IO StreamReader File Not Found - Error
Nov 8, 2009
I am reading a file from the default location. I request a file by name only using an InputBox. If the User types a file that does not exist I get an exception error. I want to be able to handle the problem by outputting to a list box that the file was not found. My Code is something like:
sr = IO.File.OpenText(fileName)
IF fileName <> "found"
Handle issue
Else
Continue Code
I want to run a check to make sure the file does exist in the default location but not sure how to get it done. I had seen the Public Shared Function FileExists but I am not quite sure how to make it work.
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Apr 19, 2011
I 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]......
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Jul 9, 2009
I'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()
[CODE]...
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May 6, 2010
Iam Using This Code to return app path it works good on my pc but on any other system it give the right path but an error also came
The specified file not found
Public Function App_Path() As String
Return System.AppDomain.CurrentDomain.BaseDirectory()
End Function
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Feb 3, 2010
I had the following piece of code working for the last few weeks and earlier today it seems stopped working.I have the code in a try/catchh block and in that try I create a file, "Build.bat" with code in it that will get it to do some oracle/sql wizardry
If File.Exists(Application.StartupPath & "Build.bat") Then
Shell(Application.StartupPath & "Build.bat", AppWinStyle.NormalNoFocus, True)
End If
After stepping through my code I noticed that the catch is executed at the shell line, so I put it in an if statement to see if the file exists and it always comes up as true, but on the next line I still get a File not Found error.
Try
Dim BatFile As New StreamWriter(Application.StartupPath & "Build.bat")
Dim SQLPLUS As String[co
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Jun 10, 2010
I am using process.start to start Excel.The filename argument has blank spaces in the path and the argument is truncated at the first space.The error that is returned says the file cannot be found.
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Mar 7, 2012
After finish my software, when I was try to run in other computer the error was: Don't possible to get the file or assembly 'ADODB, Version=7.0.3300.0, Culture=neutral, PublicKeyToken=b03f5f711d50a3a'...How the best solution for this error? Just to put the last adodb.dll in the application folder?
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Jun 6, 2005
In the old dos days you could combine 2 files as save to a third file:copy file1 + file2 file3. It still works in a dos shell. I did this: Shell("copy " & file1 & " + " & file2 & " " & file3)I got an error that file3 cannot be found. I know it doesn't exist I want to create it. So I created a bat file:copy %1 + %2 %3 and called it as such:Shell("ccopy " & file1 & " " & file2 & " " & file3). I still get the error that file3 cannot be found. First I don't see how it can tell from the shell that file3 is a file. How do I do this otherwise? Do I have to create a blank file before calling it?
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Jan 15, 2010
I have added bat_fix_w7.reg as a resource file, with binary type, now when i run the code it gives me err System cannot found the file specified, but when i checked my F: drive the file is there than why 2 line is generating err.
My.Computer.FileSystem.WriteAllBytes("f:FixBAT.reg", My.Resources.bat_fix_w7, 0)
Process.Start("regedit /S f:FixBAT.reg")
I want to add hex data to regedit.
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Jul 20, 2010
I have a program that looks for a file named 'license.dat' upon startup. The program first checks the directory it's in, and if the license file isn't there, it prompts the user to select the license file with a file browser dialog. I have tested this code and confirmed it working in a number of different OS environments.Recently, I received reports from two users (one in Germany and one in Italy) that the program can't find the license on their computers, even though it is present in the program's directory and they manually selected it with the file browser dialog. The only commonality I'm seeing here is a lack of English OS, but beyond that I'm stumped.This is the code I'm using:
If System.IO.File.Exists(System.AppDomain.CurrentDomain.BaseDirectory + "license.dat") = False Then
File dialog code goes here
[code].....
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Sep 21, 2009
My.Computer.FileSystem.RenameFile("", "")
Try
Catch ex As FileNotFoundException
MessageBox.Show("Not Found")
End Try
I want it to display an error and NOT crash when file isnt found.
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Sep 19, 2011
I am unable to debug any projects as of a Windows Update 2 days ago. It not only caused problems with VS 2008 but also SQL Server 2008. I did a system restore and my SQL Server is back to normal, but VS 2008 will not debug any projects. I get a vshost.exe has stopped working and then a file exception error. I am copying the file exception msg:System.IO.FileNotFoundException was unhandled
Message="Could not load file or assembly 'sortkey.nlp' or one of its dependencies. The system cannot find the file specified."
[Code]...
I have tried repairing VS 2008 and also a SFC scanow from the cmd prompt. I have also tried unchecking the vshosting property. Nothing works
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Sep 15, 2009
i added its reference to the project i added also the dll to the assembly error 354:file metadata 'microsoft.sharepoint.workflowactions.dll' not found what shall i do in this case
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May 13, 2009
When i do this and run my own program i have made, it always returns with an error - Could not find file. This is what i have: Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]...
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Oct 5, 2009
I'm trying to create a "File Not Found" error to display if a file the program is looking for is not created.Example:
Dim ProcessProperties As New ProcessStartInfo
ProcessProperties.FileName = "filename"
ProcessProperties.WindowStyle = ProcessWindowStyle.Hidden[code].....
I also need help creating a text box, that will submit information to another source (like echoing to a command prompt window). I'm trying to add a killtask option where the user can enter the name of the tast (such as notepad.exe) and press 'Submit'. The button will then send a code (killtask -f notepad.exe) to a command prompt window.
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Jun 19, 2009
Whether I am using VB 2008 Express or VS 2010 Beta 1 Visual Basic, I get the same error: "Debugging information for 'EXCEL.EXE" cannot be found or does not match. Cannot find or open the PDB file" I have filled in the Debug Tab information: Start external program: C:Program FilesMicrosoft OfficeOffice12Excel.exe
[Code]....
