System.IO.StreamReader Empty Path Name Is Not Legal
Sep 30, 2011I have a fault with System.IO.StreamReader.
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When the program starts, The faultis 'Empty path name is not legal.' How to solve this fault?
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VS 2008 - Savefiledialog - Export The Data From Dgv To Csv Txtfile - Error - Empty Path Name Is Not Legal
May 30, 2010With this one..
SaveFileDialog2.CreatePrompt = True
SaveFileDialog2.Filter = "Text (*.txt) |*.txt|(*.*) |*.*"
txtBrowse.Text = SaveFileDialog2.FileName
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I'm trying to export the data from dgv to csv txtfile but i'm getting this error..Empty path name is not legal.
Path Is Not A Legal Form?
Feb 11, 2011I keep getting the error path not legal. Why is that? It's suppose to write the path when it installs. Is it not writing to the settings.txt file correctly?
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If My.Computer.FileSystem.DirectoryExists("C:WorldBackup") Then
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Path Is Not Of Legal Form?
Sep 22, 2010When opening my application form the application debug folder i get an error that says "The path is not of legal form." I have read that most get this error when trying to load their project in VS2008, I do not. I can build successfully, debug works and everything. When I publish on the other hand I get the same error. The only reference I have are:
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The Path Is Not Of A Legal Form
Apr 9, 2011the code:
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Selecting Image - Path Is Not Of Legal Form
Apr 28, 2012I am getting a disturbing message error when I dont select image from file then when I select its just ok...it just says:
The path is not of a legal form.
So my question is how can I have a choice whether I can insert image or not...if the fileopendailog opens there is query which says you must select...so may be I don't want to select. So when I click cancel in openfiledailog, that error message prompts. I want make the query in the code to have a choice.
This is the code of putting image into sql server db:
Dim pictureLocation2
As String
Dim aa As
New OpenFileDialog
aa.Filter = ("Image files| *.jpg")
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How To Remove Full Path When Using Streamreader
May 28, 2010i need to put the file name into a textbox i am using a streamreader the file is a collection of numbers which i am importing in using a open file dialog into my program which i am then saving to a database however i need the file name to go along with and not the full path which i currently have,
View 1 RepliesStreamreader(my.resources.mytxt) Illegal Characters In Path?
Oct 27, 2009am trying to read a text file embedded as resource ,i want to be able to get each line as a string() but getting error Illegal characters in path ,whys this? its only a text file
code:
Private Sub readscr()
Dim line As String
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Make System.IO.StreamReader To A URI?
Oct 8, 2010im tring to create a program where i could login from a ftp stored in a folder for an example here is my codeing
Dim USERREAD As System.IO.StreamReader = New System.IO.StreamReader("http://websiteurl.com/loginstore" + textbox2.text + ".uxd)
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Exe Closes System.IO.StreamReader Kills Program?
Apr 24, 2011Ok, So I am making a front-end for a program, and it runs the exe with command line arguments. One of those arguments is creating a log file that tells me who the winner is. Currently I have code that runs the app, tell VB when it exits and then does another event. When testing with message box as the other event, works fine.
When running the System.IO.Streamreader the app just closes down on its own and there are no errors shown.
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StreamReader And System.IO Operations On VolumeNames (ie \?Volume{...})?
Sep 12, 2010I have a device (a few actually) that connects via USB to a PC. From here it acts like a basic storage device using FAT32 as the file system. The other thing is that it won't accept drive names (C:, E:, G: etc) to it so instead you need to use its Volume GUID to connect. I have retrieved this painlessley through MountVol.exe but thats where the difficulties ended.I am not trying to access the file system through VB.NET/C#.net (either will be fine - fluent in both ;) ). In Windows Explorer I can easily visit '\?Volume{71E4C2C7-E511-4B2A-BF5C-569B2B25784E}apic' to access the device and its files. I can also use CMD and the Dir command to go through the files. Just .NET cant seem to cope. I understand the GUID changes on each PC and I am OK with this as I can use MountVol to get the GUID and run the console app with command arguments as it will always be a human initiating the command.
