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How to reference the current Windows user's video folder path in VB.net
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Closed 6 years ago.
I am trying to set the initial directory to the downloads folder but it doesn't work, Even though it's a perfectly valid path. Here is the code that I am using:
Private Sub btn_AddMod_Click(sender As Object, e As EventArgs) Handles btn_AddMod.Click 'This brings up the file dailoge
Dim Downloads As String = "\Downloads" 'A variables called \Downloads
Dim UserprofilePath = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile) 'This finds the directory to the User profile environment variable
Dim Downloadspath As String = UserprofilePath.Insert(0, "") + Downloads 'This adds \downloads to userpath
OpenFileDialog1.InitialDirectory = Downloadspath 'This sets the Open File Dialog to go to the users downloads
txt_setmodname.Text = Downloadspath 'This is used for debugging, it sets a textbox to the path
OpenFileDialog1.ShowDialog() 'This opens the Dialog
End Sub
When I copy the output text, the path is perfectly valid but instead of taking me to the path, it takes me to MyDocuments
That's some wacky code you have there. I'm not sure why it doesn't work and I'm not too interested in finding out. I just tested this and it worked as you want:
Using ofd As New OpenFileDialog
ofd.InitialDirectory = IO.Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), "Downloads")
ofd.ShowDialog()
End Using
Obviously you can use an OpenFielDialog that you created in the designer instead of created in code if you want.
By the way, it should be noted that the user's Downloads folder is not necessarily in that location. Mine is on my D: drive, while my personal folder is on my C: drive. For people who keep C: only for system files, all their libraries and the like may be on a secondary drive. Unfortunately, there's no easy way to get the path for the Downloads folder like there is for Documents and some others. I'm guessing that the path is stored in the Registry or the like, but I'm not sure where.
I looked further into it and found out that there is a registry entry for the downloads path, so I used that instead and that seemed to have worked, My code is as follows.
Private Sub btn_AddMod_Click(sender As Object, e As EventArgs) Handles btn_AddMod.Click
Using ofd As New OpenFileDialog
Dim DownloadsPath = My.Computer.Registry.GetValue(
"HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders\", "{374DE290-123F-4565-9164-39C4925E467B}", Nothing)
ofd.InitialDirectory = DownloadsPath
ofd.ShowDialog()
End Using
I'm not sure why the other method didn't work, it always took me to the MyDocuments folder for some reason.
Related
I have done a simple VB application with this code:
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Dim procName As String = Process.GetCurrentProcess().ProcessName
Dim processes As Process() = Process.GetProcessesByName(procName)
If processes.Length > 1 Then
Process.GetProcessesByName("keyinput")(0).Kill()
End If
End Sub
Public Sub type(ByVal int As Double, str As String)
For Each c As Char In str
SendKeys.Send(c)
System.Threading.Thread.Sleep(int * 1000)
Next
End Sub
Sub vai()
Dim line As String = ""
If File.Exists("trans.txt") Then
Using reader As New StreamReader("trans.txt")
Do While reader.Peek <> -1
line = reader.ReadLine()
type(0.155, line)
'SendKeys.Send(line)
SendKeys.Send("{ENTER}")
Loop
End Using
File.Delete("trans.txt")
End If
End Sub
Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
vai()
End Sub
Basically the timer in it check if a file exists, read it and type the content simulating the keyboard.
I want this exe to start automatically when user login, it does it, apparently, I can see the form1 pop up but doesn't really works. Everyting is fine only if I run it manually by double-clicking the icon. Why and what can I do? Thanks
ps. i already tried to execute it with windows task manager, or putting a shortcut in the windows startup folder, or calling it from a cmd
EDIT:
when app starts automatically , process is running, but windows form is showing like this
Instead starting manually is showing like this:
I don't know this for a fact but I suspect that the issue is the fact that you are not specifying the location of the file. If you provide only the file name then it is assumed to be in the application's current directory. That current directory is often the folder that the EXE is in but it is not always and it can change. DO NOT rely on the current directory being any particular folder. ALWAYS specify the path of a file. If the file is in the program folder then specify that:
Dim filePath = Path.Combine(Application.StartupPath, "trans.txt")
If File.Exists(filePath) Then
Using reader As New StreamReader(filePath)
EDIT:
If you are running the application at startup by adding a shortcut to the user's Startup folder then, just like any other shortcut, you can set the working directory there. If you haven't set the then the current directory will not be the application folder and thus a file identified only by name will not be assumed to be in that folder.
If you are starting the app that way (which you should have told us in the question) then either set the working directory of the shortcut (which is years-old Windows functionality and nothing to do with VB.NET) or do as I already suggested and specify the full path when referring to the file in code. Better yet, do both. As I already said, DO NOT rely on the current directory being any particular folder, with this being a perfect example of why, but it still doesn't hurt to set the current directory anyway if you have the opportunity.
It was a Windows task scheduler fault, that for some reason didn't executed the exe correctly at logon. I've solved the issue by using Task Till Down and everything works fine now.
I have currently created code which grabs a ceratin file extension and puts it into a certain folder.
My.Computer.FileSystem.CreateDirectory(
"C:\Users\bj\Desktop\Excel Files")
Dim filePaths31 = IO.Directory.GetFiles("C:\Users\bj\Desktop\", "*.xlsx")
For Each filePath31 In filePaths31
Dim filename31 = IO.Path.GetFileName(filePath31)
Dim newPath31 = IO.Path.Combine("C:\Users\bj\Desktop\Excel Files", filename31)
If IO.File.Exists(newPath31) Then
MessageBox.Show("Error: Please check if the file elready exists")
Return
End If
IO.File.Move(filePath31, newPath31)
Next filePath31
MessageBox.Show("Excel Files Compiled And Cleaned")
This code works well although the directory implemented inside the code and should be different for every user.
