I'm using this class to try and impersonate a user on a remote machine.[code]....
However, it fails when trying to open the registry hive with an "Attempted to perform an unauthorized operation" error.I know the password is correct so can someone tell me what might be going wrong?
This error occurs when I want to add my app to the startup keys
My.Computer.Registry.LocalMachine.OpenSubKey("SOFTWAREMicrosoftWindowsCurrentVersionRun", True).SetValue(Application.ProductName, app)
[code].....
When I try to run my DLL in Autocad, I got the message below.Application attempted to perform an operation not allowed by the security policy. To grant this application the required permission, contact your.I know there are many threads on this error, but Im not sure about one thing.Can I resolved this on our FilesServer or I have to do something on each computers that will use the DLL ?
View 3 RepliesI'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 & "*'"
I'm running Windows Vista with admin privilege and UAC is disabled but still unable to write to windows registry!
My.Computer.Registry.SetValue _
("HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionRun", _
"Test", "C:Test.exe", Microsoft.Win32.RegistryValueKind.String)
I'm getting error "Unauthorized Access Exception was unhandled."
"Access to the registry key 'HKEY_LOCAL_MACHINE....' is denied."
I've googled the net and found that registry permission elevation is required for admin tasks, Is there away to take registry key ownership through VB.Net code??
Dim Conn As New ADODB.Connection
Dim rs As New ADODB.Recordset
Conn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & "C:Documents and SettingsUserDesktopContribucionescontribuciones.mdb"
rs.Open()
rs.Open("SELECT * FROM master")
rs.MoveFirst()
TextBox1.Text = rs.Fields("sueldoanual").Value
I have this error
The connection cannot be used to perform this operation. It is either closed or invalid in this context.
how to perform the database operation such reading data and using them for comparison within the VB programming..
Please guide me with explanation as i have very little knowledge regarding the database operation...
i am using VB.Net 2008 as frontend...and MS SQL Server 2008 (express edition ) as back end...
I wrote the code below which calculates the length of a line on the form and save record. An error occurs when the programme tries to save the record. It gives me "Cannot perform '=' operation on System.Int32 and System.String" error. I checked the data type of "ID"(int), "Microscope"(Varchar), "Magnification"(int) and "Calibration"(Decimal), and they are fine so far as I know.
Code:
Private Sub btnEnd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEnd.Click
'Check if the length textbox is not empty
[Code].....
I am trying to send an email through a remote Microsoft Exchange Server with an application I am making in VB2005. I have access to the server, as well as the required credentials. The only part I am unsure about is the SMTP port number. The error i get is: "Failure sending mail."inner: "Unable to connect to the remote server" inner: "A socket operation was attempted to an unreachable network xxx.xxx.xxx.xxx:xx"
[Code]...
I'm trying to write a console application that can modify registry subkeys on remote pc's in the same network. I have it working in my own environment but when I install on the customer machines I'm getting unauthorized access when it hits the OpenRemoteBaseKey. The security settings in the application properties is set to full trust application so I'm not sure why it won't work.
I'm using Visual Studio 2010 and first I just installed it on the customer machine and when it wouldn't work I ran the source code in Visual Studio 2005 which is on the customer machine but got same results.I can run the app directly on the remote machine and it will change the registry subkeys as directed, I just can't do it remotely. RemoteRegistry service is started. Both machines are logged in as administrators.
Here is the source code:
Imports Microsoft.VisualBasic
Imports System
Imports System.IO
Imports System.Security.Permissions
[code]....
i am trying to open and navigate to second web browser when i recieve this error; here are the details;
System.AccessViolationException was unhandled
Message="Attempted to read or write protected memory. This is often an indication that other memory is corrupt."
Source="System.Windows.Forms"
StackTrace:
[Code]...
this is the code have written am unable to perfrom the log in operation.[code]
View 1 RepliesI've written a VB.NET program for a client that stores all of its data in XML files. I use the XMLReader to read the data into a dataset. When I run the sub to encrypt the XML file, I'll get the following message: Error: mscorlib: The requested operation cannot be performed on a file with a user-mapped section open.
It doesn't happen all the time, so I know it does work. But on occassion, I'll get this message. I've been all over the forums and I've tried everything I've read to try and stop this error.
I close the reader object and set it equal to Nothing. I've even tried using DoEvents to make sure the object finished closing before running the Encrypt sub. Nothing has helped.
I develop on a x32 PC. It works fine on the development machine. But then, when the client runs it on a x64 PC, he gets these errors. Could the x64 system really be running so fast that the .Close() and the = Nothing and evern the .DoEvents() can't keep up?
I want to make an application in VB.NET and I want this application to work as follows, There will be an array of items on which I want to perform a specific operation (MyTask), with the help of multiple threads.For example, say, the array is holding 12 items in it, and I want to create 3 threads to do the work,
Thread 1: Reads the first item from the array and goes to perform the specific operation (MyTask).
Thread 2: Reads the second item from the array and goes to perform the operation MyTask
Thread 3: Reads the third itm from the array and goes to perform the Mytask.
Now once Thread 1 completes the operatin MyTask, I want to assign 4th item from the array to the Thread 1 to continue the process.Once Thread 2 completes the operatin MyTask, I want to assign 5th item from the array to the Thread 2 to continue the process and so on... until all the items from the array is processed. Also, the function taking 5 arguments out of which 4 arguments will be same. Only one argument will vary and it will take the keywords one by one as input parameter.
I have a list of items and wish to set one of their properties to a certain value:
applist.ForEach(Function(x) x.PrePaidTypeID = CInt(DBEnums.PrePaidType.NoPrepay))
...but we think this just does a boolean comparison. Is there a way to force VB to assign the integer value rather than compare it?