I have tried manually entering the path via Console.ReadKeys but this also fails to even see the directory above and any of the files inside one being 'dev' without an extention. I can use System.IO operations without extensions on "normal" drives (ie those
with letters) so I know it's not the extension causing problems. I did a Try/Catch with a StreamReader pointing to the file to see what was spurted out:
System.ArgumentException: Illegal characters in path.
at System.Security.Permissions.FileIOPermission.HasIllegalCharacters(String[]
str)
StreamReader And System.IO Operations On VolumeNames (Volume{...})
Oct 7, 2010I have a device (a few actually) that connects via USB to a PC. From here it acts like a basic storage device using FAT32 as the file system. The other thing is that it won't accept drive names (C:, E:, G: etc) to it so instead you need to use its Volume GUID to connect. I have retrieved this painlessley through MountVol.exe but thats where the difficulties ended.
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VS 2008 Argument 'Path' Is Nothing Or Empty
Jul 20, 2009My app is functionally fine. Although, after the login, it throws up this error:
"Argument 'Path' is Nothing or empty". If I click continue, it proceeds without any problem. I looked up on msdn forums and realized that I need to add a valid argument 'path'. Here is the link to the msdn page I looked at:
[URL]
VS 2008 Online VB Networking - System.IO.Streamwriter And Streamreader
Jan 14, 2010I made my own advanced networking system which uses System.IO.Streamwriter and Streamreader but offline. I would like to let this use a directory online, I have a webhost available for that, now how do I say to the program it has to look at a specific map with all the users information?
I now have already this into my login form:
Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogin.Click
On Error GoTo A
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Just curious if I can let my network grow out international instead of pc. Also I have a second question. I made a create account page which is supposted to make a text file with the txtUserName and txtPassword inputs, but it does create the file, but doesnt write any lines into it.
Code here:
Private Sub btnCreate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCreate.Click
Dim UserGenerator As System.IO.StreamWriter
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Accessing Files Off Of A Drive That Has A Different Path From System To System?
Mar 26, 2011I'm coding this neat little project that's kind of a hack into the SanDisk U3 Cruzer's ability to have both a CDFS and FAT32 File System. This is helpful because the program is burned to the CDFS (It's basically slip streamed as an .ISO in place of the original U3 .ISO), and the settings files (which I've developed as text files) are placed on the root of the flash drive. The program itself is VERY simple actually, except I'm having a slight issue that's really driving me insane:
The drive path of the Flash Drive won't be the same from computer to computer. I.E... The files are "UAI.txt" and "UInfo.txt". The root of the drive on my comp is "I:", but on my laptop is "F:". So if I program the path from my computer as the absolute path, an exception is thrown when the path changes on another computer. I cannot have this happen. It is probably THE MOST crucial element to this program. How can you save and read info if you can't find the files? =P
So I've gone through so many threads and forums trying to find a batch of code to allow me to make the path relative. I've found the following code (modified, of course). It works PERFECT in Debug, but throws an exception once packaged to the CDFS partition:
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System Says Not Allowed To Write In C:path (Vista System)
May 15, 2009Dim streamWriterIO As New IO.StreamWriter("C:myfile.txt")
With streamWriterIO
.Write(streamWriterIO)
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Streamreader Limits - The Streamreader Works Fine Until The File Is More Than 100,000 Bytes Long?
Apr 19, 2011I have a problem with a streamreader in visual basic 2008.I am updating a database from text files on an ftp server. The streamreader works fine until the file is more than 100,000 bytes long.It reads until it reaches this point and then just ends. No error message, it just reads to this point which happens to be 2 fields out of 6 in the database stream. My question is - does the streamreader have a limit? And if so what is a workaround?
Dim connString As String = "Data Source=" & pDataBase
conn = New SqlCeConnection(connString)
Dim strQuery As String = ""[code]......
StreamReader/Writer - Loads An Entire Text File Into A Streamreader Variable
Jul 9, 2009I'm writing a program that basically loads an entire text file into a streamreader variable, then reads this variable line by line and parses and writes a line into a new text file. I'm VERY new and my knowledge is mostly self-taught, but I can't seem to get out of this one. It works for smaller files, but it appears to reach a limit in characters at some point because in a file of 900 lines, it stops writing about halfway through 800 and there are no errors, the program actually completes and the message box pops up.
There are a few things with this code I already know I should fix, such as creating the new text file name, it's messy, I just don't know how.
Private Sub btnProcess_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnProcess.Click
Dim IndexValues As String()
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System.UnauthorizedAccessException:Access To Path?
Jun 22, 2010In my VB.NEt 2008 application, I am frequently creating and killing the file Fileopen and Kill(Multiple times ). It was working fine with Windows XP. But in Windows 7, it is worjking fine for some time (creating and killing theile properly) and then t is creating unautoriszed Access exception after some time .it does not happen immediately and it happens intermittently.
