.net - Difference Between Computer.FileSystem And System.IO.File?
May 3, 2011
There is a lot of duplication of functions in the My.Computer.FileSystem and System.IO.File namespaces.
So what exactly is the difference between: My.Computer.FileSystem.CopyFile(strSource, strDest, True)
and:System.IO.File.Copy(strSource, strDest, True)
Is there a performance difference? What is everyone's opinion on which which has the edge on read-ability? I personally use the My.Computer Namespace but that is just habit now.
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Apr 15, 2009
What are the differences between these two methods that appear to carry out exactly the same function?
Is there guidance to say which should be used or are there conditions when you may use either?
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Jun 2, 2011
I just need to know what is the slight difference between them so I know which one to use everytime.
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Nov 26, 2011
I'm trying to read a file line by line. Right now I have...
My.Computer.FileSystem.OpenTextFileReader(strList).ReadLine() But I keep pulling the first line, not the next line and so forth, anyone know how to do this? I want to stay with the My.Computer namespace because it is thread safe.
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Aug 23, 2009
IS there an easy way to write to an INI file like. My.Computer.FileSystem.WriteINI(Filename, Section, 1st part, 2nd part)??? Or if not how can i write to an ini file easy and how to read them?
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Dec 30, 2009
i've tried to use SHELL to run an program when i hit "Button1".I reckoned ill use the Computer.FileSystem.GetFiles.To find the File on the Users Computer. And i dont know how to transfer the data Computer.FileSystem.GetFiles obtains to the Shell.[code]
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Jul 20, 2011
If I have a folder with a bunch of ".htm" & ".html" files in it and I use
My.Computer.FileSystem.GetFiles(myFolder, FileIO.SearchOption.SearchTopLevelOnly, "*.html")it returns all the ".html" files, as expected. But if I useMy.Computer.FileSystem.GetFiles(myFolder, FileIO.SearchOption.SearchTopLevelOnly, "*.htm")it returns ".htm" & ".html" files, when I would expect it to return only the ".htm" files. Is this a bug?
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Jul 20, 2011
I would like to create .xml files on my desktop. I have example.xml file under project folder. It has couple variables that users able to change and when l compile it receiving following error message Look like it doesnt exepting My.Computer.FileSystem.CurrentDirectory \example.xmlSee the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.IO.FileNotFoundException: Could not find file 'C:\Documents and
[code].....
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Sep 23, 2010
I recently came across a problem with My.Computer.FileSystem.DeleteDirectory(). It will not delete read only files.I found out by Googling that I could delete the read only files by changing the file attributes to 'Normal'. So I wrote a recursive function, as below.
Private Sub DeleteDir(ByVal dir As DirectoryInfo)
For Each d In dir.GetDirectories
DeleteDir(d)[code].....
It seems to work fine, but it would be nice if My.Computer.FileSystem.DeleteDirectory() had another parameter to delete read only files, or there was an easier way to do this.
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Aug 29, 2009
My.Computer.FileSystem.FileExists(g_DbFolder & "MyDB.sdf")returns false for this existing database in Windows 7 64bitYet when I boot back into Vista Ultimate/(rip off) 64bit the database is properly detected.
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May 30, 2012
My.Computer.FileSystem.GetFiles(My.Computer.FileSystem.SpecialDirectories.ProgramFiles, FileIO.SearchOption.SearchAllSubDirectories, "MSAccess.exe")
or
[code].....
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Sep 5, 2011
I'm trying to use the following code but also include a variable.. Works...
[Code]...
I'm sure it's an easy fix.. I actually want to use the multifile option ie.. "*.mp3","*.avi" etc..
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Sep 14, 2010
Do you know how to declare a variable that can hold the result of a call to GetFiles?
I don't know how to do this, so I am using the following verbose/duplicative version:
Dim l_v_String_FoundFile As String
If My.Computer.FileSystem.GetFiles("A:u_Au_W", FileIO.SearchOption.SearchAllSubDirectories,
[code].....
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Mar 10, 2012
Do you know how to declare a variable that can hold the result of a call to GetFiles?
I don't know how to do this, so I am using the following verbose/duplicative version:
Dim l_v_String_FoundFile As String
If My.Computer.FileSystem.GetFiles("A:u_Au_W", FileIO.SearchOption.SearchAllSubDirectories, l_v_String_FileMask).Count = 1 Then
[Code].....
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Jan 29, 2011
If so, what is it? I am using VB 2010, and am relatively new to VB.