I have a project that reference from leadtools 16.5, and after that, i want to run my project..i see am error like it " An error occurred creating the form. See Exception.InnerException for details. The error is: Attempted to read or write protected memory. This is often an indication that other memory is corrupt. im using vb 2008 pro
View 6 Repliescurrently i am working on a project in which i am using datagridview control. if I enter key value in cell than remaining data of that particular row fetch automatically from data base. how? how to delete as row in datagridview? how to update a row in datagridview?
View 5 RepliesI had an exercise where I was supposed to have a button open an openfile dialog box, let the user select a file, then another button that would save the file with the extension ".bak". The author didn't give any clues about manipulating extensions -- but a few chapters back we covered string functions. So, with that in mind, I did the following...
Private Sub btnSaveFile_Click(sender As System.Object, e As System.EventArgs) Handles btnSaveFile.Click
' Where does the extension start
[code].....
I'm trying to create an administrative tool that writes registry values and imports them through the regedit /S command line function, but it's saying it cannot find the file specified. Assuming this is not the correct way to do this. Running Windows 7 Professional x64 and Visual Studio 2010 Professional Service Pack 1
[Code]...
I've got a vb (desktop) app (not a web app) that needs to connect to my website, I've been told that embedding my MySQL database credentials is a big mistake for several reasons.So, I've built a web script in PHP that runs on my server called web-service.php, it's located at www.example.com/web-service.php.Now, I'm trying to connect with this code:
Code:
Dim hwrRequest As HttpWebRequest = HttpWebRequest.Create("http://www.example.com/web-service.php")
hwrRequest.Method = "POST"
Using swWriter As New StreamWriter(hwrRequest.GetRequestStream) 'POST the info
[code]....
And when I do, I get the error "The remote server returned an error: {401} Unauthorised.", but I shouldn't need any credentials to access this. I'm just trying to POST a username and password to that page and have it query the database and then get the returned content, I'd prefer to use POST than GET so you can't see the user/pass in the URL (if possible).
EDIT: I used CPanel to password protect my website so it can't be accessed, after supplying my user & pass to access it, everything works.
below is my code for posting a value in php code and get response...but I am have an error The remote server returned an error: (401) Unauthorized
ddd
Try
Dim post As String
[code]....
why I am having attempted to write error first with my form generating an excel file. Then lately, with my other forms?
View 15 RepliesHere is the code I am working with, everything works fine up until last line then i get evaluate exception unhandled "Cannot perform '=' operation on System.Int32 and System.String." My eyes are going blind trying to figure out whats wrong, if I understand correctly it cant count system string and REO is a string value.
The thing i have done this before ,count that is. I know you cant average strings and some other function but i have been able to count.
d Dim comm As New OleDb.OleDbCommand("Select * From " & Me.OpenFileDialog1.SafeFileName & " Where Status <> 'S'", con)
Dim dalist As New OleDbDataAdapter(comm)
Dim comm1 As New OleDbCommand("SELECT * FROM " & Me.OpenFileDialog1.SafeFileName & " Where Status
[CODE]...
I have several visual basic 2010 programs. One of the programs I have installed the program on four different windows 7 computers. I get the following error on one of the computers.Then another program I have installed it on 8 computers and I get the same error on 6 of the computers. Here is the error message I get:
2011-10-11 06:19:04 , Main, -2147467261, Attempted to read or write protected memory. This is often an indication that other memory is corrupt., at System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg)
[code].....
For this code, I'm trying to have it pull the ID of the doctor from the database and only show their patients. I keep getting this error when I try selecting one from the list though, right at the red section.
[Code]...
I get an error "Cannot perform '=' operation on System.String and System.Int32" on the following code:
VB.Net Code:
Public Sub board2_OnGameWon(ByVal sender As Object, ByVal e As EventArgs)
If Not board2.isCheated() Then
Dim time As Integer = board2.getGameTime()' I have tried changing this to String
[code]....
The exception is in the lines where I 'Dim betterScores' above. The idea is that when the player wins a game their score is placed and held in the betterScore variable. It is then written to an xml file later on.
I have a Difficulty Menu item (System.Windows.Forms ToolStripMenuItem) containing 4 choices, 3 of them work but one doesn't. The one that doesn't work is "1.0 (Normal)" and in the Sub New is "adjustDifficulty(mnuDifficulty100)"I have copied some other subs that are associated with this code below.
VB.Net Code:
Public Sub New()
' This call is required by the Windows Form Designer.
InitializeComponent()
[code]....
I need to perform a huge amount of registry read operations, and I'm trying to figure out a way to make each read operation faster than using My.Computer.Registry.
If I used APIs directly to do it, it should be faster, right?
When i run my projekt on my Pc , on my server then all works fine. Then i have try my project on another server, and get this error in almost. all my forms: Attempted to read or write protected memory, this is often an indication that other memory is corrupt. What to do?
View 6 RepliesI'm gettiing this error from my app: "Attempted to read or write protected memory. This is often an indication that other memory is corrupt." But it carries on for about 5 minutes then stops. The application log shows this:
[Code]...
What I am trying to achieve is if there is an error in cell 1 of the current row it returns to that cell. The code below tries to achieve that, but I get an error message thus:Operation is not valid because it results in a reentrant call to the SetCurrentCellAddressCore function.
Private Sub RoomPricingDGV_CellEnter(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles RoomPricingDGV.CellEnter
If e.ColumnIndex = 2 And cellerror = True Then
[code]....