Variables For System Drive (most Commonly 'C') And System Directory
Jul 15, 2010What are the variables for The system drive (most commonly "C:") and system directory (Most commonly "C:WINDOWS")
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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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Forms :: Determine A Dynamic Drive Letter For A Directory On The Removable Drive And Then Open That Directory In An Explorer Window
Feb 19, 2009First off a short background of the project I am working on- I am developing a program that will be run off removable media (i.e. USB Flash drive). This will be a �virtual desktop� which you will be able to take with you and have the same �desktop� on any system. As we know drive letters can change with each host system the drive is plugged into, I need to be able to determine the path for the flash drive and access a specific folder ( i.e. My Documents)
I have an picture box(representing the icon) placed on my form (form1) and when I click the icon I want to be able to open and view the a specific folder from the portable drive. I need a click event that will determine a dynamic drive letter for a directory on the removable drive and then open that directory in an explorer window.
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'hook' A Physical Drive Connected To The System?
Jun 18, 2010What I'm looking to do is 'hook' a physical drive connected to the system so I can process data coming through the API before it's written to the disk. I have a sense DeviceIOControl is where I should be, but I can't seem to find any IOCTL code that uses a callback (which is what I expect I should be using to scan/process data on its way through the API).
View 2 RepliesConnect To My Database From Server Without Share System Drive?
Apr 19, 20101- I've a database access without password on the Server.I've created forms by vb.net to connect to database through OLedb Connection *like this
PHP
Dim Connec As New OleDbConnection("provider=microsoft.jet.oledb.4.0; data source = \Serverc$xDB.mdb;")
my problem is : I worte : if I want to connect to database from any pc I must save Username and password to control userpasswords2 (soted user name and password from User accounts)that's big problem , so I must save this to all client pc and the client can access Server system Drive there are no security ,this is the fifth day to find a way to connect to my database from server without share system drive.I tried to used it but not working.where can I write server name and path database and server's User-name and password.I've an exe file on server drive like this \Serverc$1.exe
I want some client to run this file with out share the file.If I can to creat a form by vb.net has a Username and password to run this exe without client know the userName and password.I'found map network , but is not ok for me.If I mapped network drive to client, then he can copy files and read some of security data.Is there a way to access this file from server without mapping or sharing folder for public ?
How To Access Network Drive Through Usual System.IO Classes
Feb 28, 2010My 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?
View 4 RepliesCalling System Environment Variables?
Apr 13, 2011Below is the code i am using to read and update the system environmental variable. This code is working fine when i am executing .exe on Local Machine. I am getting problem when i try to access this .exe from Browser(using citrix i am doing this) and invoke. when i invoke from browser its going to catch block and displaying MsgBox("Unable to Create LDAP Key.
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Windows System Variables In Strings
Jun 6, 2009How would I use a system variable such as %userprofile% in a string in VB.net? I have this in my program, but calling the system variable directly isn't working
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Directory System With MS Access?
Jul 23, 2011My plan is to create a form containing a directory tree showing the 8 Diskdrives in a visual way including the subdirectories. Maybe this is old fashioned and modern suggestions are Welcome. I use Access to store and view movies and pictures.
View 2 RepliesSystem.IO - Getting The Attributes Of A Directory?
Dec 27, 2010posted a discussion about a modified rendition of a function that John Wein came up with. I've been working with it some, trying to refine it. One thing I wanted to do is to avoid having any directories which are either system or hidden. Following is what I've come up with:
For Each D As String In Directory.GetDirectories(Dir)
' Do not include any that are either system or hidden
Dim dirInfo As New DirectoryInfo(D)
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System.io.directory.getfiles, How To Use It
Apr 6, 2011I can't figure out how to use the (because im noob)ystem.io.directory.getfilesIf I try to put it in a textbox for example textbox1.text = system.io.directory.getfiles("my directory") then I just get the error message "Value type of '1-dimensional string of array' cannot be converted to 'string'. First of all I have no idea what the '1-dimensional string of array'thing is.And if I try to put in a msgbox for example sgbox(system.io.directory.getfiles("my directory")) then I can run the program but when I click my button then it says "it can not convert argument prompt to string(google translated)". And second, I don't know what the prompt thing is either
View 4 RepliesVS 2008 - System Variables / Editing Registry Value
Apr 21, 2010Can VB 2008 use the system variable %1 that contains what filename a program was opened with? I am making a new app that when you click a .exe file and select the right option, it will edit the registry but I need to be able to keep the filename that I right clicked on so that I know what registry value to edit, is this possible?
