Directory.exists(UNCSpec) Always Returns False?
Jun 23, 2010
I am developing a Windows Service (Yes, windows service) using VB2008 and am having trouble determining whether a remote folder exists.The IF in question goes something like this:
If NOT system.io.directory.exists(strFolder) then
System.io.directory.createdirectory(strFolder)
End if
The problem is that the above test (excluding the NOT) always returns False, regardless of whether the folder exists or not. So, even if the folder exists, the next statement tries to create an already existing folder which does not go well.
The weird part(s) - after some tests
The system.io.directory.exists() works well when I type it in the immediate window for both local and network resources
It also works well when it is within a normal app (that is, not a service) regardless of whether it is local or network resource
The exists() method when in the service works well if the folder being tested is on the local machine, but fails when it is remote network resource, regardless of whether it is a true UNC or a mapped drive.It is not user's rights, as I have tested with both my own user and the localsystem user and have tested with network resources where I do have access rights.When I try to debug, the PC starts playing the Twilight Zone Theme (Ok, I am kidding about this one )Doing some searching I found that others are complaining about the same behavior, but no suitable answer has been found.
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Jun 28, 2011
I've read through the above and they all are the same, but I still don't see the answer. I'm doing the following
inDir = "\buxro01-t61"
ValidDir = IO.Directory.Exists(inDir)
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Sep 18, 2010
I am writing the code in the class to create the strings. I want the value to returns as true if the strings in the class are matched with two numbers or more, but if the if the strings in the class are not matched with first two numbers or not then returns the value as false.[code]....
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Aug 13, 2010
I tied a text box to dataset using the following code
tbAddr.DataBindings.Add("Text", dsCust, "SYS_CUSTOMER.Address");
gridview to same dataset using
dgvNames.DataSource = customerBindingSource - this is in property box.
customerBindingSource.DataSource = dsCust.Tables["SYS_CUSTOMER"];
i make changes in text box tbAddr update_click () in this method i use the following code
[Code]...
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Jan 30, 2010
Was wondering why the IsDate function always returns false.
dim myYear as string
myYear = trim(txtYear.text)
If isYear(myYear) = false then
[code].....
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Feb 17, 2010
Sub pageload() Handles Me.Load
Dim bom As New List(Of Car)
Dim car1 As New Car With {.Name = "Pea", .Year = 2}[cod
WHY??? I mean the object has the exactly same data, so why does itee]..... say it is not contained?
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Dec 7, 2010
I call a function (SaveChanges) to access my business / data layer and save any changes to fields that are marked as an Add or Update and are marked to be processed. This function used to work fine up until 60+ minutes ago. What is happening is that suddenly the function is returning false. After debugging through the code, when it hits Return the local boolean is set as True but when it gets back to the calling method (and uses the return value) it is now False. As I said I went through line by line and debugged it, then I added a watch to it. The funny part is that there is one spot that sets the Boolean to false, and when I put a breakpoint on that spot it is never reached.
Here is the function:
Private Function SaveChanges() As Boolean
Dim blnSaved As Boolean = True
Dim saveableRows As List(Of DataRow) = (From d As DataRow In _listData.Tables(0).Rows _
Where Not d("Marking") = "Duplicate" _
And d("Process") = True _
[Code] ....
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Oct 3, 2009
[VB.Net 2008 Express Edition]I have a 2D array of Integers called Map(0 to 79, 0 to 79)In this array I store IDs for tiles to be loaded later.I'm trying to write a module to generate a random dungeon every time it starts by making a room 10x10 tiles in the middle, picking a wall, making a hallway from that wall, and adding a room to the end of that hallway.From there it picks a random wall anywhere in the map, adds a hallway and a room, and repeats until the number of floor tiles is high enough [400 atm] The problem is that when the rooms and hallways are made, it first runs a function to return whether or not that space is empty. The problem is that even when I know for a fact the space is empty, it returns false. I don't understand why. Here's the Clear function.
Code:
Public Function Clear(ByVal Top As Integer, ByVal Left As Integer, ByVal Height As Integer, ByVal Width As Integer) As Boolean
'Returns whether a rectangle is empty
'used to loop through a rectangle of the map array
Dim introw As Integer
[code]....
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Apr 17, 2010
In vb.net how do you check if a ANY directory exists inside a directory I would need to know if there is a folder inside the c:windows directory (WITHOUT knowing if there is ANY directory is in there).
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Jul 28, 2011
I have a math program that I am working on. One of the exercises has a random word and 6 radiobuttons. The user has to select the radiobutton that displays the exact number of letters in the random word. What I am having trouble with is creating a Public Function to check if the answer selected is the correct one. The radio buttons are within a groupbox. The Public Function returns a boolean True or False.
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May 10, 2012
I am working with tasks, so I've got the following code to update a label on my form:
Private Delegate Sub UpdateLabelDelegate(ByVal s As String)
Public Sub UpdateLabel(ByVal s As String)
If Me.InvokeRequired Then
Me.BeginInvoke(New UpdateLabelDelegate(AddressOf UpdateLabel), New Object() {s})
Return
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Jan 17, 2009
When I try to save the picture and the picture is already existed it show an error
Me.Location = New System.Drawing.Point(50, 50) Create a new Bitmap object with the screen bounds Dim both As Bitmap = New Bitmap(166, 261, Imaging.PixelFormat.Format32bppArgb) Create a Graphics object that will process the screen shot front and back Dim bothgraph As Graphics = Graphics.FromImage(both) Copy the screen contents bothgraph.CopyFromScreen(0, 0, -506, -279, Screen.PrimaryScreen.Bounds.Size,opyPixelOperation.SourceCopy)' Save the resulting graphics
[Code]...
