VS 2010 File Exists?
Apr 17, 2012
I have the following
If Dir("C:Test.txt") <> "" Then TextBox1.Text = "File exists" Else TextBox1.Text = "File does not exist"
End If However, I'd like to use this alongside a DataGridView.
Basically, when the application runs, the user selects a folder for file storage. Then, in the DataGridView, the contents in each cell of Column 1 become the file name. In short, the contents of a cell, plus the selected folder for file storage, becomes a whole file path.I need to use the above code to get my application to check if the file exists, and if it does, it should place the text "File Exists" in column 2 of the DGV.
I can't work out a way for the DGV to be "continually aware" if files have been created and so to update automatically without the user having to press buttons etc. As soon as the file exists, the correct text should be placed in Column2.
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Apr 22, 2012
This is troubling me as the FileExists command needs a full path.
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Oct 6, 2011
Having difficulty with the module below failing on line 21. It is telling me: The system cannot find the file specified. (Exception from HRESULT: 0x80070002) Basically what it is designed to do is look for a directory, if that exists then look for a file in that directory. If both = True then it should open the folder to browse the files. I believe the issue is with the "Program Files" being 2 words since the script runs using a root path, but I'm not sure how to format the path correctly to make it work?
[Code]...
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Nov 3, 2011
I'm having a hard time determining if a registry exists or not.
This is what I'm trying:
CODE:
The registry key exists on my PC, so I'm having a hard time debugging it on another PC. When it threw the error, I commented out the last block of code to see if I was checking the key wrong or if it would throw the error just on the variable declaration.
Which is did. I get why it did. You can't .Open a key that doesn't exist. However, I looked it up and everyone is recommending that we do it this way. But this way doesn't exist.
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Oct 19, 2011
How can we check if a Drive exists in the system
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Jun 15, 2012
How do I check if a directory exists?
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Nov 27, 2011
I need to find out if particular library exists on the users PC. Specifically, d3dx9_41.dll.Typically, this file is in the System32 folder and I've confirmed that its actually there on my dev machine.So I thought I could just use the Exists method of the File class. But, it always returns false. I even tried using the LoadLibrary API, but it always retur
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Sep 5, 2011
Public Class Form2 Private Sub TextBox1_Click(sender As Object, e As System.EventArgs) Handles TextBox1.Click
OpenFileDialog1.FileName = Nothing
OpenFileDialog1.ShowDialog()
If Not OpenFileDialog1.FileName = Nothing Then
TextBox1.Text = OpenFileDialog1.FileName
[Code]...
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Jun 2, 2011
I have a security timer to check if the directory exists which I want to access after it's been created by an external application, but what I have done doesn't seem to be the solution although it sounds like a very normal solution to me.
What I have done:
1) External application gets run which is going to create the directory
2) I set the variables to make the timer able to know what to check
3) My application needs to wait till the boolean variable gets set to true, so I put it in a
While:
vb.net
'Non existing files protection
While (Not bDirectoryExists)
If bDirectoryExists Then
Exit While 'In case it got created in the meanwhile
End If
If Not tmrFileCheck.Enabled Then
tmrFileCheck.Enabled = True
End If
End While
4) In my logic, the application should go out of the while now because the variable is set to true, and the code moves on, which never happens..
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Nov 15, 2011
How can I check to see if a certain node/element exists in a XDocument object?
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Mar 12, 2011
I want to do a web navigation program with autofill forms.(for semi-automatic directory submition). This is one example but because the directory's are diferent I need to check first if fields exists, and I dont know how?
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
WebBrowser1.Document.GetElementById("Title").InnerText = Form2.titlu.Text
End Sub
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Oct 26, 2010
I'm having trouble finding a reliable method to check if a directory (folder) exists on an FTP server. I want to create new directories and then upload files into them but thought it best to check if the directory already exists. Although attmepting to create a directory that already exists does not seem to cause any errors, it does waste a bit of time.
This code reliably checks if a FILE exists:
[code...]
I have attempted to modify this with ListDirectory in place of GetDateTimestamp (to check if a directory exists) but it seems no exception is thrown whether the directory exists or not. I've done lots of Googling but haven't found a satisfactory answer.
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Nov 15, 2010
Here's my code: System.IO.File.Move(Form6.OpenFileDialog1.FileName, "Temp") I'm trying to make it so that the program copies the file that you select in the OpenFileDialog and moves it into the "Temp" folder. It gives me an error saying: Cannot create file when file already exists.
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Mar 7, 2012
I am trying to write(what I thought would be a simple piece of code. I was wrong.
What I am trying to do is to get an application to check if a file exists, However, I have it wrong as the file obviously does exists, but when I run the application it tells me it does not.
Imports System.IO
Public Class check
Dim checkfile As New FileInfo("C:\HelloWorld")
[Code].....
