Mysteriously Lost Access To A Mapped Network Drive?
Aug 5, 2009
I had a basic text file reader/writer program that wrote and read from a mapped, shared drive up and running for a couple weeks. I wanted to add just a couple more things that shouldn't have effected the program (the ability to write another text file), and now the program can't find the shared drive. The error I get is: Could not find file '<file location>' with <file location> filled in with either the mapped name of the drive (X:) or the unmapped name (\servercomputer). Both are copied directly from windows explorer, so I know the path is right. I'm a bit of a beginner, but I'm pretty sure that all the required permissions are in place, and all users have access to this drive.
To further complicate things, it is not consistant. Some commands appear to have no trouble reading off the mapped name, but don't read the unmapped name, and vice versa. Others won't take either. Sometimes the code will execute perfectly up to the middle of the code (accessing the shared drive a couple times), and then it will give this error. If anyone could point me in the right direction,
I am working on a win application that maps/unmaps network drives. And i have a couple of problems getting and setting a mapped network drive's label /name. The driveinfo volumelabel property will get or set the label of the remote drive/folder, what i need is the mapped network drive name/label on the local system. it then adds the driveletter, volumelabel, and connection state to a listview.
my first question on this board. I'm creating a media player(Like so many others). I try playing files over my network. When I pass this address "M:songssome artistsome song.mp3" to the windows media player control it actually opens "\ServerMEDIAsome artistsome song.mp3". But when my program checks if it is playing the correct song it thinks it is not, because the strings aren't equal. Is there a way in VB to get the network address of a mapped network drive? I can already see that it is a network drive but not wich address it points to.
We are getting a new server and we already have a Z: drive mapped, and we want to use the same letter and just change the path without touching all machines. I am looking for a simple VBscript to do that. I have one that will remove and one that will add, but I need to have on script.
I use the following code to layout network drives on a system. I want to add a third column for persistence but in vb.net I do not know how to check if a drive has a persistent map or not.
For Each drive_info As DriveInfo In DriveInfo.GetDrives() If drive_info.DriveType().ToString = "Network" Then With maps.Items.Add(drive_info.Name)
I was expecting this to be easy but it seems that it is not... all I want to do is loop through all drives on a computer and if the drive is a network drive then get the UNC path that this network drive maps to. Simples. I was expecting to just do this:
vb.net For Each drv In IO.DriveInfo.GetDrives() If drv.DriveType = IO.DriveType.Network Then MessageBox.Show(drv.RootDirectory.ToString) End If Next
I am unable to run batch file that is located in mapped network drive using System.Diagnostics.Process in VB.Net. I get:'<batchfilename>.bat' is not recognized as an internal or external command, operable program or batch file.Press any key to continue..I get the same error when navigate to the folder (using explorer) that contains this batch file and double click it. I can successfully run the batch file by changing the directory to that folder through command prompt. I can't figure out why this is happening. I think the problem is Start() function of Process works like double click rather than just run the batch file.
I am doing setup project in VS 2008. I used custom action to select file from local drives.On the button click of custom action form, I am launching Open file dialog...asofdGetNetPath.ShowDialogWhen I run the setup on Vista, and click the button to open the openFileDialog, it hanged, form becomes non responsive and I have to cancel the setup.on debugging I got following error"Current thread must be set to single thread apartment (STA) mode before OLE calls can be made. Ensure that your main function has STAThreadAttribute marked in it. This exception is only raised if a debugger is attached to the process."
I am trying to run a visual studio 2010 app from a windows 2003 server machine that writes xml files to a folder stored on a remote windows 2008 server. I mapped the server drive and can access the folder manually but in the code the 'access is denied' error is hit when the file path declaration is hit for that 2008 server folder. I checked the access writes to that folder and made sure it is shared for that user. Also the user I am logged into on the source server has admin rights so should it not be able to access the mapped drive through the application?How do I grant my app access to that or any folder on that drive on the remote server? I had this issue before but cannot remember what I did to clear this up.
I can't open an Access database on a mapped drive. However it works if I use the UNC path. how I can get this to work? See the code below for an example of what works and what doesn't...
Code: mConnString = "provider=Microsoft.Jet.OLEDB.4.0;Data Source=\tiger-2000dvb_mt7MTrackBE.mdb" ' This works mConnString = "provider=Microsoft.Jet.OLEDB.4.0;Data Source=T:vb_mt7MTrackBE.mdb" ' this does not work Dim objConn As New OleDbConnection(mConnString)
[code].....
The error message I receive is...'T:vb_mt7MTrackBE.mdb' is not a valid path. Make sure that the path name is spelled correctly and that you are connected to the server on which the file resides.I've done the obvious and verified that t:vb_mt7MtrackBE.mdb is a valid path.
I was using the following code to check the file size of a data file on my local machine. Now the data files have been moved to a mapped network drive and this code no longer works. What do I need to change or how do I access file size on a mapped drive?
