Create A New Txt File & Lock It With A Password With Program8?
Feb 8, 2009How would I Create a New .txt File & Lock it with a Password with VB8....?
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Import Text File To A Sql Datatable In Program8?
Feb 20, 2012I want to import a text file(with comm separator)to sql express 2005 database using visual studio 2008
View 14 RepliesCreate Txt File And Write To It Without Access Denied Lock?
Jan 24, 20121. I have to create a file. 2. Then I want to write a string into the text file.
I can do part 1 no problem with: File.Create(strFilePath) But when I try part 2 to write to the file it won't allow this as it's still being used:
sw = File.AppendText(strFileName)
sw.WriteLine(strCode)
sw.Flush()
sw.Close()
My code in part 2 works fine on a file that hasn't just been created.
How do I release the file from the File object?
There doesn't seem to be a .close or .flush option.
How To Password Lock Files
Jun 24, 2009how do you lock a single file cuz people r accessing files that r private and help me with VB 2008 code
View 11 RepliesHow To Lock A Computer Until User Types Correct Password
Jun 3, 2012ok, i want to create a program with a button that when pressed will lock my computer until the user presses the number five key.
View 3 RepliesHow To Lock The Computer Till The User Types In The Right Password
Jan 13, 2009how to lock the computer till the user types in the right password! VB 2008
View 3 RepliesUSB Drive: Set Bootable, Lock/Password Protect Folders?
Jan 7, 2011is it possible to set pen drive as boot device through vb.net
View 9 RepliesLock The Computer Screen Until User Enter The Correct Password
Jan 22, 2010i want to make a program which lock the computer screen until user enter the correct Password what will i have to make this application and how i can do this
View 14 Replies'UnauthorizedAccessException' - Create The Username And Password In The Same .txt File
Jul 3, 2009I knew that what I have doesn't create the username and password in the same .txt file. when i create a new user they both get thier own file with no text in them. When I tried to get the streamreader to access the previously created accounts, the only password acceptable is 'password'. I think it only accepts 'password' because 'Password.Read()' and it only created a .txt file Password when I typed it in. (I can't be for sure though). The top code is my Create User and the bottom code is my OK(accept created user).
Private
Sub CreateUser_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CreateUser.Click
If Not My.Computer.FileSystem.DirectoryExists("C:Documents and SettingsAll UsersStart MenuProgramsLogin Text To Speech") Then
[CODE]...
Checking AD Password - Create A Password Change Form For My Company's Vendors
Jan 15, 2012I'm trying to create a password change form for my company's vendors. There are a couple of scenarios I could encounter doing this:
1 - User enters invalid current password
2 - New passwords do not match
3 - User's account is locked
4 - User cannot authenticate because password is expired
It's case 4 that I'm struggling with, because their is no way for me to take the password the user entered and verify it against active directory without getting an error.
Create A Simple Password Box That Will Ask The User For A Username And Password?
Jul 15, 2009I am looking to create a simple password box that will ask the user for a username and pass, if the user is validated against the usernames and passwords in an .ini file the login box will close and launch a program also stated in the .ini file. I would also like to be able to launch different programs for different users.
View 16 RepliesPossible To Create A Program That Can Lock Not Only Application But Whole System (PC)?
Oct 15, 2011I just want to inquire if it's possible to create a program that can lock not only the application but the whole system(PC)? What I want is that, if my application wasn't used within a specified time frame, it will automatically olock the whole computer and it can only be unlocked by a password.
View 8 RepliesCreate A Private Shared Object In Each Class And Lock On That Instead?
Jul 13, 2009I have created a synchronized queue and am using SyncLock on the SyncRoot property of that queue when I invoke the Enqueue/Dequeue methods. The methods are invoked from instances of standard producer/consumer classes.Is that a proper use of the SyncRoot property?
Would it be better practice to create a private shared object in each class and lock on that instead?
Create An Icon In The System Tray As Status For Num-lock?
Jan 12, 2010I am trying to create an icon in the system tray as status for num-lock, caps-lock, and scroll-lock, because my keyboard that came with my computer does not have status lights on the keyboard, and only on the system tray.
The program however that came with it, does not like to work when I have some games open and stuff, it works usually in IE, and most other programs, but some programs just seem to interfere with it.