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Jan 26, 2009
im trying to make code to check if a file with the same name exists twice in the same dir one with .dds and one with .veh file extentions and if they do put in a listbox but if only one exists then it puts it in another listbox i have made code to filter .dds in to one listbox and .veh in another but i dont know how to make the "check" if they are both there
this is the code i have to split them at the mo
For Each files In dir
Dim path() As String = files.Split("\")
Dim chunk As Integer = path.Length
[Code]....
but i wanted the Else for the .dds files that dont have the matching .veh file
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Oct 24, 2006
OK, hi. what i'm trying to do is ultimately detect wheather a word doc exists. I don't want to open it.hat it's going to do is detect if the file exists.
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Aug 9, 2010
I'm using the coding below to determin if a certain file exists on the hdd. However there is an error on this line: If FileExists("C:myfile.txt"))="False" then msgbox "False"
it gives me the following error message:End of statement expected.
what am I doing wrong?
[Code]...
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Feb 2, 2011
Have only just started trying Visual Basic after using Delphi almost ever since it first came out. How on earth do I see if a file exists? - simple terms please
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Aug 28, 2011
I currently have a bunch of text files I need to edit in a folder, I need to edit each file and remove the same line but not all files have this line, so I need to create a script that needs to check if the line exists then remove it.I have 1000s of files, that's why I need help to be able to create a script that does it for me instead of me editing each one manually.I am not sure on how to do this, but I am sure it is not difficult for people that have good experience with VB.net.
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Jun 7, 2011
In my vb.net winform application, I am moving the file (ex: sample.xls from one folder to another. If file already exists with the same name, the new file name should be incremented (ex:sample(1).xls). How can i acheive this?
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Dec 22, 2010
I have a method which tests for the existence of a file prior to carrying out some manipulation of file content as follows:
[Code]...
The idea is that if the file does not exist, then the file is generated by calls to the NLog logger instance, at which point the file is created and the specified header info is inserted. The method works fine from the application itself, however I have a simple NUnit test which implements a test method to verify that the file is created and populated as expected. When I step through with the debugger, I find that '_logPath' is set to:
D:Documents and SettingsTE602510Local SettingsTemp
unit20ShadowCopyCache4288_634286300896838506Tests_-1937845265assemblydl37cdfe61aaa18c98d_f0a1cb01logs2010-12-22.log
Unfortunately, despite the fact that the file DOES exist, the call to File.Exists returns false. From earlier viewing of the config path the above path would appear to be correct for these NUnit tests. Does anybody have a clue what is happening here and what I need to do to get the desired result? The pathname to the log file as per the XP file system is:D:Documents and SettingsTE602510My Documents_VSSWorkAreaPsalertsIpTestsinDebuglogs
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Nov 28, 2011
What is the easiest want to check if a .dll file exists, then to load it ? ( i don't need to use modules from that dll file, i just want to run it ).
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Dec 8, 2011
How do I check if any file exists in a folder.
If found I want to delete it.
I can check for a specific file:
If System.IO.File.Exists("C:Labs" & "Lab0.txt") = True Then
msgbox "Files Found"
else-------------> I want to Delete it End If
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Feb 26, 2010
Check if file exists in a folder
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Jul 21, 2009
In vb.net (using vs2005), I'd like to see if www.domain.com/myfile.txt exists.
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Nov 21, 2011
What I want my code to do is to check to see if a text file exists, and if it doesn't, it'll create one and write to it, but if it does then I want it to make the contents my label's text.
Here's my code:
Imports System.IO
Public Class Main
Private Sub Main_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code].....
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May 22, 2012
I haven't used System.IO before, and I'm a little stuck.I need to check if a file exists, for example C:Documents and SettingsverraineDesktopSURNAME Firstname v1.docx, if this file exists the filename has to become v2, and so on. Usually there will only be a v1, but in the case that a clients position changes we have to be able to save the new version without overwriting the old one.
How would I be able to do this efficiently? I'm uncertain to say the least. Because, if I manage to find out how to save the file as a different number, that's alright, but if that next number exists as well? I can only think of ways to do this that require a lot of code.
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Jun 18, 2010
I need to detect if a file exists within drive C: but I do not know in advance in which directory it should be located so this means that I have to search the entire disk. Is there a way to perform this process directly (through an existing method for example) or do I have to write code for getting the directory structure and search each directory?
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Jan 25, 2010
I would like to check if a URL exists -- without requesting the file. The program needs to check if a PDF or Excel spreadsheet exists at a particular URL. If it does, it might want to download the file, but it should not download it every time.
I currently use the WebBrowser.Navigate method to do this, but it always downloads the file. But I don't want to actually download the .pdf or .xls file, I just want to determine if the URL exists.
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Feb 7, 2012
file.Exists function not working
Dim f1 As New FileInfo(Server.MapPath("/CaseStudyImages/TemporaryImages/"))
Dim f2 As New FileInfo(Server.MapPath("/CaseStudyImages/" & success & "/"))
[code]....
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