another way to do it which doesn't require the splitting of the list, if not , how do i split it then assign?
2008 Array Processing and Sequential File Processing
View 14 RepliesIm a college student and this is my first programming class, i am having extremely diffcult time with arrays and sequential file processing. Im not asking for the whole program, just something to get me started and hints along as i progress with it. Please help me get started on my program, its due in 2 days.
Here are the requirements....
1. The program must input any number of individual�s last and first names using two separate textboxes.
2. The array of names must be sorted by the last name using a bubble sort. You must code the sort.
3. The program must be able to recall the names from the file and add to the existing list of names so that more names can be added to, sorted, and written back to the file in sorted order.
4. Sort in ascending order: A to Z
5. All names must be displayed in a listbox in sorted order when the user wishes to see them.
6. In the listbox the last and first names must be separated by a comma and a space. Example: Smith, Mary
7. The user must be able to search for a name in the array, using the binary search algorithm. You must code the search.
8. Do not use module-level variables. Instead you may choose to use Static.
9. The program must be designed using Visual Basic 2008
Basicly I'm downloading XML files with the Webclient class for processing and caching in a local database. There are three different categories of data, each contains 1 to n numbers of XML files. To retrieve the XML file I ask the server with following parameters in the URL:
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I have been creating a program that copies and moves files from folder to folder; I am using this sort of code;
fileToCopy.CopyTo("path here...")
or
FileToMove.MoveTo("path here...")
My problem is, when I am copying or moving a large file, It's taking so much time and my program is hanging until all the files are completely moved or copied. How about, using a progressbar instead, so that the user will be able to see the progress of copying and moving instead of the program freezing?
I have a text file with 12 lines. Each line has different data and I want to compare line 1 with an original string, then line 2 with the original string, line 3 witht he original string and so on. Not sure how to read each line from the text file.
View 3 RepliesI'm using an xsd file for a couple of my data sets that I'm using to read access databases. While this is great, I just got a new requirement that allows the user to change the link to the access database on their computer. Is there any way to allow them to set the path while still being able to use the xsd files, instead of doing it all through code?
View 2 RepliesHow can I move the .cs or .vb files generated by a T4 template to another folder of the project in visual studio 2010.
View 2 RepliesI am working on some software to work along side our client database and I am basaically trying to add in a basic form of File Management. I have a listbox now that displays the current contents of the clients electronic file. I am wanting to set it up so that people can drag files from anywhere onto this Listbox and move that file to the clients electronic file.
For refrence the clients folder is always situated in same place which is client filesclientID where clientID is the clients unique Id on the database.
I as seeking to move 10 file every 10 minutes from one folder to another using .NET (vb c#) I am was thinking that i could of achieve this with LINQ query, but i cant get my head around this would there be a solution with LINQ or otherwise that can select the last 10 files form or top 10 files. so that i can move only these files from Directory1 ( the big pool of files) into director 2 ( a smaller more manageable pool of files).If all fails- then i wll manually have to copy or cut to at a time.
View 1 RepliesI am making a program that takes files (inside their folders) and copies them into a selected file path. For example, I plug in my jump drive, run my program and it copies my files on the jump drive over to my PC. Now my program does this but it takes the files inside each folder in my jump drive instead of creating a folder for each one in my jump drive. The result is a mess of files in the selected pathway in my PC.I went and created variables in My.settings so that you can save the file path even after you close the program. I just want the program to copy the folders(with the files in each folder) in my jump drive and move them over to my PC.I am using this program copy the files from my jump drive over to my PC, because I save a lot of work on my jump drive and I need to back it up often. [code]
View 4 RepliesI am having trouble opening my vb.net 2005 project from a backed up copy on a hard drive. The original files are on my old XP computer which I no longer have access to. I am trying to open the project in vb.net 2010 on Win7. I have converted the project to vb.net 2010 and when I open the file, nothing shows up, when I try to open them, it tells me the form isn't found in the project directory because it's been moved or deleted. I know that the software on the hard drive didn't back up .exe files, I'm not sure if it did back up other kinds of files. I don't want to restart the project because I've spent over a year on it and have written over 3000 lines of code on it.
View 5 RepliesI am creating a setup file using features brought by Visual Studio.I have some files which can't be removed from the application's folder. How to put the condition on it? or how to prevent user moves it after installation is done?Those files are critical (eg .dll).I already set the 'Hidden' property to 'true', but I think that is not the correct way :)So I try to find another way to do that.
View 1 RepliesI have a system that detects USB mass storage devices. I have a "list of items" listbox (ListBox3) and a list of USB's (Listbox4) When Button4 is pressed it will transfer all files in listbox3 onto the mass storage device selected in listbox4
View 29 RepliesI have this:
Private m_PerformanceCounter As New _
System.Diagnostics.PerformanceCounter( _
"Processor", "% Processor Time", "_Total")
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I m trying to move all my drive's files into h drive firstly i have added all drives in threadpool for scanning and when scanning of any drive finish (Without waiting for other drive's complete ) it will move file's to h drive but it is not working as i wanted that's why i need two threadpool - one threadpool for scanning files and second threadpool for moving file's into drive's
View 11 RepliesAt the moment, my project has a method do_job(jobid,userid)
This method take a minute or two, and then redirects to another page. This has been rewritten so that it now runs in the background and redirects to another page whilst the thread which do_job is on continues. - This works fine. In a button_click event in a default.aspx page :
Dim d as New do_job_delegate(AddressOf do_job)
d.BeginInvoke(jobid,userid, New AsyncCallback(AddressOf Callback),d)
Response.redirect("results.aspx")
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So what i want to happen is - the longest time that do_job takes is the longest time of the longest job (30 seconds), rather than - 30 seconds x number of jobs = time it takes at the moment.
As i'm already using a delegate to detact the process from the ui, can anyone provide any advice/best practice on how i should rearrange my do_job method so that it can handle concurrent tasks to further boost the overall speed.
Is there any way of doing parallel processing in VB.net. Like running a IF-ELSE and CASE in parallel.
For example i'm incrementing a counter in a IF-ELSE statement. And for each count i need to display some thing using a case statement.