So I need somone to tell me how to fix this code. I'm trying to rename a file which is in C:\%appdata%\Roaming\.minecraft\bin\XenonUpdate.jar to minecraft.jar.
The code I am using is:
My.Computer.FileSystem.RenameFile("C:\%appdata%\Roaming\.minecraft\bin\XenonUpdate.jar", "minecraft.jar")
Can someone fix this?
%appdata% not not a valid path, rather it denotes a special folder that you can get by using Environment.GetFolderPath, once a get the %appdata% path, you can easily rename file.
Dim folder As String = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)
Dim file_to_rename = Path.Combine(folder, ".minecraft\bin\XenonUpdate.jar")
My.Computer.FileSystem.RenameFile(file_to_rename, "minecraft.jar")
File handling functions do not deal with environment variable expansion, %appdata%. You need to do this yourself.
My VB.Net is non-existent, but I think it would look like
Dim path = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData)
Dim from = path + "\.minecraft..."
Dim to = path + "\.minecraft..."
My.Computer.FileSystem.RenameFile(from, to)
Also, see C# getting the path of %AppData%
Related
I am working in Visual Basic 2017. I have tried to add the file to the Debug folder, but then it just shows that the txt file ienter image description heres missing. I don't have the option under the "Word Solution".. How can I make the file show up? It keeps telling me it doesn't exist.
Dim inFile As IO.StreamReader
Const FileName As String = "words.txt"
Dim subscript As Integer
You can get the path of the directory (Debug or Release or any other) of the *.exe file with:
Dim directory as String = My.Application.Info.DirectoryPath
Using this information, you can then construct the full path with
Dim path As String = IO.Path.Combine(directory, FileName)
If IO.File.Exists(path) Then
...
You can check in Windows File Explorer to see where the file actually is (notice the Copy Path on the ribbon). In File Explorer you will see that the .exe you are running is down 2 directories from the Words Project directory. The double dots in the path is an old DOS way to navigating around directories without having to type out the whole path. This tells the compiler to find the file up 2 directories from the current directory.
For testing purposes this will work. For a release version you could add the file to Resources and access it the same way in any version.
You don't need a stream for a text file. .ReadAllLines returns an array of the lines in the text file
Private Sub OpCode()
Dim words = File.ReadAllLines("..\..\words.txt")
End Sub
Is there a way of grabbing the location of the My.Settings user.config location? So for example I want to be able in VB to grab the path of the user.cofing file path to a string
The reason I ask is that I have an application where the user.config file is backed up and then restored, the issue is that with the my.settings folder structure it uses a unique hash with the folder name meaning that I cannot write into the code a static folder path, instead I need to be able to grab the location of the user.config OR be able to get the folder name of the application AppData.
Any ideas?
To put this in perspective, currently I'm using something like this:
Dim filePath As String
filePath = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData) & "\My_App\My_App.exe_Url_<the_hash_that_changes_causing_issues>\1.0.0.0\user.config"
Because of the hash change this will not always work
Try executing this code:
Dim mainConfig = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None)
Dim userConfig = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.PerUserRoaming)
Dim userLocalConfig = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.PerUserRoamingAndLocal)
Console.WriteLine(mainConfig.FilePath)
Console.WriteLine(userConfig.FilePath)
Console.WriteLine(userLocalConfig.FilePath)
You'll need to reference System.Configuration.dll and import System.Configuration.
I'm working with vb.net 2008 as well. But I have a question.How to remove a file path like this C:\users\myDocu\debug\Dbase.accdb and I only want is the file name Dbase.accdb. Because I want to transfer my files in another computer but the problem is the file path. I always need to change the entire location in my codes to run without debug.
To get the filename without the path, you can use Path.GetFileName.
But if you want a painless way to find a place to store your database, consider putting it into the application data folder (AppData). You can get this folder with Environment.GetFolderPath and Environment.SpecialFolder.ApplicationData, using it like this:
Dim pathToDb = Path.Combine(
Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
"Dbase.accdb")
if you want to use the file locally. If you want to share the file between different instances of your application in a network, put the path e.g. in a config file like App.Config.
Try this:
Dim FullFilePath As String
Dim FileName As String
FullFilePath = "C:\users\myDocu\debug\Dbase.accdb"
FileName = Mid(FullFilePath,InStrRev(FullFilePath,"\") + 1)
I'm trying to use string name in appendline() function. The string named "programFiles" gets the program files location correctly, but I need to include it in append line (to write the path to the file) Tried this,
Dim programFiles As String = Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles)
Dim sb As New StringBuilder()
sb.AppendLine("Your " & programFiles & "is working properly.")
File.WriteAllText(Environment.GetEnvironmentVariable("appdata") & "\mytext.txt", sb.ToString())
But it doesn't write to a file. What is the correct way to do that ?
When I tried your code on my machine, it worked as I would have expected, the file c:\users\[myusername]\Appdata\Roaming\mytext.txt was created and contains one line
"Your C:\Program Files (x86)is working properly."
so obviously your VB is correct. Maybe you're looking in the wrong subdirectory?
Ok, here is my story:
I am building a fileviewer, and i am trying to delete the selected file in the listview.
when i try to delete it, it gave me an error saying the file wasnt found. I looked at my desktop and the file was there. here is the original code:
dim f as string = lv1.focuseditem.text
my.computer.filesystem.deletfile(f)
lv1.update()
this gave me that error. My updated code is supposed to show me where the computer thinks my file is:
Dim file As String = lv1.FocusedItem.Text
Dim testFile As System.IO.FileInfo
testFile = My.Computer.FileSystem.GetFileInfo(file)
Dim folderPath As String = testFile.DirectoryName
MsgBox(folderPath)
this shows a messagebox that shows the path of:
C:\Users\tgs266\Desktop\SIOS\SIOS\SIOS\obj\Debug\test.txt
but the real file location is:
C:\Users\tgs266\Desktop\test.txt
please help
How are you getting the filenames for the ListView? Is it just the filename and no path?
If, for example, lv1.FocusedItem.Text is "test.txt", and that is the value you use (without the path), by default the program will look in the directory it's executing in. This is most likely why you're seeing C:\Users\tgs266\Desktop\SIOS\SIOS\SIOS\obj\Debug\test.txt as the location, instead of what you expected.
If all the files are on your desktop, you can use Environment.GetFolderPath in conjunction with the Environment.SpecialFolder Enumeration to get the file, like this:
Dim file As String = lv1.FocusedItem.Text
Dim testFile As System.IO.FileInfo
testFile = My.Computer.FileSystem.GetFileInfo(Environment.GetFolderPath(Environment.SpecialFolder.Desktop) + "\" + file)
Dim folderPath As String = testFile.DirectoryName
MsgBox(folderPath)
However, if you're going to have files scattered throughout your system, you'd be better off storing the full path as #Plutonix indicates in his comment.
It looks like your code is looking in your applications path on the server while you want to look at the users desktop location.