I have made a new program on a 1 mili-second timer for the 3 and it seems to work just fine in the application, I was wondering now if I could move that over to the system tray and make it look like the one that came with computer, it has 3 different icons, and the icon changes for on/off and has a tooltip status change on mouse-over showing status of on/off.
Create The Slide Transition In The Windows 8 Lock Screen?
Feb 25, 2012How could i re create the slide transition in the windows 8 lock screen. I want my form1 to quickly slide up while revealing form2(Both forms are borderless and in maximized state) (like when the lock screen slides up while revealing the logon screen in windows 8)
View 2 RepliesHow To Create Window Form With Button 'OPEN' And 'LOCK'
May 28, 2009i try to make an application that can communicate with the door magnetic device. So, when the visitor come to my house, i can control the door OPEN or LOCK using my PC. I;ve created a window form using VB.NET with button "OPEN" and "LOCK". Can anyone provide me some advise how to do this, or with some source code together found in other website?
View 3 RepliesLock XML File When In Use?
Dec 6, 2006I am using XML files to store some iformation that are to be processed. I use this code to interact with the XML file:
Dim xmlDoc As New XmlDocumentxmlDoc.Load("theXMLFile")
Do XML stuff such as add elements...
xmlDoc.DocumentElement.AppendChild(oAlarm)xmlDoc.Save("theXMLFile")
What I want to do is to lock the file so that no other process can use the file. If a process wants to use the file, I also want it to wait and try again until file is available.
Release An Mdb File's File Lock Protection?
Aug 22, 2006.NET 1.1VB 2003i have create a program where the program will dynamically create a mdb file, create a table, then populate the table via ADOX.dll using com interop.After populating the table i would like to FTP the said file to some FTP folder, to my dismay everytime i try to upload the mdb file i always get 0 kb, then i found out that the mdb file is "FILE-LOCKED" by some unknown process, but i dont know why because i have manually released all the resources that has been used, here is my code
[Code]...
BitmapImage In WPF Does Lock File?
Jun 21, 2011Dim bmi As New BitmapImage(New Uri(fiInfo.FullName, UriKind.Absolute))
bmi.CacheOption = BitmapCacheOption.OnLoad
this does not Use OnLoad
[code].....
VS 2008 Could Not Lock File?
Jan 20, 2010I've searched high and low for an answer so I'm hoping someone can help me out and I hope I explain what is happening ok. I have a number of people testing an application and one of them in particular is running into this error repeatedly. The error does not happen on my machine or almost any other. I know it is in relation to database usage but what I can't figure out is why the user only gets the error after the database has been called x number of times (and closed each time its done being used) as opposed to why the program doesn't crash the first time the database file is accessed.
The database is in MS Access and here's some pertinent info from the code - and the error is not subject to any particular database call...it just seems that after so many hits to the database its had enough and it crashes.
[Code]...
Like I said, why would the code work on almost all other machines (he's got a newer machine too and has tried both XP and Vista machines) and if there is something about his system why does is successfully call and use the database for awhile but then crashes out seemingly after a certain number of uses of the database file? I know it is not a specific call to the database because the area the application typically crashes for him at can be bypassed by changing some of the options available to the user - when he cuts back on the options used the program simply crashes at a later point in the process.
VS 2008 How To Lock File
May 21, 2010Is there a way to lock a file without having to actually open the file and maintain a "connection" to it from my VB app? This should then prevent other users from writing/deleting/renaming the file. But I also want to allow only my app to write/delete/rename if need be.
View 13 RepliesError 3050 Could Not Lock File
May 20, 2010I am using Ms Access 2000 on a Windows Server 2008 and I have four users connected on a network to the server accessing the databases through a VB6 application which is loaded on all of the users' computers.While using the VB6 program i receive the error "Error 3050 Could not lock file".I know it has to do with the .ldb file.I have checked the permission and all users have full read/write/modify rights on the drive and the folder that the databases are stored in.I checked the MaxLocksPerFile and it is set to 9500.I even tried compacting and repairing and still this error persists.
View 5 RepliesCreate A Password And Log In Using Else If?
Feb 15, 2010Create A Password And Log In Using Else If?
View 4 Replies.net - Release A File Lock On A COM DLL That Has Been Instantiated Via `CreateObject`?