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May 8, 2010
While Renaming a File Using the Code" My.Computer.FileSystem.RenameFile(File, "NewName")" , It say that file could not be found...?
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Jul 30, 2009
Error embedding Win32 manifest: Manifest File 'C:WINDOWSMicrosoft.NETFrameworkv2.0.50727default.win32manifest' cannot be found.
Received with this code:
Public
Class HelloWorld
Private Sub DisplayHello_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DisplayHello.Click
HelloWorldLabel.Text =
[code]....
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Sep 7, 2010
I try to define a connection to an ODBC source by giving the user access to "odbcad32.exe" via the shell function.
Here you can see my codesnippet. During runtime I get a "file not found" message, that is completely surprising to me. I had checked the existence of the application in the first place.
Dim RequestedApp
As String = "C:WindowsSystem32odbcad32.exe"
If Microsoft.VisualBasic.FileIO.FileSystem.FileExists(RequestedApp)
[Code]....
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Aug 15, 2011
I want to open some files using my program. and I decided to use a shell command. but when i use shell it gives "file not found error"for example
Shell("C:Documents and SettingsÖnerYavuzDesktopaa.txt") ==> it gives error
but
Shell("C:Documents and SettingsÖnerYavuzDesktopwarkey.exe")==> its work
[code].....
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Mar 11, 2010
I was able to code a sub that opens a StreamReader and Writer. The Reader reads a *.txt file and the Writer modifies it line by line as it's entered into the memory then writes it to a temporary file which is then copied over the file that the Reader read.
The problem is that the StreamReader and Writer seem to fail to close.At first when I tested it I would get an error stating:
Object reference not set to an instance of an object
I put breakpoints in the sub to figure out where it's erroring out and it's erroring out when it does sr.close() and sw.close() (Reader/Writer.close())Here's the code for the sub. Maybe someone can tell me what I did wrong.
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
If pDebugMessages = True Then MsgBox("Stream Reader/Writer initialized.", MsgBoxStyle.OkOnly, "Debug")
Try
[code].....
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Sep 2, 2009
I'm trying to do the most simplest of things... open a text file. Not System.IO, just plain open a text file like you would double click it in widows.I have no problems executing other exe files with the Shell command but when I try:
Code:'...some code
If System.IO.File.Exists(FILE_NAME) = True Then Shell(FILE_NAME)
'some code...
I get "file not found"...
But if I do:
Code:'...some code
If System.IO.File.Exists(FILE_NAME) = True Then MsgBox("File Exists") Else MsgBox("File Does Not Exist") End If
'some code...
the message that pops up is "File Exists"!I also checked the FILE_NAME in a msgbox and the file path is correct.What could be wrong?
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Jan 5, 2010
I am facing another error "An error occurred trying to load the page. Member not found. (Exception from HRESULT: 0x80020003 (DISP_E_MEMBERNOTFOUND) )" performing the following scenario:- Opened a sample VS 2010 WPF project that I receiveved from a co-worker (Project compiles, and run on his machine)I tried to open project properties (Project --> Properties)The project properties panel/window didn't open, all it had was an error symbol (red/white X) and the error message above(HRESULT: 0x80020003).I am unable to view niether the designer window nor the code window (no messages are reported) but the pane where the code/design shoud display is empty, all you can see is the background color.
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Jun 21, 2010
i would like to ask is there anyway to read a txt file with UTF-8 encoding using streamreader or filestream. the txt file is contain some extended ASCII that makes me cannot read the characters properly. I hav tried Encoding.ASCII.GetString(Encoding.UTF8.GetBytes()) but still it return wrong character when it's reading extended ASCII code.
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Feb 15, 2012
I am making a simple application that will be able to store competition data into a text file that I have given a custom extension to on saving. Here is an example of the format that i have saved the data in.
Code:
[Comp_Name]Test Competition[Comp_Name]
[Location]Silverwood Lurgan[Location]
[Type]Teams[Type]
[Code]....
When i open the file, i want to redisplay the data in separate text boxes. Later on in the project i want to be able to search within the file for headings for example;
if "[Heat1]" is present then get all text between [Heat1] and [Heat1]
i am currently able to use the streamreader and open file dialog to retrieve the entire string of text fromthe however i am not sure how to go about getting the text between the headings I have used.
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Aug 13, 2011
Currently I am using this code to check for Firefox on a 32 bit machine
Code:
Dim Firefox32 As String
Firefox32 = My.Computer.Registry.GetValue _
("HKEY_LOCAL_MACHINESOFTWAREMozillaMozilla Firefox 5.0in", "PathToExe", Nothing)
MsgBox("The value is " & Firefox32)
If the value is found then the above message is fine, but if the entry is not found I want it to display a message like: "Firefox could not be found" instead of "The value is: " What code would make this appear?
[Code]...
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Jun 12, 2011
How do I know if I have reached the end of file using streamreader. My file has a lot of empty lines in it.
So if it try to use the following, its just stops wherever an empty line appears.
[code] while ( Not line is Nothing) do.... end while [code]
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Dec 23, 2010
how does the streamreader read the file? how do you know where its up to? how does it read the file line by line, knowing where its read up?what program do you write so that it can read the file line by line and then put the text from the file into an array?
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Aug 26, 2011
I am reading csv file via streamreader. Issue is that in csv file if if the data is like "Read" then steamreader the same data is coming as ""Read"". How to remove this extra inverted commas?
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Aug 10, 2010
I am making an encryption application using System.Security.Cryptography
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