View 1 RepliesCannot Import System.Windows.Media.Imaging And System.Windows.Forms Or System.Reflect?
Mar 16, 2009With the following imported namespaces in my project :
Imports System.Windows.Forms
Imports System.Reflection
.. I cannot add..
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.net - Creating System Level Environmental Variables Manually?
Feb 16, 2010How do one create System Level environmental variables manually. I just installed a GeoSupport Desktop Edition software and in the document it is mentioned that I need to create system-level environmental
variables for PATH and GEOFILES manually
Add the location of the GDE executables to the system-level environmental variable PATH.Normally this means adding C:Program FilesGeosupport Desktop Editionin to the PATH.
Variables - Created An Application That Communicates Via System.net.socket
Nov 9, 2011I Have a problem with vb.net. Basically I created an application that communicates via system.net.socket. on the server side of client connect, and a thread checks whether there are new incoming data. if there are data, puts them in a few tread declared variables, together with the "index" of the server. once this is done through "INVOKE" calls a routine that checks the incoming data andperforms an operation based on the data. I'll see what I do not work
Dim returndata As String = System.Text.Encoding.ASCII.GetString(data)
TextBox1.Text = ("DATA : " & returndata & "Socketindex =" & socketindex.ToString & " Index=" & index.ToString)
But that does not appear in the texbox, appears only "returndata", the rest c 'is same thing with the messagebox, individually, can display a messagebox with variable,but when I try to make a messagebox that displays them together, the texbox same thing!
And the same thing if I want to compare them with each other, for example
if index
= 0 then msgbox ("OK")
It does not work ...
C# - Using System.IO.Delete To Remove Certain Files From A Directory?
May 1, 2009I have 2 images inside a folder called Pics..... Image1.jpg and Image2.jpg.What code must i place inside my Submit button to just delete Image1.jpg located here "~/Pics/Image1.jpg"?
View 4 RepliesSystem.IO.Directory.Getfiles Silverlight 4 Is Not Working
Sep 20, 2011I'm using Silverlight 4 OOB & elevated trust.
I need to get all the filenames on specific directory & populate an object List(Of String)
The compiler throws an error "Method not found" on .Getfiles() method.
Dim files() As String = System.IO.Directory.Getfiles(Path) 'this line is failing..
IDE :: DataGridView1_CellLeave(sender, New System.EventArgs), Unable To Cast Object Of Type 'System.EventArgs' To Type 'System.Windows.Forms.DataGridViewCellEventArgs'.
Jun 27, 2011VB 2008, DataGridView,DataGridView1_CellLeave(sender, New System.EventArgs)
"Unable to cast object of type 'System.EventArgs' to type 'System.Windows.Forms.DataGridViewCellEventArgs'."
What is the Correct String for "New System.EventsArgs"
Anybody there is to help me out.
Error - LINQ To Entities Does Not Recognize The Method 'System.Object IIf(Boolean, System.Object, System.Object)'
Jul 29, 2011I am getting following error whenever I want to use IIf function inside entity framework query.
LINQ to Entities does not recognize the method 'System.Object IIf(Boolean, System.Object, System.Object)' method, and this method cannot be translated into a store expression.
C# - System.IO.Directory.CreateDirectory With Permissions For Only Current User?
Jun 17, 2009I want the asp application to create a folder that has access only to the account the application was running with (i.e. asp account?)
I actually wanna use this one, but I don't know how to use the "ComputerCurrentAccount" dynamically.
I want to get the current working account.
Watch A File System Directory To See When Files Are Added To It?
Sep 29, 2011In c# winforms application, I want to choose a directory from network and after that, when any body put a file in it, I want to see a message such as "A file added."
View 1 RepliesMethod 'System.Object CompareObjectEqual(System.Object, System.Object, Boolean)' Has No Supported Translation To SQL.?