I have experimented with this code here which allows a user to select a directory, although now I need help assigning that full directory into IO.Path.Combine(users chosen directory here + \Excel Files, filename31
If FolderBrowserDialog1.ShowDialog() = Windows.Forms.DialogResult.OK Then
Dim grade As New IO.DirectoryInfo(FolderBrowserDialog1.SelectedPath)
This code I believe grabs the user directory and stores it in the grade variable. I need to figure out how to store that 'grade' variable into my code, and also create a new folder in that directory that is specified in the code.
I am using the below code to navigate to a specific web address as follows :
WebBrowser1.Navigate("http://192.168.0.157/cm?cmnd=POWER%20Toggle"
The fact is that the the link returns a .json file and the WebBrowser controls displays the default save file dialog asking if i want to save the file or run it.
I want to ignore it the dialog and read from the .json file directly(i mean after downloading it).
I just want to get rid of the Save dialog of the webbrowser.I am a newbie so i don't know what to search or how to ask properly.
Though your post is not even close to be standard and hardly explains the issue, what i understand so far is that you have a few issues and i will answer them separately.
Disabling the download dialog of the webbrowser and downloading the files automatically
Firstly, you mentioned it returns a .json file. So , you can easily add a SaveFileDialogto your form or set a custom path(maybe in a variable) and check if the webbrowser is trying to download any .json files. Then you will Cancel the call(typically i mean that cancel the popup that says Save , Run ...) and make use of the SaveFileDialog or the local variable to save the file directly to disk. Here's a sample which uses a local string variable as the path and saves the .json file directly to disk :
Imports System.ComponentModel
...
Dim filepath As String '''class lever variable
Private Sub myBroswer_Navigating(sender as Object, e As WebBrowserNavigatingEventArgs) Handles myBroswer.Navigating
If e.Url.Segments(e.Url.Segments.Length - 1).EndsWith(".json") Then
e.Cancel = True
filepath = "C:\test\" + e.Url.Segments(e.Url.Segments.Length - 1)
Dim client As WebClient = New WebClient()
AddHandler client.DownloadFileCompleted , AddressOf New AsyncCompletedEventHandler(DisplayJson);
client.DownloadFileAsync(e.Url, filepath)
End If
End Sub
Displaying the result AKA .json
It is very easy to de-serialize/parse .json files.But first, download this , extract the ZIP and Add Reference to Newtonsoft.Json.dll. Now consider the bellow code snippet :
Private Sub DisplayJson()
Dim parseJson = Newtonsoft.Json.Linq.JObject.Parse(File.ReadAllLines(filepath))
MsgBox(parseJson("element name here").ToString)
End sub
Hope this helps
I writing a pair of programs in visual basics that will consist of a client and receiver. The client is completed making an output text file similar to below.
Dim FileName As String = "Text.txt"
Dim message As String
Dim file As System.IO.StreamWriter
'lblmessage.text says "Call MsgBox("Hello!", 0, "Version Beta 0.3")"
lblmessage.text = message
Dim Drive As String = "C:\hello world\" & FileName
file = My.Computer.FileSystem.OpenTextFileWriter(Drive, True)
file.WriteLine(message)
file.Close()
A sister program that is designed to be a reader will read the generated file.
The program will then take the text located in the selected file and use it as code in the readers programming.
Best example I can show...
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Dim fileReader As String
fileReader = My.Computer.FileSystem.ReadAllText("C:\hello world\Text.txt")
fileReader
End Sub
where "fileReader" is suppose to run the generated code from the previous program and use it as code it the Reader.
The point of this program is to create help tickets in the client and have a tool for reviewing these ticket in the same way they were submitted through the second app.
vba and vb.net is different. I'm not sure in which language your doing your stuff.
vba: use the ScriptControl.Eval command to execute a bunch of commands.
vb.net: it's a bit more code. you can use VBCodeProvider Class. s this SO Question: Load VB.net code from .txt file and execute it on fly using System.CodeDom.Compiler
UPDATE
I found a perfekt resource if you are interested in how to do it right and how it works in the background: http://www.codemag.com/article/0211081
Respected Sir,
Using ClickOnce to deploy an application with a mdb database as Data File. And when trying to backup mdb database file, it does backup in testing enviorments debug or release. But once the application is installed by clickonce, it says unable to find database file. Any error in script ?
Private Sub myBackupFunctionOne()
'Get the database path
Dim CurrentDatabasePath As String = Environment.CurrentDirectory + "\myDB.mdb"
Dim fbd As New FolderBrowserDialog()
If fbd.ShowDialog() = DialogResult.OK Then
'Set the path where you want to store the backup file
Dim PathtobackUp As String = fbd.SelectedPath.ToString()
System.IO.File.Copy(CurrentDatabasePath, PathtobackUp & "\BackUp.MDB", True)
MessageBox.Show("Back Up SuccessFull! ")
End If
End Sub
yours faithfully
Murulimadhav
ClickOnce stores data files in a special folder. You can detect whether an application is ClickOnce-deployed at run time and get that folder path if it is or use the program folder path if it's not, e.g.
Dim dataDirectoryPath = If(ApplicationDeployment.IsNetworkDeployed,
ApplicationDeployment.CurrentDeployment.DataDirectory,
Application.StartupPath)
Dim databaseFilePath = Path.Combine(dataDirectoryPath, "data.mdb")
Note the fact that I have used Application.StartupPath for the prgram folder rather than Environment.CurrentDirectory. The path returned by Environment.CurrentDirectory can change over the course of a session and may not even start as the program folder, so it is a bad option to use in this case. Application.StartupPath, on the other hand, can never change and will always return the folder from which the current application was run.