[2008] OelDBException Was Unhandled
Feb 12, 2009
While running debug, I get the error stated above and the line of code it highlights is:
AuthData = CheckPasswordCommand.ExecuteReader
Here are more details, not sure if it helps or not:
CODE:
It's all the same code my Professor used, and he didn't get an error (at least not with that part of the code) so it's possible it's my machine. I had an error that I took care of by changing a setting within VS by changing an option from x86 to x64, again, not sure if that helps, but there it is.
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Mar 29, 2011
I am writing an application in Vb2008 that generates an Access Database and then uploads data to it. Once the data is upload, it allocates values to a table. It is at the beginning of this segement (the allocation) where the error shows up noted with comments. will furnish more segements of code upon request.
Public
Sub runLocates(ByRef
brkr As
[Code].....
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Nov 7, 2011
i just tried one simple program using database about adding user to the table. And when I executed, it showed me this error:
Quote:Cannot open database "LoginSystem" requested by the login. The login failed. Login failed for user 'Lex-PCLex'.LoginSystem is name of the table
[code]...
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Jun 10, 2010
I am trying to make a simple program that downloads a HTML file but a cookie is required. However I seem to get a weird error and I have no clue how to fix this. The error is(translated):
[Code]...
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Feb 11, 2010
i have just started learning vb and am enjoying it but am having problems. i want to design a three-way dictionary that allows a user to type in a word (English, Kazakh, or Russian) and have that word translated into the other two languages. The user can also add his/her own words and translations to the dictionary.My dictionary is called: "dictionarykre" and is formatted as follows: engword=kazword=rusword. i am reading the dictionary line by line and parsing it with "=", then putting the words into arrays.i keep getting the following error intermittently: IndexOutofRangeException was unhandled. Index was outside the bounds of the array. The error throws on the "KazListBox.Items.Add(arraytextfile(1))" line.i change the dictionary and the program will work for awhile, then the error will occur again.
[code]...
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Mar 27, 2010
I can't figure out how to get VS to break only on unhandled errors. I've tried this checking the "User-unhandled" box and unchecking the "Thrown" box for "Common Language Run-time Exceptions" and I've tried checking both boxes, and I've tried checking only the "Thrown" box, and I've tried unchecking both boxes.VS either completely ignores all run-time exceptions or breaks on both handled and unhandled run-time exceptions. Is my VS 2008 IDE broken or am I missing something?
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Mar 27, 2009
I have an unhandled exception event in the ApplicationEvents area of my program, but it never gets called when I do get unhandled exceptions. Is there a trick to making this work?
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Apr 27, 2010
i got a program thats checks IP adresses and their host names by loking at the ip adress, but 1.- sometimes one ping responds but i get a socket this is the code hello = its the ip (it gets the ip from a list from a datagridview list)
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim hello As String
Dim sum As Integer
[code]....
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Nov 28, 2009
I got the error after I added forms from another project into a new project. Theres no error in my code so it doesn't show where the error occurred.. out and explain what this exception means?
[Code]...
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Jan 23, 2012
i have a code that grabs an image from a site, this works fine and it does get the image fine, but every now and again my internet runs slow and it takes a while for the image to pop up thus causing the error:[code]How would i make it display the msgbox if it returns NullReferenceException error ?
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Sep 27, 2011
i have a small problem with my code that only happens every now and again.Im using multi threading on this and every now and again i get this error: System.NullReferenceException was unhandled Message="Object reference not set to an instance of an object."
Some times the program completes perfect with no errors and sometimes i get the above error.When i get the error there is always 1 item left in the list but when it completes perfect no items are left.Again this error does not appear every time, only every now and again. For example i had to run my program like 20 time to get this error, 19 times it worked perfect with no errors and 1 time with this error.
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Mar 5, 2009
I am having the following error in VB 2008:System.InvalidOperationException was unhandled Message="An error occurred creating the form. See Exception.InnerException for details. The error is: Object reference not set to an instance of an object."
[Code]...
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Aug 13, 2009
I have declared two variables as strings strDob and strCurrentDate, Both Variables are for storing dates. StrDob is for storing Date of Birth and second is for Present date. and am executing the following code
If DateValue(strDOB) > DateValue(Date.Today) Then
and getting the error like
Invalid CastException was unhandled
Conversion from string "19/09/1987" to type 'Date' is not valid.
Error in the following code also:
iAge = (CInt(Abs(DateDiff("d", strCurrentDate, strDOB)) / 365))
Invalid CastException was unhandled
Argument 'Date1' cannot be converted to type 'Date'.
Here I need both variables as string itself. because the Dateofbirth is getting from three comboboxes.
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Jun 29, 2011
The programs runs fine for about 10 seconds but then I get this error message: ArgumentException was unhandled. Message: The parameter is incorrect. Here's my
[Code]...
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Feb 8, 2010
Having created a database and testing it I get the following error message,
ARGUMENT EXCEPTION WAS UNHANDLED
Public Class Form1
Private Sub AddressBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles AddressBindingNavigatorSaveItem.Click
[code]....
My action during the test was to fill in a field, save it then changed the information within, only to get the above message.
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Mar 26, 2011
[code] this is my code n i want to store data at runtime in the my database.i used data base as an access07 and my platform is vb.net..Now come to the point when i run the project it terminates when i'm inserting my data in the access file.[code]
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May 11, 2009
running my app in Debug Mode within Visual Studio I've been able to allow the user to Open an Access Report and if need be print it off. This has worked great.Unfortunately when I run the .exe file I get the following Unhandled exception message.'Could not load file or assembly 'Interop.Access, Version=9.0.0.0, Culture=neutral, PublicKeyToken=nuill' or one of its dependencies. The system cannot find the file specified.'Like I say above, this works when run from within Visual Studio, the code as far as I know is not the problem.