Apr 16, 2010What do I need to convert?
Dim CEESearchByAppNo = From CEEsearch In dbCEE.tblScanneds _
Where CEEsearch.AppNo = iAppNo
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VS 2010 System.Security.Cryptography - Generate An HTPASSWD File For Server To Secure A Directory
Apr 10, 2012i wanna generate an HTPASSWD file for my Server to secure a directory. For Crypt im using DesEncrypt Method , here is my Code :
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Unable To Cast Object Of Type 'System.String' To Type 'System.Predicate`1[System.String]
May 13, 2009I am getting the following erro message: "Unable to cast object of type 'System.String' to type 'System.Predicate`1[System.String]'." on the line of code: If Not StrgFrag.Exists(wrd) Then I was expecting a True/False response and assumed it would work given that wrd is a String variables and StrgFrag in a List(of String). Do I need to reference the wrd variable differently? Dim StrgFrag As New List(Of String)
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Error: A First Chance Exception Of Type 'System.InvalidOperationException' Occurred In System.Data.dll
May 5, 2011I am using VS 2008, Office 2007, and Win7 Home Premium on my system.I have a simple application which should be a breeze to build. All I am attempting to do is pull data from an Access database with four small tables into a data grid on a windows project. Should be simple, set up the data connection, choose a datagrid from the table in the data source view, drag it onto the page and done, right?I can't get it to work. It will all work fine until I attempt to run or debug the project. The data will not show up. The data grid does, but I get this error: A first chance exception of type 'System.InvalidOperationException' occurred in System.Data.dll
As I said, the project seems to build fine, but it will not pull the data. After the initial build I get the message that Windows will show this page in Compatibility View. Is it something with Win7 Home Premium, or a setting somewhere?
System.io.fileinfo Cannot See A File In System Folder On Windows Server 2008 64bit
Jan 28, 2010I have a utility that is a simple exe that is not installed compiled with VS2005 and works well. But when I upgraded to VS2008 the utility can no longer locate files in the active system folder. I have UAC turned off and am logged in as the Administrator and it still can not locate a file that I can see in Windows Explorer. The file I am looking for is PakMgr.exe.
View 1 RepliesSystem.TypeInitializationException: The Type Initializer For 'System.ServiceModel.ClientBase' 1' Threw An Exception
Dec 22, 2009I'm using express 2008 build the windows app. and in the app, it calls a webservice which was built by VS2003.It works fine on most PCs. however, there is one PC, it always shows this error:
System.TypeInitializationException: The type initializer for 'System.ServiceModel.ClientBase' 1' threw an exception
....
System.configuration.ConfigurationErrorException: Configuration system failed to initialize ---> System.Configuration.ConfigurationErrorsException:
Unrecognized configuration section system.serviceModel
.....
however, the configuration file was generated by express 2008, and it seems there is no error.
Unable To Cast Object Of Type 'System.EventArgs' To 'System.ComponentModel.CancelEventArgs'
Jul 11, 2012I have a text-boxes that use both the validating event as well as the lostfocus event.I have pinpointed the exception in the post title to the validating events.[code]Maybe I am unaware that CancelEventArgs are not suppose to be used in the validating event? [code]
View 4 RepliesVS 2008 : Error - Cannot Perform 'Like' Operation On System.Int32 And System.String"
Nov 2, 2009I'm trying to use DataView.Rowfilter and I'm getting an exception which says "Cannot perform 'Like' operation on System.Int32 and System.String".
Here's the code...
Dim str2 As Double = CDbl(searchSTR)
Me.shipperDV.RowFilter = fieldName & " LIKE '*" & str2 & "*'"
A First Chance Exception Of Type 'System.UnauthorizedAccessException' Occurred In System.DirectoryServices.dll
Dec 16, 2010I would like to create a local user on a windows 7 PC, but gets the following error when commitchanges runs. I am administrator on the PC:
A first chance exception of type 'System.UnauthorizedAccessException' occurred in System.DirectoryServices.dll
Here is my code:
CODE:
I am using Visual Basic 2010 ultimate in Visual Studio 2010.