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Feb 15, 2011
This has to be simple, but can't find the answer.I want to display a list of all files from a folder in a listbox. Easy..., but I want to display only the filenames without their paths.
For Each foundFile As String In My.Computer.FileSystem.GetFiles("C:My Folder")
ListBox1.Items.Add(foundFile)
Next
This gives me list looking like that:
C:My Folderfile1.txt
C:My Folderfile2.txt
[Code]...
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Apr 2, 2011
TempUserPath = My.Computer.FileSystem.SpecialDirectories.MyDocuments Returns the string "C:UsersOwnerDocuments" but that folder is actually named "My Documents" (i.e., is "C:UsersOwnerMy Documents" in the Finder).When I try to create a new folder called "Documents" in the Owner directory, Windows asks if I want to merge its contents with the My Documents folder. If I say yes, I am left with only the My Documents folder and none named "Documents".Thus when I attempt to read or write a file to the TempUserPath location, I get an "access denied" error. This happens even after I manually change the name of the folder from "My Documents" to "Documents".
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Aug 14, 2008
if they choose to use a networked version of my software, I will need the main server doing the authenticating. This is a problem, because from what I understand, it is quite easy to clone MAC addresses. I have looked into using the CPU ID and the HDD ID, but those are not unique, well at least I don't think so. Reason why I say they are not unique is because someone has the exact same CPU ID as me, and the HDD ID changes from partition to partition (same drive). Maybe the HDD ID is a partition ID instead? Anyways, I was thinking maybe I could get the Physical serial number of both the HDD and CPU, but I have not been able to find anything yet.
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Feb 18, 2010
We have a network share that is used for transferring files between users on a daily basis. Every day at 3:00 am we run a vb6 program to clear the directory of this network share.
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Aug 27, 2009
I'm using the My.Computer.FileSystem.WriteAllText function to write to a file in a VBA macro for an Access database, but when I try to run the macro, it highlights the "My" in My.Computer and gives me an error saying variable not defined.
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Jun 12, 2010
I'm running windows 7 64 bit and using VS 2010. I'm trying to use the filesystem.getfiles to find a file on the computer and return the path for it. However, when I search C:/ and its subdirectories, it always throws an error: "A first chance exception of type 'System.UnauthorizedAccessException' occurred in mscorlib.dll"
I've looked everyone online and can't find a solution. I have administrator privileges and really I dont want people who use my app to have to adjust security settings for this to work. Is there not a way to search the C drive for a specific file and return its path? [Code]
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Nov 3, 2008
I am trying to build a simple project but I am about to lose my mind over it. The following is my code, I have tried to add the Microsoft Scripting Library more times than I can think but every time it shows FileSystemObject as undefined.[code]
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Jun 15, 2009
I'm wondering what exactly is the difference System.Timers.Timer and System.Windows.Forms.Timer???
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Dec 19, 2006
I need to copy a file from a local computer to a remote computer on the network, if i try to use File.Copy without logon i get the following error:"Logon failure: unknown user name or bad password."How do I provide user name and password for file copy?
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Oct 24, 2009
What is the difference between creating a thead using BackgroundWorker and creating a thread using System.Threading.Thread?
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Mar 6, 2009
I'm trying to make this program which compares the difference between any date in the past and the system date, showing how many days have elapsed since that date. This is the layout I've created so far, the two date boxes currently show the system date so even if I change the system date, both those boxes will adjust to show it as well. I want to try and make the system date a box without a drop down arrow and so you cannot edit the box at all. The box below is fine how it is as the user can enter any date they desire. And the text box at the bottom needs to show the difference between the system date and the inputted date.
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Nov 4, 2010
I have exe file that lunch a program takes 5 inputs. this exe locates in computer B and I need to execute it from computer A using VB.net customized application that pass the inputs through it.
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Mar 1, 2012
They both encode html
Why microsoft use several different function?
Which one is better? are there any strings that are encoded differently between 2 functions?I notice that System.Web.HttpUtility. HtmlEncode doesn't work in client framework. Why?
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Jul 25, 2009
how to do system stock computer using vb.net?
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Jun 19, 2009
I am writing an application to gather, display and export system information for use with a Support Dept.Is there a performance difference between using WMI and My.Computer.X.X in VS 2005? Is one method better practice than the other?There are more lines with WMI, but am willing to write more if it's considered good practice over using My.Computer.X.X.
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