Dec 21, 2011I have a .Net 4 WinForms app that generates a DLL, calls CreateObject on the generated DLL then calls one of several methods that the DLL contains. The DLL is eventually used by a separate app. This WinForms app is just to generate and test the DLL hence why it can generate the DLL multiple times.The problem lies in the fact that calling CreateObject on the DLL locks the file to the process. The next time the DLL is generated it can't overwrite the previous DLL file on disk without closing the app completely and starting it again.
I've tried Marshal.ReleaseComObject, executing the CreateObject in a separate AppDomain, even setting the variable holding the COM object to a different COM object via CreateObject, manually calling GC.Collect() and a whole host of other things but none result in unlocking the file.The code flow is basically (simplified and generic names, etc.):
...
' Compile and generate DLL that is COM enabled and works fine
...
Dim foo As Object = CreateObject("Bar.Foo")
[code]....
is there a way to release a file lock on a COM DLL that has been instantiated via CreateObject without killing the process?
Note: this is a continuation of this original issue. I now have the DLL registering without locking the file but now the issue is with the CreateObject call not the DLL registration.
File Sharing Lock Count Exceeded
Mar 30, 2009i'm getting this error: "File sharing lock count exceeded. Increase MaxLocksPerFile registry entry." i know i can manually go into the registry and edit this, but is there a way to do this in code?
View 2 RepliesFtpWebRequest Async Giving File Lock?
Apr 29, 2012i have written a small app that:-Periodically captures a portion of a screen to jpeg file-Uploads this file to ftp serverAt first i used My.Computer.Network.UploadFileand it worked like a charm. Then i wanted to move to FtpWebRequest async. The reason was because i implemented a global keyboard hook and locking the main thread for upload, disabled my keyboard.I copied the example in MSDN regarding FtpWebRequest. the problem i have is that it seems that the file that is being uploaded is locke
View 1 RepliesLock A File Written And Read By Two Apps?
Mar 24, 2010how I can lock a file so it will be completely written to by the first application, then unlocked for reading by my second web ticker app? My IDE is VB 2008. The second app has a ticker timer which I can modify accordingly. However, I'm still concerned whether the web app will encounter a situation where it competes for file access.
View 2 RepliesRelease MS Access LDB Lock File After Created It?
Feb 17, 2012I have difficulty in removing the LDB generated by the "CREATE" method of ADOX in the following code segment.Aims: Create (on the fly) a new access database and then export data (says Arena modules) to that newly created database.
Expected: The newly created access database should be able to be used by some external operations, say Access.exe, after the end of the subroutine and without exiting the current VB program.
1) I tested that the "Arena code" do nothing about the create/release of the ldb file.
2) I tested the "Exclusive Mode" in connection string, but the access file is still locked by the vb program.
3) I tested under both inside the VB environment, and directly invoke the generated from Explorer, and same results.
4) Other database formats is not the options to me. (due to Arena export limit)
5) It is not a web app.
Code:
Sub Method1()
Dim logs As New System.Collections.Generic.List(Of String)
Dim arenaApp As Arena.Application = Nothing
Try
[code]....
Platform:
Windows 7 64bit, Office 2010 (32)
VB 2010 express
Lib: MS ADO Ext. 2.8 for DDL and Security
Unable To Secure/lock Down A File That Is In Use/open
Oct 4, 2011I am writing a program that acceses a file in VB/Visual Studio 2008 on Win7 and running it as a user who has admin credentials. I am opening the file with the following code:
Dim Input As New FileStream("C:FileTest est.txt", FileMode.Append, FileAccess.Write, FileShare.None) To test to make sure I can't access this file, I tried to open it with Notepad and I was able to and got no errors. I wrote a new value using Notepad and even saved it and I didn't get any errors form Notepad or my VB program.
I then went on and treid to open the same file twice from my VB program as:
Dim Input As New FileStream("C:FileTest est.txt", FileMode.Append, FileAccess.Write, FileShare.None)
Dim Input2 As New FileStream("C:FileTest est.txt", FileMode., FileAccess.Read, FileShare.None)
And I receivded an error in my VB program as expected. So the FileShare.None switch kind of works. Although I was still able to open the file with Notepad while my VB program had it open. I was aslo able to open Windows Explorer and reame it and even delte it while my VB program had it "open", in the write mode no less without my VB program knowing anything about it.
Why are other applications able to ignore the FileShare.None switch? Seems pretty useless if that's the case. And a huge secruity problem
Create Password Protector?
Mar 7, 2010I created a project on form1. I then added form2 to be the password protector for form1.
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