Dim MyFile As New FileInfo(MyFilePath) Dim FileSize As Long = MyFile.Length
My software handles multiple operations on files, and I have now finished writing the related functions, using the System.IO classes. I now need to add support for network drives. Using a mapping works very well (although Directory.GetFiles is a bit low, and I don't know why), but I'd now like to be able to deal directly with paths such as \192.168.0.10Shared FolderMyDrive. Is there any way to handle this type of paths other than mounting the drive to an available drive letter, using the newly generated path, and then unmounting?
What I am looking for is how to verify that the z drive is mapped, and if so then run the unmapping drive command.When I try to use a if wshNet. anything the stupid thing won't return a true or false value?I searched all through the net to find some sort of If drive mapped = true, however nothing comes up that I can implement.
I read about the UNC path, but that doesn't seem to be making much difference, it may be that I need a user name and password for the connection, can anyone demonstrate code that allows username and password entry so that a file can copy to and from a mapped network drive or the UNC is "\serverarchiveJune"
I have an application that sends files to a Network drive that has been mapped as the "Z:" drive. When code first runs, it errors with "path cannot be found". Then if you open up MyComputer, and double click on the drive, windows asks you for UserName/Password. Once entered, if you run the code again, everything is fine.
So it looks like it cant find the drive b/c a username/password has not "unlocked" the drive yet.
How do I get vb to unlock the drive so I may transfer the file?
I found some stuff online but it seems like it self maps the drive. I'm just looking at applying the username/password to the mapped drive so I may copy.
I have a Little .NET 4 application that starts a portable exe on a mapped drive.But when I'm on my laptop I need to establish a VPN connection before I can access the mapped drive.After establishing VPN connection, the mapped drive is still in disconnected state and my program can't access the exe.Is there som way I can make my program try to reconnect the mapped drive before it acceesses it?
I have run across exam ples of how to create code for getting the universal naming convention for mapped drive in VB6 and access but that don't work in VB net.
At my workplace I have been developing a server/client application which receives on port 8000 and sends on 8001. We do not have any other applications that use these ports, but we do have an application that accesses an SQL database in which part data is stored.
When I am doing testing on the application, if the server were to crash while the client app was sending a packet, could this lost packet cause issues with the network at all?I ask because for some reason we have been receiving connection timeout errors from the application that stores our product data, but we haven't made any changes or started running any new jobs on the network that I am aware of.
I am working with VB 2008. I want to be able to run this program say in N: and it will show me in an excel sheet the following:
Folder Path Size(GB) Count of Files N:Clients 0.53 308
where clients contains subfolders and files and the size is the total of all those files within each folder and the count is the total within each folder also.
This works fine as it is but i have to select one by one the top level folders and some of them are huge so it takes forever to give me an answer.
1) I would like to see in my spreadsheet the following by only select the network drive n:
I am trying to create a function to convert a mapped drive path to a UNC path. I did some googling and found several different pages on the matter. I am most interested in the first one, but I cannot seem to get the code to cooperate. Since the original post was in C#, here is my VB.NET conversion:
Problem:When my computer restarts my mapped drive appears under My Computer. When I try to use it from code I get errors. If I open the mapped drive by double clicking it, and then try the code, it works. What I discovered is that when my computer starts the status, using net use, is
I Have a batch file in a server in my network. I maped that shared folder (that batch file exist in it) every time that I want to run that batch file first I should have to connect to that network drive(with username and password) How can I do it in my code . I want to connect to that network drive by code in my form_load. I test codes below but it dose'nt work.
AppDomain.CurrentDomain.SetPrincipalPolicy(Princip alPolicy.WindowsPrincipal) Dim idnt As New WindowsIdentity(username, password) Dim context As WindowsImpersonationContext = idnt.Impersonate
I am using some like following code to get UNC path of drive letter. Dim query As New System.Management.ObjectQuery("select * from Win32_LogicalDisk") Using searcher As New System.Management.ManagementObjectSearcher(Query) 'loops for all drives on system For Each Mgmt As System.Management.ManagementObject In searcher.Get()
And it was working but now it is giving error. Below is error with stack trace {"Specified cast is not valid."} at System.Management.ThreadDispatch.Start() at System.Management.ManagementScope.Initialize() at System.Management.ManagementObjectSearcher.Initialize() at System.Management.ManagementObjectSearcher.Get()
I also want to know alternative way to get unc path of drive that is also not depend on windows API. As there is a class driveinfo to get all drives (including network) on system. Is there any class that also provide complete or unc path information of Drive.
I've followed the instructions found at the letter (albeit also adding the parameters to pass a username and password), but have had no success connecting to a network drive that requires authentication to access.
I'm working on a program that is used as a tool to quickly search & Open CAD drawings on our network. I have it working for the most part, but it is very slow. Right now I have an ini file with the path to the Directory I want to search for Example "G:" I think the reason this is so slow, is because there are other folders in this directory that don't need to be searched. My idea is to add all of the paths I want the program to search in the ini file, but I don't know how I will have it search through this using vb code
want my ini file to look like this
G:A G:B G:C G:E
So directory D would not be searched by the program because its not in the list.
MyCode Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim PathReader As IO.StreamReader PathReader = IO.File.OpenText("C:ISOExplorerPath.ini")