Here's the code I use on a menu item click,
Dim strFileName As String
Dim str As String
Dim RepName As String
[code]....
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Mar 6, 2010
Hi guys. Our application got this exception after it was closed... I was wondering how we can solve this...
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Apr 9, 2009
im running the following bit of code in a background worker and it is coming up with the following error
"The remote server returned an error: (503) Bad sequence of commands."the code is My.Computer.Network.DownloadFile(strFTP & aryfiles(i), My.Settings.strLocalTemp & aryfiles(i), strPUserName, strPPassword, False, 100, True) It runs fine the first time through but 5 mins later when it runs again it always throws this error.
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Jan 19, 2009
My code
Dim pointer As Integer, index As Integer
For pointer = 1 To 6
For index = 0 To 5999
[CODE]...
All i get is an error message saying NullReferenceException was unhandled the bold part is were it says the error is
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Nov 19, 2009
I get this:
Cannot access a disposed object.
Object name: 'MainForm'.
Here is the code I'm running. It's after the MsgBox "Readme file cannot be found. Please put the original readme in the current working directory of this executable." (and it's dismissed) that I get the unhandled exception error.
Private Sub MainForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim readme As String = My.Computer.FileSystem.CurrentDirectory + "
eadme_ctb_v100.txt"
MsgBox(readme)
If My.Computer.FileSystem.FileExists(readme) = True Then
[Code] .....
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Sep 8, 2009
System.ExecutionEngineException was unhandled Message: An unhandled exception of type 'System.ExecutionEngineException' occurred in Unknown Module.There are no further details and the stack trace window is blank I was just wondering how it would be best to work out where this error message is happening - i really don't want to put a million debug.prints in there to work out what functions were last called etc.
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Apr 1, 2009
I am building a chat client/server. And I can connect and chat just fine, but when a user disconnects, the server does not recognize this and acts weird, often spamming the last message that was sent by the user..Also, it's like the client does not disconnect from the server even when I close the client app. Once I exit the program, VB acts like it is still debugging. Once the server is shut down however, I get this error:
IOException was unhandled:Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.
serverStream.Read(inStream, 0, buffSize)I don't know how to make my client and server accept the fact that a client has disconnected...
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Apr 1, 2010
i am getting an error called "OledbException was unhandled-operation cannot be performed" when i entered the values in the textboxs and click button3.When i build this code,it is succeeded.but at the runtime when i click button3 after giving the values in the textboxes this error occurs. below is the code i used....
[Code]...
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Oct 16, 2010
I tried to start using VB 2010 Express with a program I originally developed with VB 2005 Express that I moved to VB 2008 Express successfully a couple years ago. It uses a database file (*.mdf) that is on the computer ( not out on a server). When attempt to run the program in debug mode, I get the following error "An attempt to attach an auto-named database for file C:Documents and SettingsTomMy DocumentsQuizzing StuffQuestion Database 2010QuizQuest ionGameQuizQuestionGameinReleaseQuizQuestionDB.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share."
I first made a copy of the entire project folder that was working in VB 2008 Express and gave it a different name. In VB2010 I opened the project in the copied folder and it said it successfully converted the project. I am able to open the Data Source inthe Designer and see the database structure as I expect. I think the project is still using SQL Server 2005 Express (because it is what is checked in the list of prerequisites on the Publish tab).
Note, I have programmed off and on for many years, but fairly new to using databases and SQL Server.
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Jan 14, 2010
[Code]...
VS 2008 Null error "NullReference object was unhandled"
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Jun 5, 2009
a company gave me a program that allows the user enter in data which goes through dll files to calculate numbers for me to use for my own application. Unfortunately I have to interpret the code work for me and I have never worked with dll files and I have come to an error I don't understand.When I press play and click a button which does the calculation I get the error:"COM Exception was unhandled" Creating an instance of the COM component with CLSID {4BD1D1D2-A466-4EC0-9A54-61232C469C77} from the IClassFactory failed due to the following error: 80004005.
The code goes somethin like this:
Public fctwh As dllOemBat.classwh
Sub CalculationWH()
[code]....
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Mar 18, 2012
I am trying to read a 16bit binary file (tif image) and pixel values of the image ranges from 1200 to 4500. I tried to use BinaryReader using ReadUInt16 but I get EndOfStreamException Unhandled error. ReadByte method works fine with an 8bit tif file. I do not know how to read a 16bit image file using binaryReader. Shouldn't I use ReadUInt16 since values of pixels range from 1200 to 4500?
[Code]....
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Apr 4, 2012
Dim CustID As String = txtSrchCustID.Text
Dim FirstName As String = txtNewCustFName.Text
Dim SecondName As String = txtNewCustSName.Text
If CustID And FirstName And SecondName = "" Then
MsgBox("Please enter a term to search by")
EndIf
This returns "Conversion from string "" to type 'Long' is not valid." I was wondering what the error is and how it's possible to fix it? The other questions that I've looked at were mostly to do with variables assigned incorrect types, but I think that isn't the issue. It occurs when all of the variables are empty.
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Sep 19, 2011
This never happened to me, and the less data one has (usually) the less you can say what happened.I am trying to write a simple query analyser. I randomly receive these kind of crashes:
[Code]...
The file specified above does not exist. The place where it crashes is wrapped with Try-End Try. Moreover, yes, I have the painting event set up but it should not concern it (or maybe it does?). I have to add that I use visual basic express edition. The error occurs ocasionally - sometimes when I'm lucky nothing happens, and when I'm not then I get this crash.
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