Sampel code is as give below:
Publicl_filenumber as Integer
Procedure 1:
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Locate A File In The System Search Path?
Sep 24, 2009I need to obtain the full path for a file located in somewhere in the system search path for executable files, when I only have the file name. Another user came up with the following code. However I was hoping to find something that is more directly supplied by the system, rather than a "roll your own" solution such as this one. Also, the solution below could run into problems, however unlikely, because it is possible for Windows file and folder names to contain semicolons. The split function doesn't pay any attention to quotes, and could therefore improperly split a path that includes a folder name with an embedded semicolon.
Private paths() As String = Split(Environment.GetEnvironmentVariable("PATH"), ";")
Private messageOutput As String
Private fileInPath as String = "notepad.exe" ' for example[code]....
Allowed To Write In C:path (Vista System)?
Jul 11, 2010allowed to write in C:path (Vista system)
View 6 RepliesCorrect Path For System.IO.File.Copy?
Sep 10, 2011i got to do a program in VB.NET that copies a file from a pc to a usb device. I use the method System.IO.File.Copy(FileToCopy, NewCopy) in which i have to specify the destination path. The problem is that when i change pc the destination can change: for example in my pc i read my USB pendrive o G: and on my friend pc i read the usb pendrive on E:. How can i solve that? May i specify a general path to my USB giving it a name or anything similar?
View 5 RepliesSystem.UnauthorizedAccessException - Access To Path Denied?
Jun 24, 2011This is a slightly tricky one, so bear with me...I have a simple little method:
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the service is for now working correctly. Anyone have any ideas what would cause such an intermittent failing? I'm assured by co-workers that nothing was changed over the weekend (not manually at least). Baffled...
VS 2008 System.UnauthorizedAccessException Missing Path?
Mar 18, 2009Ok so I have a small problem with an error I am catching. It only produces the file name and not the actual path of the file.I want to delete a folder and all the files and folders inside of it. However an error is thrown when a file is "read-only". A quick fix would be to set the attributes of that file to normal and then try again, the only problem is the error doesn't give you the location of the file.
2008
Module Module1
Sub Main()
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Is .( Ever Legal In C# Or .Net
Apr 7, 2011Can the sequence .( ever appear in C# or VB.Net code?(Not in a string, comment, or XML literal, EDIT: or preprocessor directive)
View 6 RepliesAccess To Path F:System Volume Information Is Denied
Jun 2, 2011[Code]....
This code is for listing all folders including subfolders. but when i run this code i m getting error "Access to Path F:System Volume Information is Denied" How can i ignore this folder and continue scan.? is ther any solution for this error?
Error System.ArgumentException: Illegal Characters In Path
May 9, 2011I am getting below error, when passing the path which has space between the folder name.
"System.ArgumentException: Illegal characters in path"
I have declared the the path in the variable like below:
Dim sFilename As String = "C:\Test\Windows Service\Schedule.xml"
or I have tried like this as well but same error I am getting.
Dim sSFilename As String = """C:\Test\Windows Service\Schedule.xml"""
and passing this file name to the below code:
Dim docDataSet As New DataSet
Dim docReader As New XmlDocument
Dim xnl As XmlNodeList
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VS 2008 Huge Linking - System Cannot Specify File Path
Oct 3, 2009Im trying to tell my button to go directly to a website, it works fine when i path it to the web browser itself, but then when i add it to go to the sppecific site it says system cannot specify file path. Heres the code Rob gave me and it didnt work ""[URL]""" Heres my exact line: Process.Start("C:Program FilesFlockFlock.exe ""[URL]"")
View 5 RepliesSave Image Files To HD Path From A RESTful Api With Out Using Imports System?
Mar 13, 2011I am currently trying to create a DLL for use with a RESTful api. The only issue I have is that so that this DLL can be used in a service or a program without a GUI, so I can't use "Imports System.Drawing.Imaging" as this requires a form. I have looked around for examples to handle this without using this library but have had no luck.
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VS 2005 System.Windows.Forms.FolderBrowserDialog Default Path?
Aug 12, 2010I want to set the System.Windows.Forms.FolderBrowserDialog to a default path when I load it up. If I set the selectedpath that works but I have to scroll down to that folder to select another one in it.
All I want it to do is start from the passed path; i.e. e:defaultpath ewdocs.