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Feb 15, 2010
I'm trying to compare something the user sends to a listview(first column) to see if it can find a match using [code] and if it equals true the program requests a password if its false it returns the noturous "failed to login"
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Apr 10, 2011
2003I've implemented Forms Authentication on one particular subfolder on one of my sites. My code works perfectly on my development machine, but there is a slight problem on the live server.If you browse to the admin subfolder, if you are not authenticated, you will be redirected to the login page. The Master Page footer also contains a link to the login page; when the user logs in, that link is supposed to change to a link to the admin page:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim link As HtmlAnchor = FindControlIterative(Me, "Login")
If HttpContext.Current.Request.LogonUserIdentity.IsAuthenticated Then
[code]....
This works fine on my dev PC, but on the live server, IsAuthenticated() returns False, and thus the Login link is not replaced by the Admin link. However, if browse to the admin subfolder, I can access the content fine; there is no redirection to the login page.
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Feb 9, 2012
I have some problem with copying the file from one Directory to another directory by create the folder if that folder is not exists in destination directory.
Example:
Source path: C: emp est1.txt
destination path: C:Data
[code].....
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Jan 29, 2010
I know how to make a new directory on an FTP server, but I wanted to know how I can check if a direcogtry exists, and if it exists display a message?
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Jun 15, 2011
I'm using then next method to check if a directory exists but it seems it doesn't work.
[Code]...
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Apr 30, 2009
text boxes. (Where Combo box1 is the Drive Letter, Combo Box2 is a folder, And Text box is another folder. ie.
If My.Computer.FileSystem.DirectoryExists("ComboBox1.Text & " " & ComboBox2.Text & " " & Textbox1.Text") Then
MsgBox("File found.")
[code]......
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Jun 5, 2012
I can't seem to work this out... I've got a program that references a network path. The problem is that the network files are not found when I run the program from various computers. If I have the user navigate to the network path directoy and then run the program it works perfectly.
The problem is that whenever the machine is restarted I run into the same problem and have to manually navigate to that path before the program will be able to find the files.
I then tried several checks to see if the directory exists but it's not working.
Public Sub FillListBox()
If My.Computer.FileSystem.DirectoryExists("\AB eamportalShared%20DocumentsJustin%27s%20AppsFeedback") Then
[Code]....
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Jan 7, 2009
I wanted to create a login system that would have 3 tabs 1 for regular login, 1 for admin login and 1 for account creation. So far so good. It saves the accounts by saving them in a .urs file in the map called /Users/. However when this map does not exist it will show a error. I would want to know what code or so to put into the form_load which will make my program create the map /Users/ if it does not exist. As im not familiar with all the codes and stuff. The only thing i can come up with is
Mkdir "/Users/"
but then ofcourse it would create the folder users everytime i start the program. not i was still "Hello Worlding" a few days ago, so i really am unfamiliar with any sort of high-skilled programming which i probably dont understand.
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Jan 3, 2010
I tried this
Imports System.IO
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If Directory.Exists("c: estDir1") Then
'shows message if testdir1 exist
[Code] .....
I am getting errors such as:
Exists is not a member of directory
CreateDirectory is not a member of directory....... and so on
How to remove these errors?
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Jun 15, 2012
How do I check if a directory exists?
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Nov 26, 2009
I'm trying to get the last time the directory was updated (written to), and if it's later than the date i have stored i want to process that directory for new/changed information.The problem I'm having is that the Directory.GetLastWriteTime(path) seems to only get updated with creating and deletion of files.when a user just updates an existing file (for example a text document) the GetLastWriteTime remains the same for the directory even though the modified time of the text file has changed.
I don't want to itterate through the files in the directory, is there any reason the directory last write time does not get updated when modifying an existing file?
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Jun 13, 2009
I have some code that loads an XML which works fine, then it checks in a certain directory for a file. Then if that file exists it displays the file name if not it dispalys "no image available"
VB
FolderBrowserDialog1.ShowDialog()
If RBFP1.Checked = True Then
TXTPath2.Text = FolderBrowserDialog1.SelectedPath
If My.Computer.FileSystem.FileExists(TXTPath2.Text & "DatabasesFuture PinballFuture Pinball.xml") Then
[Code] .....
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Aug 19, 2009
I'm building an application which require to use Directory.Exists on a network share UNC path. I know how to use that function, and how to implement it in my code, it's working perfecty locally.
Here my setup:
- VS2003
- .NET 1.1
- It's an Outlook Add-In
Here the code :
Dim realpath as string = "\myserverfolder$subfolder"
Impersonation.ImpersonateUser("admin", "DOMAIN", "adminpass")
Dim isDirExist As Boolean = Directory.Exists(realpath)
If isDirExist = False Then
Directory.CreateDirectory(realpath)
End If
Impersonation.undoImpersonation()
If I build this code, and register it in Outlook with my personnal account (admin), it's working fine, I receive true. If I build this same code, an register it in the Outlook of a normal employee (user only), it's always returning FALSE, no matter if the directory exist or not. The share is set to everyone allow, and I tried giving everyone access to the ACL, and it's the same result.
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Sep 5, 2009
i want to check if a file exists in the Application.StartupPath. I tried My.Computer.FileSystem.FileExists but that checks the whole computer doesn't it. ? How do i check if a file exists in a directory?
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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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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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May 15, 2012
I was wondering i have a try block setup but need to catch an object exists error so I can continue in my code and ignore that user because she/he exists already in another ou.Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth. - "Sherlock holmes" "speak softly and carry a big stick" - theodore roosevelt. Fear leads to anger, anger leads to hate, hate leads to[url]...
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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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